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蜂窝网络分布式中继选择算法
引用本文:武航,钱丽萍,陈庆章.蜂窝网络分布式中继选择算法[J].计算机科学,2016,43(8):55-59.
作者姓名:武航  钱丽萍  陈庆章
作者单位:浙江工业大学计算机科学与技术学院 杭州310023,浙江工业大学计算机科学与技术学院 杭州310023,浙江工业大学计算机科学与技术学院 杭州310023
基金项目:本文受国家自然科学基金(61379122,3),浙江省自然科学基金(LR16F010003)资助
摘    要:针对蜂窝网络中的功耗优化问题,研究了如何最小化两跳中继蜂窝网络的系统总功耗。首先根据信道传输功率的闭合表达式得到满足信道最小中断概率情况下的最优链路传输功率,然后通过使用基于Acknowledgement的分布式拍卖算法(DAA-ACK)和改进的分布式拍卖算法(IDAA)帮助用户节点选择合适的中继基站。仿真结果显示,这两种算法仅需要用户节点与邻居中继基站交换少量信息,并可通过有限次迭代快速选择出使系统总功率最小的中继节点。

关 键 词:蜂窝网络  中继选择  拍卖算法  多用户多中继
收稿时间:2015/6/25 0:00:00
修稿时间:2015/9/28 0:00:00

Distributed Relay Selection Algorithms for Cellular Networks
WU Hang,QIAN Li-ping and CHEN Qing-zhang.Distributed Relay Selection Algorithms for Cellular Networks[J].Computer Science,2016,43(8):55-59.
Authors:WU Hang  QIAN Li-ping and CHEN Qing-zhang
Affiliation:Department of Computer Science and Technology,Zhejiang University of Technology,Hangzhou 310023,China,Department of Computer Science and Technology,Zhejiang University of Technology,Hangzhou 310023,China and Department of Computer Science and Technology,Zhejiang University of Technology,Hangzhou 310023,China
Abstract:This work aims at minimizing the total transport power subject to the outage probability requirement for the dual-hop decode-forward relay cellular networks.In particular,this paper first presented the closed-form optimal total power consumed by the user node and the cooperative relay node under the constraint of the outage probability.Then,a distributed auction algorithm based on Acknowledgement(DAA-ACK) and an improved distributed auction algorithm(IDAA) were proposed to assign every user to suitable relay node.Simulation results show that every user node can find its best cooperative relay through limited message passing with neighbor relay nodes.
Keywords:Cellular networks  Relay selection  Auction algorithm  Multi-user multi-relay
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