Performance Analysis of Vehicle-to-Vehicle Communication System in the Internet of Vehicle under n-Rayleigh Fading Channels

doi:10.3969/j.issn.1671-1122.2014.12.014

Abstract

Abstract: The average symbol error probability (ASEP) and channel capacity of vehicle-to-vehicle communication system employing election combining (SC) receiving under n-Rayleigh fading channels is investigated in this paper. Based on the integral approach, the exact form expressions of the average symbol error probability are derived for M-ary phase shift keying (MPSK) and M-ary pulse amplitude modulation (MPAM). The exact form expressions of ergodic capacity are also presented. Then the ASEP and channel capacity performance under different conditions is respectively evaluated through numerical simulations. The numerical simulations results coincide with the theoretical results well, and the accuracy of the analytical results is verified. Simulation results show that: the ASEP and channel capacity performance can be improved with the increase of the number of diversity branches, when SNR=16dB, the diversity branches L=1, the ASEP with QPSK is 7×10^-2, the channel capacity is 4bps/Hz; the diversity branches L=2, the ASEP with QPSK is 1×10^-2, the channel capacity is 5.1bps/Hz; the diversity branches L=3, the ASEP with QPSK is 2×10-3, the channel capacity is 5.8bps/Hz.

Key words: Internet of vehicles, selection combining, n-Rayleigh fading channels, average symbol error probability, channel capacity

CLC Number:

TP309

XU Ling-wei, ZHANG Hao, WANG Jing-jing, WU Chun-lei. Performance Analysis of Vehicle-to-Vehicle Communication System in the Internet of Vehicle under n-Rayleigh Fading Channels[J]. 信息网络安全, 2014, 14(12): 65-70.

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