Problems for designing reliable transmission strategy in Ad hoc networks must be considered because the nodes are usually run in battery-operated with limited energy, the higher wireless link reliability failure, etc. This paper presents a reliable relay multicast method based on network coding, this method allows part of the receivers playing the role of the source in the form of relaying, to perform the task of transmission to other receivers with higher link failure.Theoretical analysis and numerical results show that the proposed method is feasible, and to some extent improves the Ad hoc networks for multicast transmission, extends the network lifetime.%无线自组织网络由于节点能量受限、无线链路可靠性较差等特性使得在设计数据可靠传输方案时必须考虑上述问题.提出了一个无线自组织中基于网络编码的可靠中继多播方案,本方案让一部分接收节点担当信源节点的发送任务,以中继的形式完成链路失效率较高的节点的传输.理论分析和数值分析结果表明,所提出的方案是可行的,在一定程度上提高了无线自组织网络的多播传输效率,延长了网络的生存时间.
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