唐菁敏, 杨孟, 曹金石, 龙华, 张春平. 随机分布多跳协作分集系统中断性能研究[J]. 云南大学学报(自然科学版), 2014, 36(1): 21-25. doi: 10.7540/j.ynu.20120720
引用本文: 唐菁敏, 杨孟, 曹金石, 龙华, 张春平. 随机分布多跳协作分集系统中断性能研究[J]. 云南大学学报(自然科学版), 2014, 36(1): 21-25. doi: 10.7540/j.ynu.20120720
TANG Jing-min, YANG Meng, CAO Jin-shi, LONG Hua, ZHANG Chun-ping. Research on the outage performance of Random distribution Multi-hop cooperative diversity system[J]. Journal of Yunnan University: Natural Sciences Edition, 2014, 36(1): 21-25. DOI: 10.7540/j.ynu.20120720
Citation: TANG Jing-min, YANG Meng, CAO Jin-shi, LONG Hua, ZHANG Chun-ping. Research on the outage performance of Random distribution Multi-hop cooperative diversity system[J]. Journal of Yunnan University: Natural Sciences Edition, 2014, 36(1): 21-25. DOI: 10.7540/j.ynu.20120720

随机分布多跳协作分集系统中断性能研究

Research on the outage performance of Random distribution Multi-hop cooperative diversity system

  • 摘要: 针对解码转发(DF)多跳分集系统不能满足空间满分集和通信终端移动性不足的问题,构造了一种随机分布中继多跳协作分集系统模型.根据模型提出新的改进的选择性解码转发(SDF)算法,推导了在高信噪比条件下选择解码转发(SDF)中继系统的中断概率近似表达式.仿真结果表明在随机分布多跳协作分集系统中,SDF较DF相比能够有效提高此系统的传输可靠性,并能获得空间满分集增益.同时,得出此通信系统性能随着中继选择区域覆盖半径的增加而有所改善.

     

    Abstract: In order to achieve full space diversity gain and improve communication terminal mobility for decoding forward (DF) multi-hop diversity system,the multi-hop cooperative diversity system model with a randomly distributed relay is designed.We propose an improved selectivity decoding forwarding (SDF) algorithm according to the model,and derive approximate expression of outage probability for select decode forward (SDF) relay system in the high SNR.Simulation results show that the SDF can effectively improve transmission reliability of the system and achieve the full space diversity gain compared with DF.Meanwhile,we can obtain that the performance of this communication system get better with the coverage radius of relay selection area increased.

     

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