matlab实现16QAM调制解调 matlab实现16QAM调制解调-ALLIANCES is a recently proposed cooperative random access

protocol for wireless networks. In this paper we modify the

original model to include user location information. We also

derive pair-wise error probability (PEP) under Rayleigh flat

fading channel and a power-law attenuation environment.

Based on the PEP analysis we propose an optimal relay

selection scheme, which achieves significant throughput gains as

compared to the random relay selection scheme in the original

ALLIANCES.