计算机技术与发展2016，Vol.26Issue(10)：6-10,5.DOI:10.3969/j.issn.1673-629X.2016.10.002
基于功率分配与中继选择联合优化的协作MAC
A Cooperative MAC Based on Joint Optimization of Power Allocation and Relay Selection
摘要
Abstract
As the under-utilization channel condition and low power allocation resource utilization of traditional relay selection algorithm, a relay selection and power allocation algorithm based on the channel state information is proposed to minimize the transmission power for Decode-and-Forward ( DF) cooperative wireless sensor networks. Power is optimally allocated to source and relay nodes with the objec-tive of minimizing the total transmission power under the limit of maximum transmitted power,the average bit error rate and maximum channel Signal-to-Noise Ratio (SNR),and relay is selected according to the transmission distance and the corresponding energy con-sumption. The simulation and comparison between OcoopMAC ( Optimal wireless sensor network cooperative MAC) and existing MAC protocol are made by using the lifetime as the key performance indicators. Results verify that OcoopMAC significantly improves network performance.关键词
协作通信/MAC协议/功率分配/中继选择/生命周期Key words
cooperative communication/MAC protocol/power allocation/relay selection/lifetime分类
信息技术与安全科学引用本文复制引用
喻超,芮雄丽,曹雪虹..基于功率分配与中继选择联合优化的协作MAC[J].计算机技术与发展,2016,26(10):6-10,5.基金项目
江苏省普通高校研究生科研创新计划基金项目(CXZZ120475) （CXZZ120475）
