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| 无线传感器网络中联合功率控制和速率调整 | |
| 引用本文： | 廖盛斌,杨宗凯,程文青,刘威,熊志强. 无线传感器网络中联合功率控制和速率调整[J]. 电子学报, 2008, 36(10): 1931-1937 |
| 作者姓名： | 廖盛斌 杨宗凯 程文青 刘威 熊志强 |
| 作者单位： | 华中师范大学教育信息技术工程研究中心,湖北武汉,430079;华中科技大学电子与信息工程系,湖北武汉,430074;华中科技大学电子与信息工程系,湖北武汉,430074 |
| 摘 要： | 无线传感器网络本质上是能量受限的,而且,传感器节点扮演着数据收集和数据转发的双重角色.本文提出了怎样分配传感器节点的功率用于转发其它节点的数据.在节点的转发功率分配比确定后,研究了采用价格作为一种方法,刺激节点与它到数据采集节点路径上的所有节点合作.通过把无线传感器网络中数据收集和传输抽象为一个网络效用最大化问题,通过采用对偶分解技术,提出了一种迭代价格与联合功率控制和速率调整的分布式算法.实验表明,该算法能提高系统的性能,同时降低功率的消耗. |
| 关 键 词： | 传感器网络 网络效用最大化 功率控制 对偶分解 |
| 收稿时间： | 2007-06-13 |
Joint Power Control and Rate Adaptation for Wireless Sensor Networks |
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| LIAO Sheng-bin,YANG Zong-kai,CHENG Wen-qing,LIU Wei,XIONG Zhi-qiang. Joint Power Control and Rate Adaptation for Wireless Sensor Networks[J]. Acta Electronica Sinica, 2008, 36(10): 1931-1937 | |
| Authors: | LIAO Sheng-bin YANG Zong-kai CHENG Wen-qing LIU Wei XIONG Zhi-qiang |
| Affiliation: | LIAO Sheng-bin1,2,YANG Zong-kai1,CHENG Wen-qing2,LIU Wei2,XIONG Zhi-qiang2 (1.Engineering , Research Center for Information Technology on Education,Huazhong Normal University,Wuhan,Hubei 430079,China,2.Department of Electronics , Information Engineering,Huazhong University of Science , Technology,Hubei 430074,China) |
| Abstract: | Wireless sensor networks(WSNs) are energy-constrained in natured,moreover,sensor nodes play the dual role of data originator and data relaying.In this paper,a novel method how to allocate the power of sensor nodes for forwarding traffic of other nodes was proposed.After forwarding power ratios of nodes are decided,we consider pricing as a mean to stimulate cooperation between a node and other nodes along its routing path to a sink node.By formulating the problem of data sensing and transport in WSNs as netw... |
| Keywords: | sensor networks network utility maximization power control dual decomposition |
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