Average BER of multi-hop wireless channel and its diversity systems in Rayleigh fading channel
Weijun Cheng · Journal of Chongqing University of Posts and Telecommunications · 2004
Based on the concept of wireless relaying, this paper investigates multi-hop wireless channel and its two simple diversity systems; the multi-hop and multi-route diversity systems. Their expressions of average BER for BPSK of non-regenerative relaying and regenerative relaying are derived in flat Rayleigh fading channel respectively. Numerical analysis results and simulations show good agreements. The performance of multi-hop channel and multi-hop diversity system is degraded as the number of hops increases. The performance of multi-route diversity system is improved as the number of routes increases. The performance of non-regenerative relaying is superior to that of regenerative relaying at low average signal noise ratio (SNR), but the performance of the both is similar at high average SNR.