| 一种实用的DF协作无线传感器网络跨层设计 |
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| 引用本文： | 闫秋娜,岳殿武,郭丽丽.一种实用的DF协作无线传感器网络跨层设计[J].电子设计工程,2011,19(11):8-11,15. |
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| 作者姓名： | 闫秋娜 岳殿武 郭丽丽 |
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| 作者单位： | 1. 大连海事大学信息科学技术学院,辽宁大连,116026
2. 深圳信息职业技术学院电子通信技术系,广东深圳,518029 |
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| 基金项目： | 高等学校博士学科点专项科研基金资助项目，广东省自然科学基金资助项目，辽宁省"百千万人才工程"资助项目，国家自然科学基金 |
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| 摘 要： | 针对前向译码(DF)协作无线传感器网络的特点和要求,探讨基于分集合并和差错控制两种技术的实用跨层设计方案。首先,研究支持DF中继协议的协作传感器网络在目的节点采用等增益合并(EGC)的检测方案。通过和传统的最大比合并(MRC)方案以及最近提出的协作MRC方案综合比较,说明等增益合并是一个具有良好性能的实用方案。然后,把物理层的EGC和数据链路层的自动请求重传(ARQ)结合起来,再进行系统分析。最后,基于EGC和截断ARQ提出一种实用跨层设计方案。
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| 关 键 词： | 无线通信 中继网络 协作分集 等增益合并 前向译码 自动请求重传 |
A practical cross-layer design scheme for DF-cooperative wireless sensor networks |
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| YAN Qiu-na,YUE Dian-Wu,GUO Li-li.A practical cross-layer design scheme for DF-cooperative wireless sensor networks[J].Electronic Design Engineering,2011,19(11):8-11,15. |
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| Authors: | YAN Qiu-na YUE Dian-Wu GUO Li-li |
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| Institution: | 1.College of Information Science and Technology,Dalian Maritime University,Dalian 116026,China;2.Department of Electronics Communication Engineering,Shenzhen Institute of Information Technology,Shenzhen 518029,China) |
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| Abstract: | In accordance with the requirements and characteristics of decode-and-forward(DF) cooperative wireless sensor networks,this paper investigates cross-layer design based on diversity-combining and error-control techniques.The detection scheme based on equal gain combining(EGC) at the destination node is first investigated for a cooperative wireless sensor network with DF relaying protocol.It is shown by simulation that the EGC scheme is a good practical solution by comparing with the traditional maximal-ratio combining(MRC) scheme and the new cooperative-MRC scheme.Then the combination of EGC at physical and automatic repeat request(ARQ) at data link layer is analyzed further,and a practical cross-layer design scheme based on EGC and truncated ARQ is finally presented. |
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| Keywords: | wireless communications relay network cooperative diversity equal gain combining decode-and-forward automatic repeat request |
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