西安电子科技大学学报（自然科学版）2017，Vol.44Issue(4)：7-11,180,6.DOI:10.3969/j.issn.1001-2400.2017.04.002
D2D通信中最优功率分配和最佳中继选择
Optimal power allocation and optimal relay selection for D2D communication
摘要
Abstract
Cellular users can be regarded as relay nodes in cooperation with the Device-to-Device (D2D)communication so as to lower the cost,improve spectrum efficiency and solve the problems of network coverage,as well as improving service quality.In this paper an optimal power allocation and optimal relay selection algorithm based on network coding is proposed for using cellular users in the bidirectional relay nodes system.By fixing the total power of the D2D link to be transmitted,this algorithm optimizes the transmission power of each node,and selects the relay node which can maximize the channel capacity of the D2D link as the best relay node.Simulation results show that compared with other protocols,the proposed protocol can significantly improve the channel capacity of the D2D link.关键词
终端直通/功率/中继/信道容量Key words
device-to-device/power/relay/channel capacity分类
信息技术与安全科学引用本文复制引用
郭漪,吕昱萱,刘刚,杨世勇..D2D通信中最优功率分配和最佳中继选择[J].西安电子科技大学学报（自然科学版）,2017,44(4):7-11,180,6.基金项目
国家科技重大专项资助项目(2013ZX03003013-005) （2013ZX03003013-005）
陕西省工业科技攻关资助项目(2016GY-084) （2016GY-084）
国家自然科学基金资助项目(61671346,61372067,61001128,61301135) （61671346,61372067,61001128,61301135）
国家863计划资助项目(2014AA01A704) （2014AA01A704）
