This paper studies the performance of intelligent reflecting surface (IRS)-aided short-packet non-orthogonal multiple access (NOMA) systems under perfect and imperfect successive interference cancellation. Closed-form expressions for average block error rate (BLER) with random optimal phase shifts are derived. To gain some useful insights, an asymptotic analysis is carried out, based on which diversity achieved. Numerical results show that, at high signal-to-noise ratio, users shift achieve...

The rapid advances in the Internet of Things (IoT) have promoted a revolution communication technology and offered various customer services. Artificial intelligence (AI) techniques been exploited to facilitate IoT operations maximize their potential modern application scenarios. In particular, convergence AI has led new networking paradigm called Intelligent (IIoT), which significantly transform businesses industrial domains. This paper presents comprehensive survey IIoT by investigating...

In this article, we propose a cooperative nonorthogonal multiple access (NOMA)-enabled simultaneous wireless information and power transfer (SWIPT) Internet of Things (IoT) networks, where one source harvests energy from multiantennas beacon (PB) to serve two IoT users via the help energy-limited relay nodes. To improve performance far user, reactive proactive selection protocols together with time-power harvesting mechanism under imperfect successive interference cancellation. Closed-form...

In this article, we study wireless-powered cognitive nonorthogonal multiple access (NOMA) Internet of Things (IoT) networks with short-packet communications to improve spectrum utilization and sustainability, as well reduce the latency under imperfect channel state information (CSI) successive interference cancelation (SIC). For performance evaluation, closed-form expressions for block error rate (BLER) NOMA users, goodput, energy efficiency, latency, reliability are derived. To gain some...

In this article, we study novel wireless powered cognitive nonorthogonal multiple access (NOMA)-based Internet-of-Things (IoT) relay networks to improve the performance of a cell-edge user under perfect and imperfect successive interference cancelation (SIC). secondary networks, source node communicates with cell-center via direct link through assistance master IoT radio constraint. Exact closed-form analytical expressions for outage probability (OP) NOMA users overall system throughput are...

In this paper, we investigate an underlay cognitive non-orthogonal multiple access (NOMA)-based coordinated direct and relay transmission network with imperfect successive interference cancellation, channel state information, co-channel caused by a multi-antenna primary transmitter. the secondary network, source communicates near user via link far through assistance of relays subject to transmit power constraints. Four selection schemes are proposed enhance performance NOMA users overall...

In this letter, a cooperative underlay cognitive non-orthogonal multiple access (NOMA)-based coordinated direct and relay transmission is investigated. Specifically, exact closed-form expressions for the outage probabilities (OPs) of primary SNs are derived, based on which respective asymptotic analysis carried out. Our results show superiority proposed system when compared with conventional schemes. Also, it shown that there exists an optimal point where transmit powers STs can be set in...

In this article, we investigate power beacon (PB)-assisted wireless-powered nonorthogonal multiple access (NOMA) Internet-of-Things (IoT)-based systems, where all transmitters harvest energy from a PB to transmit their signals destination by employing time-splitting mechanism. order utilize spectral efficiency and enhance the quality of service an edge user (EU), cellular base station can communicate with EU thank help one IoT node in network NOMA protocol. To characterize performance...

In this paper, we propose short-packet communications (SPCs) with non-orthogonal multiple access (NOMA) for coordinated and direct relay transmission (CDRT) Internet-of-Things (IoT) networks to enhance spectrum utilization system performance. system, a source transmits its packets near IoT user via far selective relaying under practical conditions of imperfect successive interference cancellation cochannel interference. We derive the closed-form asymptotic expressions average...

This paper analyzes the performance of simultaneous transmitting and reflecting (STAR) reconfigurable intelligent surface (RIS)-enabled short-packet non-orthogonal multiple access (NOMA) systems. A mode-switching protocol combined with partition strategies (MSPS) for STAR-RIS design is proposed to simultaneously serve actuators along discrete phase-shift alignment in order reduce implementation costs. Approximate asymptotic closed-form expressions average block error rate (BLER) achievable...

A novel partial decode-and-amplify non-orthogonal multiple access-inspired relaying (PDANR) protocol is proposed for uplink cooperative short-packet communication systems. Closed-form expressions the average block-error-rate (BLER) of two cell-edge users are derived, based on which an asymptotic BLER expression deduced to reveal valuable engineering insights into system design, including transmit power and number antenna settings at a relay base station. Compared conventional...

This letter studies an Internet-of-Things (IoT)-based coordinated direct and relay transmission (CDRT) adopting non-orthogonal multiple access (NOMA), where information source directly communicates with a strong user while weak needs the help of IoT master node. Different from traditional NOMA-CDRT systems, in which NOMA protocol is only deployed at to serve users, proposed novel system, i.e., IoT-assisted NOMA-CDRT, have two stages: (1) transmits data users (2) node operating as decode...

This article investigates the outage performance of a wireless powered cooperative nonorthogonal multiple access-based coordinated direct and relay transmission (CDRT) Internet-of-Things (IoT) network with simultaneous information power transfer capable IoT master node. A method to remedy high situation near user by exploiting from earlier communication phase is proposed analyzed. The competency this closed form probability for users under practical variations, such as imperfect successive...

This paper investigates reconfigurable intelligent surface (RIS)-aided cognitive non-orthogonal multiple access (NOMA) systems, where an RIS is deployed to serve two users under multi-primary users' constraints. Our analysis assumes imperfect channel state information and successive interference cancellation scenarios with without line-of-sight (LoS) link between source users. We derive exact closed-form expressions for the outage probability, throughput, upper bound ergodic capacity (EC)....

This letter investigates the effects of imperfect channel state information (CSI) for incident channels and discrete phase-shift design on performance full-duplex two-way communication-based reconfigurable intelligent surface (RIS) systems. In order to characterize system performance, approximate asymptotic expressions outage probability (OP) ergodic capacity (EC) are derived. Relying these analyses, diversity order, slope, some valuable technical insights regarding trends also deduced....

Optical wireless networks, particularly free-space optical (FSO) in outdoor environments and visible light communication (VLC) indoor environments, suffer from severe deterioration signal quality due to various factors such as the availability of line-of-sight link, turbulence atmosphere, or pointing errors. To enable high-quality service point-to-point transmission through communication, an efficient reliable backhaul link is essential. Towards this objective, paper proposes a novel...

This paper proposes the joint use of caching and simultaneous wireless information power transfer (SWIPT) to enhance performance cell-edge users down-uplink simultaneously transmitting reflecting reconfigurable intelligent surface (STAR-RIS)-empowered non-orthogonal multiple access (NOMA) systems. The main idea is leverage available at nearby establish cooperative communication while taking into account problem energy issues through SWIPT mechanisms, namely time-switching (TS)...

This paper investigates a cooperative short-packet non-orthogonal multiple access-based relay-sharing system, in which common relay node assists the communication of two source-destination pairs. Aiming at reducing complexity design and transmission latency, novel relaying protocol, is composed fewer encoders decoders than decode-and-forward (DF) proposed. Accordingly, approximate asymptotic expressions for end-to-end average block error rates (BLERs) are derived, numerical results show...