摘要
针对卫星移动通信信道具有复杂时变衰落的特点,提出了将协作通信技术引入卫星系统,从而达到抗衰落、获取分集增益的目的。具体给出了卫星与用户之间彼此协作的模型,且仿真了卫星相互协作时系统的误码率曲线。仿真结果表明,协作通信会降低系统误码率,并带来显著的性能增益。
In light of wide range signal changes in the mobile satellite channel, the cooperative communication technology is introduced into the satellite communication to obtain better anti-fading performance and higher diversity gain. The paper proposes the models of the cooperation between satellites and the models of the cooperation between users. The system bit error rate performance when cooperation occurs between satellites is simulated, which shows that the proposed cooperation scheme decreases the bit error rate and the system performance is improved obviously.
出处
《电子科技》
2014年第8期90-93,共4页
Electronic Science and Technology
关键词
协作通信
协作策略
分集增益
卫星通信系统
cooperative communication
cooperative strategy
diversity gain
satellite mobile communication
