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Dr. Navuday Sharma
Ericsson Eesti AS

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Research Keywords & Expertise

0 Wireless Applications
0 Wireless Sensor Networks (WSN)
0 Iot And Smart City
0 URLLC
0 Channel modelling

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Wireless Sensor Networks (WSN)
URLLC

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Short Biography

Navuday Sharma received his M-Tech in avionics engineering from Institute of Space Science and Technology, Amity University, Uttar Pradesh, India, in 2015 and Ph.D. degree in telecommunication engineering from the Department of Electronics, Information and Bio-engineering (DEIB), Politecnico di Milano, Italy, in 2018. He was also a Research Engineer at Infocomm Lab, School of Computer Science and Robotics, Tomsk Polytechnic University, Russia, from Oct 2017 to June 2018. Further, he has worked as a Post-Doctoral Researcher at Thomas Johann Seebeck Department of Electronics, Tallinn University of Technology, Estonia from Oct 2018 to Feb 2020. Currently, he is a RF Test Development Engineer at Ericsson Estonia. He has worked on wireless communication with aerial base stations for 5G systems and currently working towards ultra-reliable low latency communication. His other research interests are channel modeling, multi-carrier communication, digital signal processing and internet of things.

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Journal article
Published: 23 November 2020 in Sensors
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In scenarios, like critical public safety communication networks, On-Scene Available (OSA) user equipment (UE) may be only partially connected with the network infrastructure, e.g., due to physical damages or on-purpose deactivation by the authorities. In this work, we consider multi-hop Device-to-Device (D2D) communication in a hybrid infrastructure where OSA UEs connect to each other in a seamless manner in order to disseminate critical information to a deployed command center. The challenge that we address is to simultaneously keep the OSA UEs alive as long as possible and send the critical information to a final destination (e.g., a command center) as rapidly as possible, while considering the heterogeneous characteristics of the OSA UEs. We propose a dynamic adaptation approach based on machine learning to improve a joint energy-spectral efficiency (ESE). We apply a Q-learning scheme in a hybrid fashion (partially distributed and centralized) in learner agents (distributed OSA UEs) and scheduler agents (remote radio heads or RRHs), for which the next hop selection and RRH selection algorithms are proposed. Our simulation results show that the proposed dynamic adaptation approach outperforms the baseline system by approximately 67% in terms of joint energy-spectral efficiency, wherein the energy efficiency of the OSA UEs benefit from a gain of approximately 30%. Finally, the results show also that our proposed framework with C-RAN reduces latency by approximately 50% w.r.t. the baseline.

ACS Style

Muhidul Islam Khan; Luca Reggiani; Muhammad Mahtab Alam; Yannick Le Moullec; Navuday Sharma; Elias Yaacoub; Maurizio Magarini. Q-Learning Based Joint Energy-Spectral Efficiency Optimization in Multi-Hop Device-to-Device Communication. Sensors 2020, 20, 6692 .

AMA Style

Muhidul Islam Khan, Luca Reggiani, Muhammad Mahtab Alam, Yannick Le Moullec, Navuday Sharma, Elias Yaacoub, Maurizio Magarini. Q-Learning Based Joint Energy-Spectral Efficiency Optimization in Multi-Hop Device-to-Device Communication. Sensors. 2020; 20 (22):6692.

Chicago/Turabian Style

Muhidul Islam Khan; Luca Reggiani; Muhammad Mahtab Alam; Yannick Le Moullec; Navuday Sharma; Elias Yaacoub; Maurizio Magarini. 2020. "Q-Learning Based Joint Energy-Spectral Efficiency Optimization in Multi-Hop Device-to-Device Communication." Sensors 20, no. 22: 6692.

Journal article
Published: 29 April 2020 in Physical Communication
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Existing public safety networks (PSNs) are not designed to cope with disasters such as terrorist attacks, consequently leading to long delays and intolerable response times. First responders’ life threats when accessing the attacked zone are more severe in comparison to other disasters and the accuracy of basic information such as the number of terrorists, the number of trapped people, their locations and identity, etc., is vital to the reduction of the response time. Recent technologies for PSNs are designed to manage natural disaster scenarios; these are not best suited for situations like terrorist attacks because a proper communication infrastructure is required for operating most of the classical PSNs. This serious concern makes it highly desirable to develop reliable and adaptive pervasive public safety communication technologies to counter such a kind of emergency situation. Device-to-device (D2D) communication can be a vital paradigm to design PSNs that are fit for dealing with terrorist attacks thanks to long-term evolution (LTE)-sidelink, which could allow the devices that people carry with themselves in the attacked zone to communicate directly. To our best knowledge, this is the first survey paper on public safety communication in the context of terrorist attacks. We discuss PSN scenarios, architectures, 3rd generation partnership project (3GPP) standards, and recent or ongoing related projects. We briefly describe a system architecture for disseminating the critical information, and we provide an extensive literature review of the technologies that could have a significant impact in public safety scenarios especially in terrorist attacks, such as beamforming and localization for unmanned aerial vehicles (UAVs), LTE sidelink for both centralized (base-station assisted) and decentralized (without base-station) architectures, multi-hop D2D routing for PSN, and jamming and anti-jamming in mobile networks. Furthermore, we also cover the channel models available in the literature to evaluate the performance of D2D communication in different contexts. Finally, we discuss the open challenges when applying these technologies for PSN.

ACS Style

Ali Masood; Davide Scazzoli; Navuday Sharma; Yannick Le Moullec; Rizwan Ahmad; Luca Reggiani; Maurizio Magarini; Muhammad Mahtab Alam. Surveying pervasive public safety communication technologies in the context of terrorist attacks. Physical Communication 2020, 41, 101109 .

AMA Style

Ali Masood, Davide Scazzoli, Navuday Sharma, Yannick Le Moullec, Rizwan Ahmad, Luca Reggiani, Maurizio Magarini, Muhammad Mahtab Alam. Surveying pervasive public safety communication technologies in the context of terrorist attacks. Physical Communication. 2020; 41 ():101109.

Chicago/Turabian Style

Ali Masood; Davide Scazzoli; Navuday Sharma; Yannick Le Moullec; Rizwan Ahmad; Luca Reggiani; Maurizio Magarini; Muhammad Mahtab Alam. 2020. "Surveying pervasive public safety communication technologies in the context of terrorist attacks." Physical Communication 41, no. : 101109.

Conference paper
Published: 01 December 2019 in 2019 IEEE Globecom Workshops (GC Wkshps)
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The use of Unmanned Aerial Vehicles (UAVs) as Aerial Base Station (ABSs) is emerging as an effective technique to provide high capacity wireless networks to ground users. In this paper, cell coverage of a low altitude UAV is investigated for supporting such networks. An analytical framework for cell coverage area of an ABS is provided for Suburban, Urban and Urban high rise environments using a solid angle approach including radio link propagation effects in air- to-ground channel obtained from ray tracing simulations. Here, we account for the change in Euler angles such as roll, pitch and yaw due to perturbations by wind gusts or intentional maneuvers which leads to an increase in the geometrical coverage area by approximately 40-50 %, given same transmission power and antenna gain of the ABS.

ACS Style

Navuday Sharma; Vishal Sharma; Maurizio Magarini; Haris Pervaiz; Muhammad Mahtab Alam; Yannick Le Moullec. Cell Coverage Analysis of a Low Altitude Aerial Base Station in Wind Perturbations. 2019 IEEE Globecom Workshops (GC Wkshps) 2019, 1 -6.

AMA Style

Navuday Sharma, Vishal Sharma, Maurizio Magarini, Haris Pervaiz, Muhammad Mahtab Alam, Yannick Le Moullec. Cell Coverage Analysis of a Low Altitude Aerial Base Station in Wind Perturbations. 2019 IEEE Globecom Workshops (GC Wkshps). 2019; ():1-6.

Chicago/Turabian Style

Navuday Sharma; Vishal Sharma; Maurizio Magarini; Haris Pervaiz; Muhammad Mahtab Alam; Yannick Le Moullec. 2019. "Cell Coverage Analysis of a Low Altitude Aerial Base Station in Wind Perturbations." 2019 IEEE Globecom Workshops (GC Wkshps) , no. : 1-6.

Journal article
Published: 21 May 2019 in Procedia Computer Science
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The paradigm shift towards high data rate demands of mobile users in IMT-2020 commonly known as 5G, led to the possibility of using Aerial Base Stations (ABS) to fulfill such requirements. However, for implementation of ABS, an appropriate air-to-ground channel model is needed. It is an important factor to incorporate the understanding of the channel fading behavior before designing the system. In this article, we present novel channel propagation results obtained from ray tracing simulations for different environments, such as Suburban, Urban and Urban-High-Rise, according to ITU Radio-communication parameters. The details of different channel characteristics such as Spatial Correlation and Cumulative Distribution Function for Small Scale Parameters as Delay Spread and Angle-of-Arrival are presented for different ABS heights. We also focus on various channel modeling approaches and frameworks for 3D channel models.

ACS Style

Navuday Sharma; Maurizio Magarini; Luca Reggiani; Muhammad Mahtab Alam. Channel Characterization at 2.4 GHz for Aerial Base Station. Procedia Computer Science 2019, 151, 1092 -1099.

AMA Style

Navuday Sharma, Maurizio Magarini, Luca Reggiani, Muhammad Mahtab Alam. Channel Characterization at 2.4 GHz for Aerial Base Station. Procedia Computer Science. 2019; 151 ():1092-1099.

Chicago/Turabian Style

Navuday Sharma; Maurizio Magarini; Luca Reggiani; Muhammad Mahtab Alam. 2019. "Channel Characterization at 2.4 GHz for Aerial Base Station." Procedia Computer Science 151, no. : 1092-1099.

Conference paper
Published: 01 April 2019 in 2019 IEEE Wireless Communications and Networking Conference Workshop (WCNCW)
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uRLLC (ultra-Reliable Low Latency Communications) requires a new paradigm in 5G cellular networks to satisfy extreme latency and reliability thresholds. Further, such constraints have a wide range due to different use case scenarios. Consequently, how to configure suitable radio frame structure that matches to the latency and reliability requirements of the given use-case is an open question. This article addresses the above-mentioned issue and provides a preliminary investigation and a feasible solution by exploiting antenna port selection index (APSI) calculated using fuzzy logic algorithm, which is further communicated through physical uplink control channel. Closed-form expressions of outage probability for the number of users, under given latency and reliability constraints have been provided with the mathematical proof and the results were simulated based on the prior availability of APSI. It is shown that outage probability improves up to 30% in case of dynamic radio frame configuration.

ACS Style

Navuday Sharma; Muhammad Mahtab Alam; Yannick Le Moullec; Hassan Malik; Mehdi Bennis; Sven Parand. Dynamic Radio Frame Configuration by Exploiting Uplink Control Channel for URLLC. 2019 IEEE Wireless Communications and Networking Conference Workshop (WCNCW) 2019, 1 -6.

AMA Style

Navuday Sharma, Muhammad Mahtab Alam, Yannick Le Moullec, Hassan Malik, Mehdi Bennis, Sven Parand. Dynamic Radio Frame Configuration by Exploiting Uplink Control Channel for URLLC. 2019 IEEE Wireless Communications and Networking Conference Workshop (WCNCW). 2019; ():1-6.

Chicago/Turabian Style

Navuday Sharma; Muhammad Mahtab Alam; Yannick Le Moullec; Hassan Malik; Mehdi Bennis; Sven Parand. 2019. "Dynamic Radio Frame Configuration by Exploiting Uplink Control Channel for URLLC." 2019 IEEE Wireless Communications and Networking Conference Workshop (WCNCW) , no. : 1-6.

Conference paper
Published: 01 April 2019 in 2019 IEEE 89th Vehicular Technology Conference (VTC2019-Spring)
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Low altitude aerial base stations onboard unmanned aerial vehicles (UAVs) have recently gained a lot of attention to provide cellular coverage to mobile ground users. In this paper we evaluate the effect of carrier frequency offset (CFO) on the symbol error rate in the downlink of such systems, where a long-term evolution (LTE) compatible time-frequency grid based on generalized frequency division multiplexing (GFDM) is considered. The choice of GFDM as multi-carrier modulation scheme is motivated by its widely proposed application in fifth generation cellular systems and its backward compatibility with LTE. Simulation results are shown for "Better than the Nyquist (BTN)" pulse shaping filters in three different environments: Suburban, Urban and Urban High Rise. The use of BTN pulse shaping filters allows for higher robustness to CFO as compared to base line pulse shaping filer know as root-raised cosine filters for different environments conditions. Simulation results are presented considering realistic air-to-ground propagation conditions generated from the commercial Wireless InSite ray-tracing radio propagation software.

ACS Style

Navuday Sharma; Atul Kumar; Maurizio Magarini; Stefano Bregni; Dushantha Nalin K. Jayakody. Impact of CFO on Low Latency-Enabled UAV Using "Better Than Nyquist" Pulse Shaping in GFDM. 2019 IEEE 89th Vehicular Technology Conference (VTC2019-Spring) 2019, 1 -6.

AMA Style

Navuday Sharma, Atul Kumar, Maurizio Magarini, Stefano Bregni, Dushantha Nalin K. Jayakody. Impact of CFO on Low Latency-Enabled UAV Using "Better Than Nyquist" Pulse Shaping in GFDM. 2019 IEEE 89th Vehicular Technology Conference (VTC2019-Spring). 2019; ():1-6.

Chicago/Turabian Style

Navuday Sharma; Atul Kumar; Maurizio Magarini; Stefano Bregni; Dushantha Nalin K. Jayakody. 2019. "Impact of CFO on Low Latency-Enabled UAV Using "Better Than Nyquist" Pulse Shaping in GFDM." 2019 IEEE 89th Vehicular Technology Conference (VTC2019-Spring) , no. : 1-6.

Journal article
Published: 14 August 2018 in IEEE Communications Magazine
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The paradigm of previous 4G cellular technology has led to an increase in requirements for high data rate demands of mobile users in 5G. In order to meet this demand, constant densification of communication networks was required. Ultra Dense Networks (UDNs) have been proposed as a promising 5G technology to fulfill these requirements by the efficient and dynamic distribution of the radio resources. However, for implementation of UDN, mobile operators have to face many challenges such as severe interference resulting in a limited capacity due to the dense deployment of small cells, site location and acquisition for the deployment of base stations, backhauling issues, energy consumption, etc. In this article, in order to alleviate these limitations, we propose a novel idea of Ultra Dense Cloud-Drone Network (UDCDN) architecture. This scheme is featured with "on-demand" quality and substantial flexibility in terms of deployment. This anchors the challenges of traditional UDN settings and offers numerous benefits. Through simulation results of cell coverage, we verify the genuineness of implementing the proposed scheme and offer a new paradigm shift for UDN.

ACS Style

Navuday Sharma; Maurizio Magarini; Dushantha Nalin K. Jayakody; Vishal Sharma; Jun Li. On-Demand Ultra-Dense Cloud Drone Networks: Opportunities, Challenges and Benefits. IEEE Communications Magazine 2018, 56, 85 -91.

AMA Style

Navuday Sharma, Maurizio Magarini, Dushantha Nalin K. Jayakody, Vishal Sharma, Jun Li. On-Demand Ultra-Dense Cloud Drone Networks: Opportunities, Challenges and Benefits. IEEE Communications Magazine. 2018; 56 (8):85-91.

Chicago/Turabian Style

Navuday Sharma; Maurizio Magarini; Dushantha Nalin K. Jayakody; Vishal Sharma; Jun Li. 2018. "On-Demand Ultra-Dense Cloud Drone Networks: Opportunities, Challenges and Benefits." IEEE Communications Magazine 56, no. 8: 85-91.

Journal article
Published: 01 August 2018 in Physical Communication
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ACS Style

Sudheesh P G; Navuday Sharma; Maurizio Magarini; P. Muthuchidambaranathan. Effect of imperfect CSI on interference alignment in multiple-High Altitude Platforms based communication. Physical Communication 2018, 29, 336 -342.

AMA Style

Sudheesh P G, Navuday Sharma, Maurizio Magarini, P. Muthuchidambaranathan. Effect of imperfect CSI on interference alignment in multiple-High Altitude Platforms based communication. Physical Communication. 2018; 29 ():336-342.

Chicago/Turabian Style

Sudheesh P G; Navuday Sharma; Maurizio Magarini; P. Muthuchidambaranathan. 2018. "Effect of imperfect CSI on interference alignment in multiple-High Altitude Platforms based communication." Physical Communication 29, no. : 336-342.

Conference paper
Published: 01 January 2018 in 2018 15th IEEE Annual Consumer Communications & Networking Conference (CCNC)
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The 5th generation of cellular networks (5G) will provide high speed and high-availability wireless links for communication between mobile users. The usage of aerial platforms as base stations has been recently proposed to meet the above requirements, especially in densely-packed urban areas. To make an accurate prediction of the performance in such a communication system the availability of suitable channel models is a fundamental requirement. Here, we concentrate on a simple path loss and shadow fading channel model that is commonly used to describe the propagation between an aerial base station and a user on the ground. A commercial 3D ray-tracing simulator is used to extract the main parameters used in the model and the Line of Sight/Non Line of Sight probabilities as a function of the transmitter height and elevation angle. We consider three reference scenarios: Suburban, Urban and Urban High Rise generated according to ITU-R specifications. As a novel contribution, we also show simulation results for the spatial correlation of the received signal in the three considered scenarios.

ACS Style

Navuday Sharma; Maurizio Magarini; Laura Dossi; Luca Reggiani; Roberto Nebuloni. A study of channel model parameters for aerial base stations at 2.4 GHz in different environments. 2018 15th IEEE Annual Consumer Communications & Networking Conference (CCNC) 2018, 1 -6.

AMA Style

Navuday Sharma, Maurizio Magarini, Laura Dossi, Luca Reggiani, Roberto Nebuloni. A study of channel model parameters for aerial base stations at 2.4 GHz in different environments. 2018 15th IEEE Annual Consumer Communications & Networking Conference (CCNC). 2018; ():1-6.

Chicago/Turabian Style

Navuday Sharma; Maurizio Magarini; Laura Dossi; Luca Reggiani; Roberto Nebuloni. 2018. "A study of channel model parameters for aerial base stations at 2.4 GHz in different environments." 2018 15th IEEE Annual Consumer Communications & Networking Conference (CCNC) , no. : 1-6.

Proceedings article
Published: 01 August 2017 in 2017 International Symposium on Wireless Communication Systems (ISWCS)
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With the advancing 5G technology of base stations mounted on aerial platforms, such as unmanned aerial vehicles, the issue of coverage area, capacity and inter-cell interference is assuming higher importance for the cellular networks. In this paper, we follow a deterministic approach to analyze these problems using the data obtained from a commercial software for wireless electromagnetic wave propagation. We analyze the above mentioned parameters by varying the threshold of the received power. Also, we find an optimal altitude and power consumption model for an aerial base station. Simulations were carried out in three generalized environments, Suburban, Urban and Urban High Rise, developed according to ITU-R parameters. To derive these results we used an air-to-ground channel model obtained from the analysis of simulation data.

ACS Style

Daniele Giovanni Cileo; Navuday Sharma; Maurizio Magarini. Coverage, capacity and interference analysis for an aerial base station in different environments. 2017 International Symposium on Wireless Communication Systems (ISWCS) 2017, 281 -286.

AMA Style

Daniele Giovanni Cileo, Navuday Sharma, Maurizio Magarini. Coverage, capacity and interference analysis for an aerial base station in different environments. 2017 International Symposium on Wireless Communication Systems (ISWCS). 2017; ():281-286.

Chicago/Turabian Style

Daniele Giovanni Cileo; Navuday Sharma; Maurizio Magarini. 2017. "Coverage, capacity and interference analysis for an aerial base station in different environments." 2017 International Symposium on Wireless Communication Systems (ISWCS) , no. : 281-286.

Article
Published: 22 May 2017 in International Journal of Wireless Information Networks
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Reliability and precise timestamping of events that occur are two of the most important requirements for mission critical wireless sensor networks. Accurate timestamping is obtained by synchronizing the nodes to each other while reliability can be obtained by eliminating single points of failure (SPF). In this paper, we address the SPF problem of a ZigBee-based wireless sensor network by means of using multiple coordinators with different personal area network identifiers (PAN IDs). We propose a solution where members of a network switch from one coordinator to another in case of failure by changing their respective PAN ID. We verify experimentally that our solution provides gains in terms of recovery speed and, therefore, synchronization accuracy with respect to a solution proposed in the literature.

ACS Style

Davide Scazzoli; Atul Kumar; Navuday Sharma; Maurizio Magarini; Giacomo Verticale. Fault Recovery in Time-Synchronized Mission Critical ZigBee-Based Wireless Sensor Networks. International Journal of Wireless Information Networks 2017, 24, 268 -277.

AMA Style

Davide Scazzoli, Atul Kumar, Navuday Sharma, Maurizio Magarini, Giacomo Verticale. Fault Recovery in Time-Synchronized Mission Critical ZigBee-Based Wireless Sensor Networks. International Journal of Wireless Information Networks. 2017; 24 (3):268-277.

Chicago/Turabian Style

Davide Scazzoli; Atul Kumar; Navuday Sharma; Maurizio Magarini; Giacomo Verticale. 2017. "Fault Recovery in Time-Synchronized Mission Critical ZigBee-Based Wireless Sensor Networks." International Journal of Wireless Information Networks 24, no. 3: 268-277.

Conference paper
Published: 22 December 2016 in 2016 IEEE 27th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC)
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In mission critical wireless sensor networks (WSNs) accurate timestamping of the occurrence of events measured by the sensor nodes is often required together with a high degree of reliability. While precise timestamping requires synchronization of the sensor nodes, reliability is obtained by adding redundancy in all potential single point of failure nodes. In this paper, we focus on a ZigBee-based WSN using two personal area network (PAN) coordinators with different PAN identifiers (IDs) and, for this configuration, we propose a solution where if the primary PAN coordinator goes down, connections are transferred to the other by changing the PAN ID of the nodes. Our proposed solution provides significant gains in terms of recovery speed and timing synchronization accuracy in comparison to a solution that is proposed in the literature.

ACS Style

Davide Scazzoli; Atul Kumar; Navuday Sharma; Maurizio Magarini; Giacomo Verticale. A novel technique for ZigBee coordinator failure recovery and its impact on timing synchronization. 2016 IEEE 27th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC) 2016, 1 -5.

AMA Style

Davide Scazzoli, Atul Kumar, Navuday Sharma, Maurizio Magarini, Giacomo Verticale. A novel technique for ZigBee coordinator failure recovery and its impact on timing synchronization. 2016 IEEE 27th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC). 2016; ():1-5.

Chicago/Turabian Style

Davide Scazzoli; Atul Kumar; Navuday Sharma; Maurizio Magarini; Giacomo Verticale. 2016. "A novel technique for ZigBee coordinator failure recovery and its impact on timing synchronization." 2016 IEEE 27th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC) , no. : 1-5.