In this article, we explore the communication performance of vehicle-to-vehicle (V2V) networks assisted by a reconfigurable intelligent surface (RIS) and a simultaneous transmitting and reflecting intelligent omni-surface (STAR-IOS) under non-orthogonal multiple access (NOMA) and orthogonal multiple access (OMA) schemes. In particular, we consider that the RIS is close to the transmitter vehicle while the STAR-IOS is near the receiver vehicles. In addition, it is assumed that the STAR-IOS exploits the energy-splitting (ES) protocol for communication and the fading channels between the RIS and STAR-IOS follow composite Fisher-Snedecor $\mathcal {F}$ distribution. Under such assumptions, we first use the central limit theorem (CLT) to derive the PDF and the CDF of equivalent channels at receiver vehicles, and then, we derive the closed-form expression of outage probability (OP) under NOMA/OMA scenarios. Additionally, by exploiting Jensen's inequality, we propose an upper bound of the ergodic capacity (EC) and subsequently develop an analytical expression of the energy efficiency (EE) for both NOMA and OMA cases. Further, our analytical results, which are double-checked with the Monte-Carlo simulation, reveal that applying RIS/STAR-RIS in V2V communications significantly enhances the communication performance of intelligent transportation systems (ITS). Besides, the results indicate that considering the NOMA scheme provides better performance in terms of the OP, EC, and EE as compared with the OMA case for the considered V2V communication system.


    Access

    Download


    Export, share and cite



    Title :

    Performance Analysis of RIS/STAR-IOS-Aided V2V NOMA/OMA Communications Over Composite Fading Channels


    Contributors:

    Published in:

    Publication date :

    2024-01-01


    Size :

    858695 byte




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    Performance Analysis of NOMA-Based Cooperative Relay Systems over Hoyt Fading Channels

    Panic, Stefan R. / Jayakody, Dushanta Nalin K. | IEEE | 2019


    Outage Performance of Active RIS in NOMA Networks over Nakagami-m Fading Channels

    Song, Meiqi / Yue, Xinwei / Ouyang, Chongjun et al. | IEEE | 2023


    Downlink NOMA in Multi-UAV Networks over Bivariate Rician Shadowed Fading Channels

    Tan, Zheng Hui Ernest / Madhukumar, A. S. / Sirigina, Rajendra Prasad et al. | IEEE | 2019



    Low-Complexity Joint User and Power Scheduling for Downlink NOMA Over Fading Channels

    Kim, Do-Yup / Jafarkhani, Hamid / Lee, Jang-Won | IEEE | 2021