Research on the outage performance of Random distribution Multi-hop cooperative diversity system
Tang Jing-mi · Yunnan Daxue xuebao. Shehui kexue ban · 2014
In order to achieve full space diversity gain and improve communication terminal mobility for decoding forward(DF) multi-hop diversity system,the multi-hop cooperative diversity system model with a randomly distributed relay is designed.We propose an improved selectivity decoding forwarding(SDF) algorithm according to the model,and derive approximate expression of outage probability for select decode forward(SDF) relay system in the high SNR.Simulation results show that the SDF can effectively improve transmission reliability of the system and achieve the full space diversity gain compared with DF.Meanwhile,we can obtain that the performance of this communication system get better with the coverage radius of relay selection area increased.