| 无线网络中最小延迟代价网络编码的研究 |
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| 引用本文： | 代思,何加铭,郑紫微,冯波.无线网络中最小延迟代价网络编码的研究[J].无线电通信技术,2013(6):25-28,93. |
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| 作者姓名： | 代思 何加铭 郑紫微 冯波 |
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| 作者单位： | [1]宁波大学通信技术研究所,浙江宁波315211 [2]浙江省移动网应用技术重点实验室,浙江宁波315211 [3]中国移动通信集团浙江有限公司,浙江宁波315042 |
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| 基金项目： | 国家科技重大专项（2011ZX03002-004-02）;浙江省移动网络应用技术重点实验室（2010E10005）;浙江省新一代移动互联网用户端软件科技创新团队（2010R50009）;浙江省重点科技创新团队项目（2012R10009-12）;浙江省重大科技专项重点工业项目（No.2011C11042）. |
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| 摘 要： | 网络编码能极大地提高网络吞吐量和传输可靠性.编码机会易受到数据包数量不公平性的影响,提出一个具有最小延迟代价的网络编码方法（MDCNC）.首先找到一条固定路由并确定该路由所经过的每一节点的编码能力,然后根据数据流在不同节点处以及不同时隙的可编码情况,灵活地应用该延迟发送策略,以牺牲较小的端到端延迟时间换取更多的编码机会.仿真结果表明,MDCNC能够带来更多的编码机会,进而使网络拥有更高的吞吐量.
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| 关 键 词： | 网络编码 延迟 无线网络 吞吐量 编码机会 |
Study of Minimum Delay Cost Network Coding in Wireless Network |
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| DAI Si,HE Jia-ming,ZHENG Zi-wei,FENG Bo.Study of Minimum Delay Cost Network Coding in Wireless Network[J].Radio Communications Technology,2013(6):25-28,93. |
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| Authors: | DAI Si HE Jia-ming ZHENG Zi-wei FENG Bo |
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| Affiliation: | 1. Institute of Communication, Ningbo University, Ningbo Zhejiang 315211, China ; 2. Key Laboratory of Mobile Internet Application Technology of Zhejiang Province, Ningbo Zhejiang 315211, China; 3. Ningbo Branch, China Mobile Group Zhejiang Co. , Ltd, Ningbo Zhejiang 315042, China) |
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| Abstract: | Network coding can greatly improve network throughput and transmission reliability. A minimum delay cost network coding method （MDCNC） is proposed to deal with the unfairness of data packet. Firstly, a fixed route is found and the encoding capability of each node is determined. Then a delay strategy is applied at different nodes and different time slots for the purpose of generating more coding opportunities. The simulation results show that the network throughput can be greatly improved by MDCNC when compared to the traditional routing protocol by using COPE. |
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| Keywords: | network coding delay wireless network throughput coding opportunity |
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