Intelligent reflecting surfaces (IRS) have emerged as a promising technology to enhance the performance of wireless communication systems. By actively manipulating propagation environment, IRS enables efficient signal transmission and reception. In recent years, integration with full-duplex (FD) has garnered significant attention due its potential further improve spectral energy efficiencies. I...

In this work, we investigate short-packet communications for multiple-input multiple-output underlay cognitive multihop relay networks with multiple primary users, where transceivers transmit and receive short packets to provide ultra-reliable low-latency (uRLLCs). For performance evaluation, the closed-form expressions of end-to-end (E2E) block error rate (BLER) considered systems are derived ...

Abstract This paper investigates the channel state information (CSI) conditions in visible light non-orthogonal multiple access (VL-NOMA) using power allocation technique (PA) for a sixth-generation (6G) network. One light-emitting diode (LED) is used as carrier to transmit signal three-user-positioned at certain distances. The challenge of allocating system solved PA technique. uses assign pow...

To use the spectrum efficiently, cognitive radios leverage knowledge of the channel state information (CSI) to optimize the performance of the secondary users (SUs) while limiting the interference to the primary users (PUs). The algorithms in this paper are designed to maximize the weighted ergodic sum-capacity of SUs, which transmit orthogonally and adhere simultaneously to constraints limitin...

Mobile ad hoc networks (MANETs) are selfconfiguring wireless networks that lack permanent infrastructure and are formed among mobile nodes on demand. Rapid node mobility results in dramatic channel variation, or fading, that degrades MANET performance. Employing channel state information (CSI) at the transmitter can improve the throughput of routing and medium access control (MAC) protocols for...

This paper deals with Ergodic Capacity analysis of Amplify and Forward Wireless Relay Networks (AFWRN) with Imperfect Channel State Information (ICSI). Ergodic capacity attains prime importance as it provides a limit on the achievable rate in multipath fading channel environments for AFWRN systems. However to analyze ergodic capacity Channel State Information (CSI) is essential and it is practi...

Intelligent reflecting surfaces (IRS) have recently been regarded as having potential for supporting multi-user (MU) multiple-input single-output (MISO) ultra-reliable and low-latency communication (URLLC) by creating favorable wireless links in the industrial IoT (IIoT) scenario. Hence, we studied joint robust design of a beamformer at central controller (CC) phase shifters IRS minimizing tran...

Link adaptation techniques aim at the efficient utilization of the scarce bandwidth of mobile radio links while satisfying the users’ demands. A competitive candidate for these purposes is an adaptive scheme based on the Trellis Coded Modulation (TCM) which increases the noise robustness without bandwidth expansion, in comparison with an uncoded scheme. We consider the optimum design of an adap...

An analvtic techniaue is Dresented for comwhere Q, is the channel rrain. and w, is an additive Gaus" I puting the performance of trellis coded q-ary PSK in Rayleigh fading. A contour-integral expression for the pairwise error probability (PEP) is used to define a transfer function, enabling the union bound to be evaluated exactly for the ideal CSI (channel state information) case and imperfect-...