卫星通信系统的协同通信策略研究  

Analysis of Cooperative Communication Strategy in Satellite Communication System

作　　者：昌纪师[1] 成文婧[2] 马东堂[2] 

机构地区：[1]中国卫星海上测控部,江苏江阴214431 [2]国防科学技术大学,湖南长沙410073

出　　处：《现代电子技术》2010年第23期63-66,共4页Modern Electronics Technique

摘　　要：提出了一种新的基于卫星通信系统的协同通信策略,利用两个协同中继进行Alamouti空时编码协同发送来提高系统的可靠性。该策略利用信道状态信息来解决何时协同和同谁协同的问题。仿真结果验证了该策略的有效性,并证明了在相同的星地链路下,同直接传输相比,该策略能够通过分集增益有效提高系统的BER性能。A cooperative communication strategy based on satellite communication system is proposed, which uses two cooperative relays to transmit the signal with Alamouti STC in order to improve the transmission reliability. This strategy utilizes the CSI to solve the problems： when to cooperate and with whom to cooperate. The simulation results prove that the strategy is valid and can improve the BER performance through diversity gain in the same satellite-to-surface link, compared with the direct transmission.

关 键 词：卫星通信 协同通信 空时编码 协同策略 

分 类 号：TN927.2[电子电信—通信与信息系统]