基于中断概率和差分信道质量指示信息的头节点选择算法  

Head node selection algorithm based on outage probability and differential channel quality indication information

作　　者：何维[1] 余攀[1] 唐彦楠 

机构地区：[1]重庆邮电大学移动通信技术重庆市重点实验室,重庆400065

出　　处：《重庆邮电大学学报（自然科学版）》2015年第5期602-607,共6页Journal of Chongqing University of Posts and Telecommunications(Natural Science Edition)

基　　金：国家重大科学仪器设备开发专项(2012YQ20022404);重庆市自然科学重点基金(CSTC2013jj B40001)~~

摘　　要：针对蜂窝短距离通信系统中用户头节点的选择性问题,提出基于中断概率和差分信道质量指示信息的头节点选择算法。算法利用了指数分布的功率增益和条件概率选出中断概率较小的用户;结合了协作小区反馈的信道质量指示信息进行差分比较;选出了小区间干扰最小的用户。理论分析和仿真结果表明,算法所选用户中断概率小,且吞吐量增加。利用所提算法进行蜂窝短距离通信系统中用户头节点选择,能提升系统通信性能。Considering the selective problem of UE head nodes in cellular short range communication system,the paper proposes the head node selection based on outage probability and differential channel quality indication information algorithm. First,the exponential distribution of power gain and conditional probability are utilized to choose users with lower outage probability. Then we conduct differential comparison according to the channel quality indication information from the collaborative community feedback. Finally the best head node is obtained by the proposed algorithm. Theory analysis and simulation results demonstrate that the selected users with low outage probability and throughput will gain a certain improvement. The proposed algorithm can effectively improve communication performance.

关 键 词：蜂窝短距离通信系统 中断概率 差分信道质量指示信息 

分 类 号：TN929.53[电子电信—通信与信息系统]