Abstract
Reconfigurable Intelligent Surface (RIS) enables precise modulation and directional transmission of signals by controlling the phase and amplitude of electromagnetic waves, thus solving the problems of signal fading, multipath effects, and interference faced by conventional wireless communication systems. In this paper, the RIS-assisted vehicle-to-vehicle (V2V) communication system under multipath interference was proposed, and the precise approximation for RIS-assisted V2V communication under Nakagami-m channels was derived in detail. Then, a comprehensive analysis of the key performance metrics of the system was performed, and analytical expressions for the outage probability, average bit error rate (BER), and average channel capacity were obtained thoroughly. We also validate all the analytical results through simulations. Furthermore, through comparative analysis, it is evident that increasing the number of RIS reflecting elements and optimizing the communication channel environment can significantly reduce the outage probability, average BER, increase the average channel capacity, and mitigate the impact of interference sources on the system.
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