| 认知无线传感器网络中基于GSC的协作传输机制 |
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| 引用本文： | 秦智超,周正,赵小川,章杨. 认知无线传感器网络中基于GSC的协作传输机制[J]. 通信学报, 2013, 34(9): 158-165. DOI: 10.3969/j.issn.1000-436x.2013.09.019 |
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| 作者姓名： | 秦智超 周正 赵小川 章杨 |
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| 作者单位： | 1. 北京邮电大学 泛网无线通信教育部重点实验室,北京,100876
2. 北京邮电大学 泛网无线通信教育部重点实验室，北京 100876; 中国石油大学 华东 计算机与通信工程学院，山东 青岛 266555 |
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| 基金项目： | 国家科技重大专项基金资助项目(2009ZX03006-009)；国家自然科学基金资助项目(60902046)；韩国知识经济部仁荷大学ITRC基金资助项目（NIPA-2011-C1090-1111-0007） |
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| 摘 要： | 针对无线传感器网络中单个节点能量和发射功率均受限的特点，在发送端已知信道状态信息(CSI)的条件下提出了一种基于广义选择合并算法(GSC)的协作传输机制。根据GSC算法和节点的功率受限条件来决定具体参与协作传输的节点个数，并结合信道状态和节点的剩余能量来对节点进行调度。理论分析和仿真结果表明该机制能够有效地延长网络寿命。
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| 关 键 词： | 无线传感器网络 协作OFDM 信道状态信息 广义选择合并 |
Cooperative transmission scheme based onGSC for cognitive wireless sensor network |
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| QIN Zhi-chao , ZHOU Zheng , ZHAO Xiao-chuan , ZHANG Yang. Cooperative transmission scheme based onGSC for cognitive wireless sensor network[J]. Journal on Communications, 2013, 34(9): 158-165. DOI: 10.3969/j.issn.1000-436x.2013.09.019 |
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| Authors: | QIN Zhi-chao ZHOU Zheng ZHAO Xiao-chuan ZHANG Yang |
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| Affiliation: | 1. Key Laboratory of Universal Wireless Communications,Ministry of Education,Beijing University of Posts and Telecommunications,Beijing 100876,China;2. College of Computer and Communication Engineering,China University of Petroleum,Qingdao 266555,China |
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| Abstract: | In response to the features that the sensor nodes are energy-limited and power-constrained in wireless sensor network, a cooperative transmission scheme based on general selection combine(GSC) algorithm was proposed when the channel state information (CSI) was known to the transmitter. The number of cooperative nodes was depended on the GSC algorithm subject to a power constraint at the transmitter, and these selected nodes were scheduled according to the channel sate and individual residual energy. The analysis and simulation results show that the proposed scheme can effectively prolong the network lifetime. |
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| Keywords: | wireless sensor network cooperative OFDM channel state information general selection combine |
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