This paper improves energy efficiency and communications reliability for wireless transmission under $\kappa$-$\mu$ shadowed fading (i.e., integrating all channel impairments including path loss, shadowing, fading) and hardware impairment by employing a nonlinear energy harvester and multi-antenna power transmitter. To this end, this paper provides explicit formulas for outage probability. Numerous results corroborate these formulas and expose that energy-harvesting nonlinearity, hardware impairment, and channel conditions drastically deteriorate system performance. Notwithstanding, energy-harvesting nonlinearity influences system performance more severely than hardware impairment. In addition, desired system performance is accomplished flexibly and possibly by choosing a cluster of specifications. Remarkably, the proposed communications scheme obtains the optimal performance with the appropriate selection of the time-splitting factor.

Nonorthogonal multiple access (NOMA) enhances spectral efficiency by enabling manifold devices to utilize the same frequency-time resource through nonorthogonal signal superposition. In addition, full-duplex (FD) transmission allows concurrent reception and transmission on the same frequency range, further improving spectral efficiency. Moreover, nearby wireless energy sources are utilized to enhance energy efficiency. Nonetheless, several challenges are inherent in NOMA FD transmission with energy harvesting (NOFE), including information security concerns and practical imperfections such as channel state information imperfection (CSIi), hardware impairment (HWi), and successive interference cancellation imperfection (SICi). The paper first proposes a solution to address these challenges by leveraging an energy source both as an energy supplier and a jammer to secure transmission under imperfections. The performance of the proposed solution is then evaluated using three key metrics (total throughput, outage probability, energy efficiency). The study highlights the significant impact of various factors such as energy harvesting, HWi, CSIi, NOMA, SICi, and FD on the performance metrics. The proposed solution also aims to prevent complete outage by optimizing required spectral efficiency, HWi, CSIi, SICi and power splitting parameter. Additionally, optimal configuration of system parameters is crucial for achieving optimum performance metrics. Furthermore, the proposed NOFE is demonstrated to be more secured than two benchmark techniques (orthogonal multiple access FD transmission and NOMA half-duplex transmission) across numerous parameter configurations, emphasizing the superiority of utilizing concurrently both NOMA and FD to only either NOMA or FD.

Long-term evolution (LTE) and multiple input multiple output (MIMO) have earned reputations to be a cutting-edge technology, which can boost significantly wireless communication performances. The paper aims at providing LTE MIMO performances in indoor environments and, therefore, guidelines for network operators can be proposed. Medium access control throughput (MAC TP) and some system parameters in LTE network that are linked with MAC TP, such as Channel Quality Indicator (CQI), Modulation and Coding Scheme (MCS), Ranking Indicator (RI), Pre-coding Matrix Indicator (PMI), as well as MIMO utilization, are analysed. Effects of indoor propagation, Line of Sight (LoS), No-line of Sight (NLoS), strong and weak signal levels on Signal to Noise Radio (SNR) strength and MIMO utilization are clarified. In this paper, the performances of MIMO transmission mode over transmit diversity (TxDiv, Multiple Input-Single OutputMISO) and single antenna (Single Input Multiple Output-SIMO) modes are also analyzed and compared at overall manner and at channel-specific manners.

The Null Convention Logic (NCL) based asynchronous design technique has interested researchers because this technique had overcome disadvantages of the synchronous technique, such as noise, glitches, clock skew and power. However, using the NCL-based asynchronous design method is difficult for university students and researchers because of the lack of standard NCL cell libraries. Therefore, in this paper, a novel flow is proposed to design NCL cell libraries. These libraries are used to synthesize NCL-based asynchronous designs. We chose the static NCL cell library to illustrate the proposed design solution because this library is one of the most basic NCL libraries. Static NCL cells in this library are designed based on the Process Design Kit 45nm technology and are implemented by the Virtuoso and the Design Compiler (DC) tool. In addition, the Ocean script and Electronic Design Automation (EDA) environment are used for supporting designs and simulations. A complete library of 27 NCL cells was designed to serve for study and research. We also implemented synthesis for NCL full adders using this library and compared our synthesis results with the results of other authors. The comparison results indicated that our results were a 20% improvement on power consumption.