关键词: 时变, 协作通信网络, 分布式编码, 功率分配

Abstract:

Considering the channel time variant property in cooperative communication networks, a new system scheme is designed based on the system error probability. According to the encoding function, the error correct code with optimal hamming distance is chose for different channel in order to minimize the system error probability. Furthermore, the time variant power allocation algorithm is used to allocate the transmit power between the source node and relay node. Analysis and simulate show that the proposed scheme can obtain 07 dB improvement in frame error rate.

Key words: time variant, cooperative communication networks, distribute coding, power allocation