卫星网络的协作通信技术  

Cooperative Communication for Satellite Network

作　　者：张艳[1] 胡小丽[1] 宋维君[1] 

机构地区：[1]南京信息职业技术学院,南京210046

出　　处：《电讯技术》2011年第7期81-84,共4页Telecommunication Engineering

摘　　要：分析了用于点对点和点对多点通信链路协同通信技术的使用。通过设计一个简单的中继模型来分析多节点协作通信方式。运用放大转发、解码转发协作协议,分别计算比较了链路的效率和同步性,以通过不同的中继协议来仿真中断概率与频谱效率的理论性能。仿真分析表明,完全功率分配比平均功率分配方法提高约3 dB的信噪比。The use of cooperative communication techniques for point-to-point and point-to-multipoint communication links is presented. A simplified single relay model is designed to analyse the mtdti-node scenarios. The amplify-and-forward（AF） protocol and decode-and-forward protocol are applied to compute the efficiency and synchronization of the link so that the theoretical performance of outage probability versus spectral efficiency can be simulated based on different relay protocols. The simulation analysis shows power distribution method can im- prove about 3 dB SNR than the average power allocation method.

关 键 词：卫星网络 协同通信 中继模型 放大转发 解码转发 

分 类 号：TN911[电子电信—通信与信息系统]