| 基于空时分组码的无线传感网协同传输系统的节能方法 |
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| 引用本文： | 俞杰,陈惠民,金彦亮. 基于空时分组码的无线传感网协同传输系统的节能方法[J]. 上海大学学报(自然科学版), 2007, 13(6): 696-698 |
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| 作者姓名： | 俞杰 陈惠民 金彦亮 |
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| 作者单位： | 上海大学,通信与信息工程学院,上海,200072;上海大学,通信与信息工程学院,上海,200072;上海大学,通信与信息工程学院,上海,200072 |
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| 基金项目： | 上海市科委资助项目;上海市重点学科建设项目 |
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| 摘 要： | 研究了基于空时分组码的无线传感网协同传输系统节能传输的方法，提出了无线传感网单传输系统和基于空时分组码的协同传输系统性能的比较准则.针对无线传感器网络能源受限的特点，计算协同传输系统最优发射功率的门限电平.仿真结果表明，该门限电平在满足系统一定中断概率的条件下可以使无线传感器网络总传输功率达到最小.
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| 关 键 词： | 无线传感器网络 协同传输 空时分组编码 中断概率 |
| 文章编号： | 1007-2861（2007）06-0696-03 |
| 收稿时间： | 2006-09-29 |
| 修稿时间： | 2006-09-29 |
Energy Efficiency of STBC-Encoded Cooperative Transmission System in Wireless Sensor Networks |
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| YU Jie,CHEN Hui-min,JIN Yan-liang. Energy Efficiency of STBC-Encoded Cooperative Transmission System in Wireless Sensor Networks[J]. Journal of Shanghai University(Natural Science), 2007, 13(6): 696-698 |
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| Authors: | YU Jie CHEN Hui-min JIN Yan-liang |
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| Affiliation: | School of Communication and Information Engineering, Shanghai University, Shanghai 200072, China |
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| Abstract: | STBC-encoded cooperative transmission system in wireless sensor networks and its energy efficiency are investigated. A criterion for single transmission is proposed. energy-limited wireless sensor transmitted power can minimize performance comparison between STBC-encoded cooperative transmission and The threshold of transmit power in cooperative transmission is calculated for networks. Simulation results demonstrate that the proposed threshold the overall network transmission power with a certain outage probability. |
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| Keywords: | wireless sensor networks cooperative transmission STBC outage probability |
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