Performance Analysis of Full Duplex Bidirectional Machine Type Communication System Using IRS with Discrete Phase Shifter

Velmurugan, Periyakarupan Gurusamy Sivabalan; Thiruvengadam, S. J.; Kumaravelu, Vinoth Babu; Saravanakumar, R.; Parameswaran, Roshini; Imoize, Agbotiname Lucky

doi:10.3390/app13127128

Cited by 2 publications

(1 citation statement)

References 36 publications

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“…A selection combining strategy was used at the destination to study the impact of changing several design parameters on the secrecy outage performance. The performance of a full duplex (FD) bidirectional machine type communication (MTC) system was studied in [54], considering a passive intelligent reflecting surface (IRS) to achieve a reliable communication. Tight-form expressions of OP and BER were derived and verified using Monte Carlo simulations for the considered system model with a continuous phase shifter.…”

Section: Introductionmentioning

confidence: 99%

Best Relay Selection Strategy in Cooperative Spectrum Sharing Framework with Mobile-Based End User

et al. 2023

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In this work, a cognitive relay network (CRN) with interference constraint from the primary user (PU) with a mobile end user is studied. The proposed system model employs a half-duplex transmission between a single PU and a single secondary user (SU). In addition, an amplify and forward (AF) relaying technique is employed between the SU source and SU destination. In this context, the mobile end user (SU destination) is assumed to move at high vehicular speeds, whereas other nodes (SU Source, SU relays and PU) are assumed to be stationary. The proposed scheme dynamically determines the best relay for transmission based on the highest signal-to-noise (SNR) ratio by deploying selection combiner at the SU destination, thereby achieving diversity. All channels connected with the stationary nodes are modelled using Rayleigh distribution, whereas all other links connected with the mobile end user are modelled using Nakagami-m fading distribution (m<1). The outage probabilities (OPs) are obtained considering several scenarios and Monte Carlo simulation is used to verify the numerical results. The obtained results show that a variety of factors, including the number of SU relays, the severity of the fading channels, the position of the PU, the fading model, and the mobile end user speed, might influence the CRN’s performance.

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Section: Introductionmentioning

confidence: 99%

Best Relay Selection Strategy in Cooperative Spectrum Sharing Framework with Mobile-Based End User

et al. 2023

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Blind reconfigurable intelligent surface-aided fixed non-orthogonal multiple access for intelligent vehicular networks

Kumaravelu,

Selvaprabhu,

Han

et al. 2023

J Wireless Com Network

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In intelligent vehicular networks, vehicles should be able to communicate with their surroundings while traveling. This results in more efficient, safer, and comfortable driving experiences, as well as new commercial prospects in a variety of industries. Connected vehicles and autonomous vehicles expect 100% reliable connectivity without any compromise in quality. However, due to challenges such as difficult channel terrains in urban scenarios and dead zones, the reliability of current vehicle-to-infrastructure (V2I) and vehicle-to-vehicle communication systems cannot be guaranteed. The performance of vehicular networks can be considerably enhanced with reconfigurable intelligent surfaces (RIS). Non-orthogonal multiple access (NOMA) allows for massive connectivity with the surroundings. In vehicular networks, the RIS-assisted NOMA can ensure regulated channel gains, better coverage, throughput, and energy efficiency. In this work, a blind RIS-assisted fixed NOMA (FNOMA) system is proposed for a downlink V2I scenario. The closed-form analytical outage probability and throughput expressions are derived by considering RIS as an intelligent reflector and as a roadside unit. It is observed that the analytical and Monte Carlo simulation results are closely related. In simulations, it has been discovered that RIS-assisted FNOMA outperforms the traditional NOMA variants in terms of outage and throughput. Even without precise channel knowledge, blind RIS transmission outperforms traditional NOMA variants due to huge array gain. The increase in the number of reflective elements also results in a significant improvement in signal-to-noise ratio gains.

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Performance Analysis of Full Duplex Bidirectional Machine Type Communication System Using IRS with Discrete Phase Shifter

Cited by 2 publications

References 36 publications

Best Relay Selection Strategy in Cooperative Spectrum Sharing Framework with Mobile-Based End User

Best Relay Selection Strategy in Cooperative Spectrum Sharing Framework with Mobile-Based End User

Blind reconfigurable intelligent surface-aided fixed non-orthogonal multiple access for intelligent vehicular networks

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