WSN中一种自适应协作MIMO传输方案!  

An adaptive cooperative MIMO transmission scheme in WSN

作　　者：周雷雷[1] 胡艳军[1] 

机构地区：[1]安徽大学计算智能与信号处理教育部重点实验室,安徽合肥230039

出　　处：《安徽大学学报（自然科学版）》2012年第2期48-54,共7页Journal of Anhui University(Natural Science Edition)

基　　金：国家自然科学基金资助项目(601071168);安徽大学"211工程"学术创新团队基金资助项目;安徽大学研究生学术创新研究基金资助项目(YQH090061)

摘　　要：针对能量受限的无线传感器网络,提出一种能量有效的自适应协作MIMO传输方案.该方案能够根据传输信息的无线信道环境和传输距离,依据总能耗最小化原则对收发端协作节点数目和调制方式进行联合优化选择,进而提高网络的能量效率.仿真结果表明:与现有的协作MIMO传输方案相比,该方案能进一步提高无线传感器网络的能量效率,在理论上具有一定的参考价值.An energy -efficiency adaptive transmission scheme was proposed for energy - constrained wireless sensor networks. The number of cooperative antennas at both the transmission and the reception sides and modulation methods were selected jointly with respect to the different transmission distances and wireless channel environment in order to minimize the total energy consumption. Compared with the existing cooperation MIMO transmission schemes, the results showed that the proposed scheme can further improve the energy efficiency of wireless sensor network and have certain reference value in theory.

关 键 词：无线传感器网络 能量效率 协同通信 

分 类 号：TN919.72[电子电信—通信与信息系统]