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针对多用户环境下的协同网络编码系统,提出了一种最优伙伴选择算法,该算法考虑了协作伙伴间能够正确解码彼此信息的要求,选出了能够进行协作的用户集合,然后根据协作伙伴与目的地获得最大信道增益从集合中选择出最优的协作伙伴,通过对系统的中断概率的分析,最终得到了最优伙伴选择协同网络编码系统中断概率的概率数学模型。数值分析结果表明,该方案能够有效的降低系统的中断概率。
For the collaborative network coding system under multi-user environment, an optimal partner selection algorithm is proposed, which takes into account the requirements of partners to correctly decode each other’s information, selects the users that can collaborate, and then selects the partners according to the cooperation partner And the destination to obtain the maximum channel gain from the set to select the best partner, through the analysis of the system’s interrupt probability, and finally get the optimal partner selection collaborative network coding system probability of failure probability mathematical model. Numerical analysis results show that this scheme can effectively reduce the system outage probability.