| 基于功率最优化分配的选择性协作通信模式 |
| |
| 引用本文： | 张超,廖晓光,王卫东,卫国.基于功率最优化分配的选择性协作通信模式[J].中国科学技术大学学报,2010,40(4). |
| |
| 作者姓名： | 张超 廖晓光 王卫东 卫国 |
| |
| 作者单位： | 中国科学技术大学电子工程与信息科学系,无线网络通信安徽省重点实验室,安徽合肥,230027 |
| |
| 基金项目： | 国家重点基础研究发展规划(973计划)，Intel大学研究计划 |
| |
| 摘 要： | 对于资源受限的无线网络,协作通信技术被认为是一种能够有效提高传输功率效率的空间分集技术.为了解决协作通信会引入由于中继节点运行和中继处理带来的额外功率这一难题,提出了一种功率效率最优的选择性协作通信模式,既能满足通信链路的设计要求,又只在必要的时候引入协作机制.在误符号率受限和节点最大功率受限的条件下,给出了源节点和中继节点最优的功率分配,然后选择功率效率最大的传输模式.计算机仿真说明,提出的选择性协作通信模式比传统的协作通信模式具有更高的功率效率.
|
| 关 键 词： | 协作通信 功率效率 中继选择 |
Selective cooperative communication based on power optimal allocation |
| |
| ZHANG Chao,LIAO Xiaoguang,WANG Weidong,WEI Guo.Selective cooperative communication based on power optimal allocation[J].Journal of University of Science and Technology of China,2010,40(4). |
| |
| Authors: | ZHANG Chao LIAO Xiaoguang WANG Weidong WEI Guo |
| |
| Institution: | ZHANG Chao,LIAO Xiaoguang,WANG Weidong,WEI Guo(Department of Electronic Engineering , Information Science,USTC,Hefei 230027,China) |
| |
| Abstract: | Cooperative communication is considered as a power-efficient technology for resource-constraint wireless networks.However,its gains often come at a price in terms of extra power consumption for relay running and relaying processing.A new selective cooperative scheme was proposed to satisfy an overall performance requirement so that cooperation is only invoked when necessary.Optimal power allocations under overall symbol-error-rate(SER) constraint and maximum power limit were derived for cooperative schemes.... |
| |
| Keywords: | cooperative communication power-efficiency relay selecting |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
