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Arun Kumar
Department of Electronics and Communication, JECRC University, Jaipur, Rajasthan, India

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Journal article
Published: 06 June 2021 in Alexandria Engineering Journal
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In the present scenario, orthogonal frequency division multiplexing (OFDM) waveform technique is playing a significant part in smart hospitals. Still, its impact is not effective in smart hospitals due to the numerous limitations such as loss of bandwidth due to the use of guard band, spectrum leakage, high peak to average power (PAPR), high detection delay, and thus along. Right now, fifth-generation (5G) employment is becoming regularized around the world and the state-of-the-art radio system is expected to meet all the demands of smart hospitals. High spectrum access, massive capacity, high throughput, and low PAPR are the requirements of smart healthcare hospitals. The digital hospital has seen tremendous progression in bandwidth requirements. From transmitting medical images to wearable devices, networks must operate at maximum speeds to safeguard patient care. The selection of competent transmission technologies will play an important role in the regularization of digital hospitals equipped with 5G. In the projected work, we focus on the implementation of novel waveforms such as Non-orthogonal multiple access (NOMA), Universal filter multi-carrier (UFMC), and filter bank multi-carrier (FBMC) system. Several parameters such as power spectrum density, bit error rate, capacity, and PAPR of advanced waveforms and OFDM methods are analyzed and studied.

ACS Style

Arun Kumar; R. Dhanagopal; Mahmoud A. Albreem; Dac-Nhuong Le. A comprehensive study on the role of advanced technologies in 5G based smart hospital. Alexandria Engineering Journal 2021, 60, 5527 -5536.

AMA Style

Arun Kumar, R. Dhanagopal, Mahmoud A. Albreem, Dac-Nhuong Le. A comprehensive study on the role of advanced technologies in 5G based smart hospital. Alexandria Engineering Journal. 2021; 60 (6):5527-5536.

Chicago/Turabian Style

Arun Kumar; R. Dhanagopal; Mahmoud A. Albreem; Dac-Nhuong Le. 2021. "A comprehensive study on the role of advanced technologies in 5G based smart hospital." Alexandria Engineering Journal 60, no. 6: 5527-5536.

Journal article
Published: 01 June 2021 in Frequenz
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This article proposes a design and implementation of array Microstrip Patch antenna of configuration 2 × 2 at an operating frequency of 3.5 GHz. The proposed design takes a dimension of 80 mm × 92 mm × 1.6 mm with four radiating elements arranged in rectangular form with an optimized separation between the patches. All the radiating elements were connected through a corporate series network with an inset feed to have better impedance matching. The model gives an efficiency of 90.99% with a bandwidth of 510 MHz and with fractal configuration, the bandwidth further enhances to 1.12 GHz. The maximum gain measured was found as 11.01 dBi at θ = 10° and ɸ = 360° and 10.45 dBi with fractal configuration. The designed antenna is proposed to be used in RADAR which will be used in the intelligent transportation system for the detection of nearby (short-range) vehicles in the blind zone. This kind of Radar also finds its application in collision avoidance and activating airbags/break boosting and thus helping mankind by saving lives. The article gives an idea of the use of an array antenna in intelligent transportation system for better gain and efficient results.

ACS Style

Arun Kumar Singh; Arun Kumar; Samarendra Nath Sur; Rabindranath Bera; Bansibadan Maji. Design and implementation of microstrip array antenna for intelligent transportation systems application. Frequenz 2021, 75, 267 -273.

AMA Style

Arun Kumar Singh, Arun Kumar, Samarendra Nath Sur, Rabindranath Bera, Bansibadan Maji. Design and implementation of microstrip array antenna for intelligent transportation systems application. Frequenz. 2021; 75 (7-8):267-273.

Chicago/Turabian Style

Arun Kumar Singh; Arun Kumar; Samarendra Nath Sur; Rabindranath Bera; Bansibadan Maji. 2021. "Design and implementation of microstrip array antenna for intelligent transportation systems application." Frequenz 75, no. 7-8: 267-273.

Article
Published: 13 February 2021 in Wireless Personal Communications
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UWB transmits low power capable of working on the low signal to noise ratios. It acts as a jamming resistance whereas its performance is very high in multipath channels. It has a large channel capacity and simple transceiver architecture. Its performance is high even in noisy environments and possesses the least probability of intercepting and detecting capability. UWB is favored for use in driven battery devices. In this work, we have focused to simulate and evaluate the performance of Non-line of sight (N-LOS) BER (0–4 m) multiple input and multiple outputs—UWB for line of sight (LOS) and N-LOS conditions using Quadrature Phase shift Keying (QPSK) transmission scheme. The parameters such as error vector magnitude (EVM), bit error rate (BER), signal to noise ratio (SNR), constellation diagram, the spectrum of transmitting and receive signal are discussed and analyzed.

ACS Style

Avireni Bhargav; Arun Kumar. Performance of MIMO-UWB for LOS and N-LOS Propagation. Wireless Personal Communications 2021, 119, 629 -637.

AMA Style

Avireni Bhargav, Arun Kumar. Performance of MIMO-UWB for LOS and N-LOS Propagation. Wireless Personal Communications. 2021; 119 (1):629-637.

Chicago/Turabian Style

Avireni Bhargav; Arun Kumar. 2021. "Performance of MIMO-UWB for LOS and N-LOS Propagation." Wireless Personal Communications 119, no. 1: 629-637.

Originalpaper
Published: 01 February 2021 in Journal of Communications Technology and Electronics
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PAPR (Peak to average power ratio) is viewed as one of the serious concerns in NOMA (Non-Orthogonal multiple access) structures, which deteriorates the efficiency of a non-linear amplifier used in the system. In this correspondence, PTS-PSO (Partial transmission sequence-Particle swarm optimization) algorithm is implemented to analyze the PAPR, BER (bit error rate) and complexity of the system. The central target is to utilize a PSO algorithm to look for an ideal phase factor for PTS method, for which optimized PAPR and BER performance is achieved and complexity is also shortened. Further, the PTS-PSO algorithm is compared to the existing PAPR minimization algorithms and it is determined that the projected PTS-PSO gives a supreme performance related to prevailing PAPR minimization processes.

ACS Style

A. Kumar. PAPR Minimization in FBMC Multi-Carrier Waveform by Particle Transmission Sequence-Particle Swarm Optimization Algorithm. Journal of Communications Technology and Electronics 2021, 66, 155 -163.

AMA Style

A. Kumar. PAPR Minimization in FBMC Multi-Carrier Waveform by Particle Transmission Sequence-Particle Swarm Optimization Algorithm. Journal of Communications Technology and Electronics. 2021; 66 (2):155-163.

Chicago/Turabian Style

A. Kumar. 2021. "PAPR Minimization in FBMC Multi-Carrier Waveform by Particle Transmission Sequence-Particle Swarm Optimization Algorithm." Journal of Communications Technology and Electronics 66, no. 2: 155-163.

Journal article
Published: 09 November 2020 in Sustainability
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Massive multiple-input multiple-output (MIMO) is a backbone technology in the fifth-generation (5G) and beyond 5G (B5G) networks. It enhances performance gain, energy efficiency, and spectral efficiency. Unfortunately, a massive number of antennas need sophisticated processing to detect the transmitted signal. Although a detector based on the maximum likelihood (ML) is optimal, it incurs a high computational complexity, and hence, it is not hardware-friendly. In addition, the conventional linear detectors, such as the minimum mean square error (MMSE), include a matrix inversion, which causes a high computational complexity. As an alternative solution, approximate message passing (AMP) algorithm is proposed for data detection in massive MIMO uplink (UL) detectors. Although the AMP algorithm is converging extremely fast, the convergence is not guaranteed. A good initialization influences the convergence rate and affects the performance substantially together and the complexity. In this paper, we exploit several free-matrix-inversion methods, namely, the successive over-relaxation (SOR), the Gauss–Seidel (GS), and the Jacobi (JA), to initialize the AMP-based massive MIMO UL detector. In other words, hybrid detectors are proposed based on AMP, JA, SOR, and GS with an efficient initialization. Numerical results show that proposed detectors achieve a significant performance enhancement and a large reduction in the computational complexity.

ACS Style

Mahmoud Albreem; Arun Kumar; Mohammed Alsharif; Imran Khan; Bong Choi. Comparative Analysis of Data Detection Techniques for 5G Massive MIMO Systems. Sustainability 2020, 12, 9281 .

AMA Style

Mahmoud Albreem, Arun Kumar, Mohammed Alsharif, Imran Khan, Bong Choi. Comparative Analysis of Data Detection Techniques for 5G Massive MIMO Systems. Sustainability. 2020; 12 (21):9281.

Chicago/Turabian Style

Mahmoud Albreem; Arun Kumar; Mohammed Alsharif; Imran Khan; Bong Choi. 2020. "Comparative Analysis of Data Detection Techniques for 5G Massive MIMO Systems." Sustainability 12, no. 21: 9281.

Journal article
Published: 03 November 2020
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ACS Style

Arun Kumar. Design of rectangular t-shaped antenna for detection of breast cancer. 2020, 1 .

AMA Style

Arun Kumar. Design of rectangular t-shaped antenna for detection of breast cancer. . 2020; ():1.

Chicago/Turabian Style

Arun Kumar. 2020. "Design of rectangular t-shaped antenna for detection of breast cancer." , no. : 1.

Journal article
Published: 18 August 2020 in IEEE Access
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With the rapid increase in the development of a cellular communication system, remote health monitoring and smart health care are improving and getting through a swift transformation. Currently, we are utilizing the advance long term evolution (A-LTE) network to support the modern health care. Nevertheless, smart hospital/health concern is not fully evolved all around the world. The rollout of the fifth generation (5G) will improve the standard of the smart health care. However, requirements of a smart hospital will be different as compared to other applications such as education, industries, and the public. The smart hospital will be connected 24/7, with several small devices integrated with the sensors. In simple words, the future smart hospital will be based on the 5G and the internet of things (IoT), expected to augment the system coverage, effectiveness, and throughput of the system. Further, high speed, low latency, spectral efficiency, and low energy consumption are the requirements of the 5G based modern hospital. In this correspondence, we focused to improve the latency, spectrum, and throughput of the 5G network by implementing a hybrid detection technique based on the QR decomposition and the M algorithm-maximum likelihood detection (QRM-MLD) and beamforming (BF) for massive multiple-input multiple-output (MIMO) and non-orthogonal multiple access (NOMA) system. In addition, a comparison between the proposed and conventional detection techniques is presented. The proposed hybrid detection technique improves the throughput of the system and reduces the computational complexity as compared to the conventional QRM-MLD algorithm, conventional BF and zero-forcing (ZF) techniques on the platform of several parameters i.e. complexity, bit error rate (BER), peak power, etc.

ACS Style

Arun Kumar; Mahmoud A. Albreem; Manoj Gupta; Mohammed H. Alsharif; Sunghwan Kim. Future 5G Network Based Smart Hospitals: Hybrid Detection Technique for Latency Improvement. IEEE Access 2020, 8, 153240 -153249.

AMA Style

Arun Kumar, Mahmoud A. Albreem, Manoj Gupta, Mohammed H. Alsharif, Sunghwan Kim. Future 5G Network Based Smart Hospitals: Hybrid Detection Technique for Latency Improvement. IEEE Access. 2020; 8 (99):153240-153249.

Chicago/Turabian Style

Arun Kumar; Mahmoud A. Albreem; Manoj Gupta; Mohammed H. Alsharif; Sunghwan Kim. 2020. "Future 5G Network Based Smart Hospitals: Hybrid Detection Technique for Latency Improvement." IEEE Access 8, no. 99: 153240-153249.

Foundations
Published: 10 June 2020 in Soft Computing
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One of the challenges in rollout of 5G is utilizing the radio communication which is not accessible by today’s radio system. To achieve a high data rate, it is necessary to make 5G networks compatible with advanced waveform. In this correspondence, we discussed advanced waveform technique non-orthogonal multiple access (NOMA) and filter bank multicarrier (FBMC) for 5G network. The design of advanced form technique compatible with advanced wireless communication is very important to fulfill the vision the 5G. Peak average to power ratio (PAPR) is viewed as a significant issue in actualizing NOMA and FBMC framework. PAPR reduction design for FBMC has been presented in the writing survey, yet PAPR decrease methods in NOMA are not investigated up until this point. In that regard are different downsides of minimization techniques introduced in the review. In the present investigation, we have inspected and analyzed the presence of the reduction systems and proposed a hybrid strategy (DSLM-CT) based on discrete selective mapping (DSLM) and circular transformation technique. Further, several parameters are discussed and analyzed. At long last, it is reasoned that the exhibition of the proposed hybrid technique is better than the existed minimization methods. Additionally, it is also observed that the implementation of proposed technique reduces the power consumption of solid state power amplifier.

ACS Style

Arun Kumar; Manisha Gupta. A comprehensive study of PAPR reduction techniques: design of DSLM-CT joint reduction technique for advanced waveform. Soft Computing 2020, 24, 11893 -11907.

AMA Style

Arun Kumar, Manisha Gupta. A comprehensive study of PAPR reduction techniques: design of DSLM-CT joint reduction technique for advanced waveform. Soft Computing. 2020; 24 (16):11893-11907.

Chicago/Turabian Style

Arun Kumar; Manisha Gupta. 2020. "A comprehensive study of PAPR reduction techniques: design of DSLM-CT joint reduction technique for advanced waveform." Soft Computing 24, no. 16: 11893-11907.

Short communication
Published: 04 March 2020 in National Academy Science Letters
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Massive multi-input and multi-output (MIMO) is considered as the most important technology to attain the high data rate for next-generation mobile communication. It comprises more than one antenna at the sender and recipient sides. The detection of the signal in these systems is complex. In this work, we suggest a novel QRM-MLD algorithm with maximum likelihood detection to reduce the latency and complexity of the massive MIMO system. The simulation results indicate that the proposed system accomplished a reduced latency and complexity with a trivial penalty of bit error rate performance as compared to the existed techniques.

ACS Style

Arun Kumar. Detection in 5G Mobile Communication System Using Hybrid Technique. National Academy Science Letters 2020, 44, 39 -42.

AMA Style

Arun Kumar. Detection in 5G Mobile Communication System Using Hybrid Technique. National Academy Science Letters. 2020; 44 (1):39-42.

Chicago/Turabian Style

Arun Kumar. 2020. "Detection in 5G Mobile Communication System Using Hybrid Technique." National Academy Science Letters 44, no. 1: 39-42.

Journal article
Published: 21 January 2020 in Micro and Nanosystemse
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Background: Fractional order Butterworth and Chebyshev (low-pass filter circuits, highpass filter circuits and band-pass filters circuits) types of first and second order filter circuits have been simulated and their transfer function are derived. The effect of change of the fractional order α on the behavior of the circuits is investigated. Objective: This paper presents the use of fractional order capacitor in active filters. The expressions for the magnitude, phase, the quality factor, the right-phase frequencies, and the half power frequencies are derived and compared with their previous counterpart. Methods: The circuits have been simulated using Orcad as well as MATLAB for the different value of α. We have developed the fractional gain and phase equations for low pass filter circuits, high pass filter circuits and band pass filter circuits in Sallen-Key topology. Results: It is observed that the bandwidth increases significantly with fractional order other than unity for the low pass as well as high pass and band pass filters. Conclusion: We have also seen that in the frequency domain, the magnitude and phase plots in the stop band change nearly linearly with the fractional order. If we compare the fractional Butterworth filters for low-pass and high-pass type with conventional filters then we find that the roll-off rate is equal to the next higher order filter.

ACS Style

Kanchan Sengar; Arun Kumar. Fractional Order Capacitor in First-Order and Second-Order Filter. Micro and Nanosystemse 2020, 12, 75 -78.

AMA Style

Kanchan Sengar, Arun Kumar. Fractional Order Capacitor in First-Order and Second-Order Filter. Micro and Nanosystemse. 2020; 12 (1):75-78.

Chicago/Turabian Style

Kanchan Sengar; Arun Kumar. 2020. "Fractional Order Capacitor in First-Order and Second-Order Filter." Micro and Nanosystemse 12, no. 1: 75-78.

Journal article
Published: 03 January 2020
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ACS Style

Arun Kumar. An experimental investigation and performance of LTE-femto cell. 2020, 1 .

AMA Style

Arun Kumar. An experimental investigation and performance of LTE-femto cell. . 2020; ():1.

Chicago/Turabian Style

Arun Kumar. 2020. "An experimental investigation and performance of LTE-femto cell." , no. : 1.

Short communication
Published: 16 November 2019 in National Academy Science Letters
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In this work, a design is proposed to improve the performance of the conventional series-fed dipole pair (SDP) antenna by adding split-ring resonator (SRR). Firstly, a conventional SDP antenna that functions in the frequency range of 1.7–2.7 GHz is designed by adjusting the distances of the dipoles and the space between the two presentations. Later, a couple of SRR is mounted above the top dipole to improve the antenna performance. Then, the effects of SRR on the impedance, bandwidth and gain are examined. The experimental results show that the proposed antenna has an increased gain. The antenna is simulated, and parameter measurement is done using a CST microwave studio. The proposed antenna can be used for GPS, WIFI and Wi-MAX.

ACS Style

Arun Kumar; Manisha Choudhary. Dual Band Modified Split-Ring Resonator Microstrip Antenna for Wireless Applications. National Academy Science Letters 2019, 43, 237 -240.

AMA Style

Arun Kumar, Manisha Choudhary. Dual Band Modified Split-Ring Resonator Microstrip Antenna for Wireless Applications. National Academy Science Letters. 2019; 43 (3):237-240.

Chicago/Turabian Style

Arun Kumar; Manisha Choudhary. 2019. "Dual Band Modified Split-Ring Resonator Microstrip Antenna for Wireless Applications." National Academy Science Letters 43, no. 3: 237-240.

Articles
Published: 31 October 2019 in IETE Journal of Research
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Non-orthogonal multiple access (NOMA) and filter bank multi carrier (FBMC) based on multi-carrier techniques are two best transmission schemes candidates for the modern mobile communication system. High peak to average power ratio (PAPR) is regarded as an important problem in implementing NOMA and FBMC systems. Several PAPR reduction techniques for FBMC have been presented in the literature review, but PAPR reduction techniques in NOMA are not explored so far. In that regard, there are several drawbacks of reduction methods presented in the literature. The disadvantages include a decrease in performance of bit error rate (BER), design complexity, minimum bit rate. In the present study, we have examined and compared the performance of the reduction techniques and proposed a selective mapping circular transformation hybrid (SLMCT) method. It is observed that SLMCT is the best method to enhance the PAPR and BER performance and minimizes the complexity of PTS technique. Further BER, PAPR, net gain, power reduction and CCDF parameters are examined. Finally, it is concluded that the performance of the proposed hybrid method is better than the existed peak power minimize techniques and plays an important role, when the objective is to maximize the performance of both PAPR and BER.

ACS Style

Arun Kumar. A Novel Hybrid PAPR Reduction Technique for NOMA and FBMC System and its Impact in Power Amplifiers. IETE Journal of Research 2019, 1 -17.

AMA Style

Arun Kumar. A Novel Hybrid PAPR Reduction Technique for NOMA and FBMC System and its Impact in Power Amplifiers. IETE Journal of Research. 2019; ():1-17.

Chicago/Turabian Style

Arun Kumar. 2019. "A Novel Hybrid PAPR Reduction Technique for NOMA and FBMC System and its Impact in Power Amplifiers." IETE Journal of Research , no. : 1-17.

Journal article
Published: 28 October 2019 in Egyptian Informatics Journal
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Non-Orthogonal multiple access (NOMA) and Cognitive radio (Cr) are seen as one of the most promising techniques, which improves the utilization of the spectrum in 5G. The expanding number of wireless applications like new gadgets, IOT brought about developing a block in the ISM groups. The FCC requested to permit unlicensed clients to work in the void area without obstruction to an authorized guest. Cr gives an answer for an extra range prerequisite issue for productive spectrum usage. The foremost condition for permitting CRs to utilize spectrum is not causing obstruction to licensed users. Spectrum sensing permit secondary users (Su) to separately recognize the idle portions of the spectrum, and thus evade obstruction to licensed users. In existing spectrum sensing techniques, SU can only utilize the unused spectrum when PU is not present. Therefore, spectrum exploitation of the conventional system is very low. In recent times NOMA has been projected to utilize the spectrum in an efficient manner. The proposed work permits the SU to utilize a spectrum of PU, both at its absence. Spectrum sensing in NOMA is not explored so far. Hence, in this paper, NOMA based matched filter detection is designed for QAM-64 and QAM-256. Matlab simulation is applied to study the operation of the proposed detection technique in NOMA in respect of several parameters like bit error rate (BER) Vs signal to noise ratio (SNR), the probability of detection (Pd), and probability of false alarm (Pfa).

ACS Style

Arun Kumar; Mohit Kumar Sharma; Kanchan Sengar; Suraj Kumar. NOMA based CR for QAM-64 and QAM-256. Egyptian Informatics Journal 2019, 21, 67 -71.

AMA Style

Arun Kumar, Mohit Kumar Sharma, Kanchan Sengar, Suraj Kumar. NOMA based CR for QAM-64 and QAM-256. Egyptian Informatics Journal. 2019; 21 (2):67-71.

Chicago/Turabian Style

Arun Kumar; Mohit Kumar Sharma; Kanchan Sengar; Suraj Kumar. 2019. "NOMA based CR for QAM-64 and QAM-256." Egyptian Informatics Journal 21, no. 2: 67-71.

Journal article
Published: 27 October 2019 in Известия высших учебных заведений. Радиоэлектроника
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Технология FBMC-OQAM рассматривается как одна из предпочтительных технологий для мобильной связи 5G следующего поколения. Она имеет преимущества по сравнению c мультиплексированием с ортогональным частотным разделением каналов OFDM (Orthogonal Frequency-Division Multiplexing), однако ей присущи и недостатки, такие как высокая пиковая мощность. Метод нескольких несущих с банком фильтров FBMC (Filter Bank Multi-Carrier) использует группу фильтров на передающей и приемной стороне системы. Высокая пиковая мощность снижает эффективность системы FBMC. В данном исследовании для уменьшения отношения PAPR пиковой мощности к средней (Peak to Average Power Ratio) сигналов FBMC реализован объединенный (гибридный) метод, на основании методов частично передаваемой последовательности PTS (Partial Transmit Sequence) и резервирования тона TR (Tone Reservation). Сигнал блока данных разделяется на сегменты и на основании значения коэффициента перекрытия выбираются блоки каждого сегмента. В каждой части подбирается оптимальный блок данных с точки зрения уменьшения пикового значения сигнала. Результаты моделирования показали, что предложенный метод лучше по сравнению с традиционным методом уменьшения PAPR. Также реализован k-гибридный метод уменьшения PAPR. Показано, что эффективность k-гибридного метода выше, чем гибридного метода.

ACS Style

Arun Kumar. Уменьшение PAPR системы FBMC гибридным и k-гибридным методами. Известия высших учебных заведений. Радиоэлектроника 2019, 62, 593 -601.

AMA Style

Arun Kumar. Уменьшение PAPR системы FBMC гибридным и k-гибридным методами. Известия высших учебных заведений. Радиоэлектроника. 2019; 62 (10):593-601.

Chicago/Turabian Style

Arun Kumar. 2019. "Уменьшение PAPR системы FBMC гибридным и k-гибридным методами." Известия высших учебных заведений. Радиоэлектроника 62, no. 10: 593-601.

Journal article
Published: 01 October 2019 in Radioelectronics and Communications Systems
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FBMC-OQAM is reflected as one of the most capable techniques for the next generation mobile communication namely 5G. It has several advantages as compared to orthogonal frequency division multiplexing (OFDM) but it also has some drawbacks like high peak power. Filter bank multi-carrier (FBMC) employs a group of filters at the transmitter and the receiver part of the system. The high peak power decreases the efficiency FBMC system. In this study, a joint (hybrid) peak to average power ratio (PAPR) reduction technique is carried out by using partial transmit sequence (PTS) and tone reservation (TR) for FBMC signals. The blocks of data signal are split into numerous segments and the blocks of each segment are decided on the basis of overlapping factor. In every part, we pick out the optimal block of data to transmit and mutually consider the contiguous coincided block to accomplish reduce peak signal. The simulation results reveal that the proposed technique is better than the conventional PAPR reduction technique. Additionally, k-hybrid PAPR reduction technique is carried out. It is observed that the performance of the proposed k-hybrid technique is better than the hybrid technique.

ACS Style

Arun Kumar. PAPR Reduction of FBMC Using Hybrid and k-Hybrid Techniques. Radioelectronics and Communications Systems 2019, 62, 501 -509.

AMA Style

Arun Kumar. PAPR Reduction of FBMC Using Hybrid and k-Hybrid Techniques. Radioelectronics and Communications Systems. 2019; 62 (10):501-509.

Chicago/Turabian Style

Arun Kumar. 2019. "PAPR Reduction of FBMC Using Hybrid and k-Hybrid Techniques." Radioelectronics and Communications Systems 62, no. 10: 501-509.

Journal article
Published: 29 August 2019 in Известия высших учебных заведений. Радиоэлектроника
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В настоящее время беспроводная связь получила широкое применение в различных сферах человеческой жизни. Увеличение требований к возрастающей скорости передачи данных приводит к необходимости исследования систем с FBMC (Filter Bank Multi-Carrier), как новых систем передачи данных в мобильной связи следующего поколения. FBMC — метод нескольких несущих, использующий фильтры на передающей и принимающей сторонах системы. Он рассматривается как наиболее перспективный метод для систем связи пятого поколения 5G. Однако высокое значение параметра отношения пиковой мощности к средней PAPR (Peak Average Power Ratio) является проблемой систем с FBMC. Методы уменьшения PAPR, используемые в OFDM, не могут быть использованы в FBMC из-за перекрывающейся структуры. Поэтому проводятся исследования новых методов уменьшения PAPR. В данной работе для уменьшения PAPR предложен метод рассеянного селективного отображения DSLM (Dispersive SeLective Mapping). Предложенный метод сравнивается с такими методами уменьшения PAPR, как метод селективного отображения SLM (SeLected Mapping) и метод клиппирования. Результаты компьютерного моделирования показали, что метод DSLM более эффективен с точки зрения частоты битовой ошибки BER (bit error rate), величины PAPR и сложности реализации по сравнению с методами SLM и клиппирования.

ACS Style

Arun Kumar; Хемант Ратор. Модифицированный метод DSLM для уменьшения PAPR в системах с FBMC. Известия высших учебных заведений. Радиоэлектроника 2019, 62, 496 -502.

AMA Style

Arun Kumar, Хемант Ратор. Модифицированный метод DSLM для уменьшения PAPR в системах с FBMC. Известия высших учебных заведений. Радиоэлектроника. 2019; 62 (8):496-502.

Chicago/Turabian Style

Arun Kumar; Хемант Ратор. 2019. "Модифицированный метод DSLM для уменьшения PAPR в системах с FBMC." Известия высших учебных заведений. Радиоэлектроника 62, no. 8: 496-502.

Journal article
Published: 29 August 2019 in Frequenz
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Novel and miniaturized hexagonal Microstrip patch antenna design is presented in this paper. Patch is fractured using Sierpinski and Koch structures to make the antenna applicable for multiband applications. Additionally ground is defected to enhance the bandwidth and further size is reduced. Material FR-4 (εr = 4.4)has been chosen to design proposed antenna and substrate thickness as 1.59 mm. Microstrip feed technique is used as it provides better results. Gain obtained in this case is 5.57 dB, 7.49 dB and 4.02 dB with bandwidth as 606.8 MHz, 507 MHz and 2 GHz at 8.3 GHz, 12.6 GHz and 17.6 GHz resonant frequencies. The antenna is better to other designs in terms of parameters like bandwidth, directivity, polarization, gain, return loss and dimension. The antenna provides application for military appliances. A good concord is obtained in Simulated and measured results.

ACS Style

Manisha Gupta; Vinita Mathur; Arun Kumar; Virendra Saxena; Deepak Bhatnagar. Microstrip Hexagonal Fractal Antenna for Military Applications. Frequenz 2019, 73, 321 -330.

AMA Style

Manisha Gupta, Vinita Mathur, Arun Kumar, Virendra Saxena, Deepak Bhatnagar. Microstrip Hexagonal Fractal Antenna for Military Applications. Frequenz. 2019; 73 (9-10):321-330.

Chicago/Turabian Style

Manisha Gupta; Vinita Mathur; Arun Kumar; Virendra Saxena; Deepak Bhatnagar. 2019. "Microstrip Hexagonal Fractal Antenna for Military Applications." Frequenz 73, no. 9-10: 321-330.

Journal article
Published: 01 August 2019 in Radioelectronics and Communications Systems
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ACS Style

Arun Kumar; Hemant Rathore. Modified DSLM Technique for PAPR Reduction in FBMC System. Radioelectronics and Communications Systems 2019, 62, 416 -421.

AMA Style

Arun Kumar, Hemant Rathore. Modified DSLM Technique for PAPR Reduction in FBMC System. Radioelectronics and Communications Systems. 2019; 62 (8):416-421.

Chicago/Turabian Style

Arun Kumar; Hemant Rathore. 2019. "Modified DSLM Technique for PAPR Reduction in FBMC System." Radioelectronics and Communications Systems 62, no. 8: 416-421.

Chapter
Published: 18 July 2019 in Recent Developments in Stochastic Methods and Applications
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Orthogonal frequency division multiplexing (OFDM) is the advanced transmission scheme utilized in 4G. Nevertheless, it has several shortcomings like guard band, peak-to-average power ratio (PAPR), high power consumption, incapable to accommodate various other devices (an IOT application). Hence, OFDM cannot be considered in 5G due to the several disadvantages mentioned above. Filter bank multi-carrier (FBMC) is believed to be one of the most promising technologies which can be used in 5G. FBMC and OFDM are multi-carrier system. It is obvious that it agonizes from PAPR which hamper the efficiency of the system. The conventional peak reduction methods utilized in OFDM cannot be used in FBMC due to the overlapping structure of FBMC. In this work, a novel selective mapping (SLM) and partial transmit sequence (PTS) PAPR reduction technique is suggested for FBMC. The proposed techniques are implemented by using an elementary successive optimization technique that upsurge the PAPR performance and ensure the design difficulty is taken low. PAPR and bit error rate (BER) parameters are analyzed and simulated for the proposed and conventional PAPR reduction techniques. The simulation results show that the SLM and PTS accomplished an excellent PAPR reduction up to 2.8 and 4.8 dB as compared to other peak power minimization techniques.

ACS Style

Arun Kumar; Manisha Gupta. Peak-to-Average Power Ratio Reduction in FBMC Using SLM and PTS Techniques. Recent Developments in Stochastic Methods and Applications 2019, 163 -183.

AMA Style

Arun Kumar, Manisha Gupta. Peak-to-Average Power Ratio Reduction in FBMC Using SLM and PTS Techniques. Recent Developments in Stochastic Methods and Applications. 2019; ():163-183.

Chicago/Turabian Style

Arun Kumar; Manisha Gupta. 2019. "Peak-to-Average Power Ratio Reduction in FBMC Using SLM and PTS Techniques." Recent Developments in Stochastic Methods and Applications , no. : 163-183.