中文摘要：

多址接入中继信道是含有多个接入节点、1个中继节点和1个目的接收节点的无线多用户信道，同时考虑接入节点之间能够接收彼此含噪的广义反馈信息，此种模型存在于接入节点之间协作通信能力较差的多跳无线网络和无线传感器网络。论文给出了带有此种广义反馈的离散无记忆多址接人中继信道的可达速率区域，并将这一结果推广到高斯信道。提出一个新的编码方案，主要基于速率划分和译码前传策略，并通过采用分组Markov叠加编码建立各接入源节点之间以及源节点和中继节点之间的协作通信，在可达性证明中还采用规则编码和反向译码策略。结果表明，在离散无记忆信道环境下可达速率区域相比较以往结果更具一般性，在高斯信道环境下可达速率区域被扩展。

英文摘要：

The multiple-access relay channel is a model where multiple sources communicate with a single destination in the presence of a relay node. Simultaneously, we also consider that each source receive message （ namely generalized feed- back） from the other source. Examples of such networks include hybrid wireless sensor and multi-hop networks, where co- operation between the nodes is either undesirable or not possible, but one can use a relay node to aid communication be- tween the sources and the destination. Achievable rate regions for the discrete memoryless multiple access relay channel with generalized feedbacks were derived and it can be also extended to Gaussian channels. Coding scheme based on rate splitting and decode-forward strategies was proposed. Cooperations between the two sources and between source and relay via block Markov superposition encoding enhance communication efficiency. Regular encoding and backward decoding were also in- cluded in this new coding scheme. The results show that the derived achievable region results are more general than previ- ously known results including them as special cases. Furthermore over Gaussian channels, achievable region is expanded.