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Received:November 26, 2015 Revised:January 04, 2016
Received:November 26, 2015 Revised:January 04, 2016
中文摘要: 针对实际无线网络中数据包丢失率高的问题，在IEEE 802.11DCF基本接入机制的基础上提出了一种基于线性网络编码的信道接入机制（LEC-DCF）. 该机制通过改进COPE协议的网络编码方式，提出了采用双解码方法来对编码包进行解码，大大提高了目的节点的解码成功率. 运用马尔科夫链模型对LEC-DCF进行数学建模分析. 分析结果表明：在数据包丢失率比较高的情况下，LEC-DCF机制可以明显提高网络吞吐量.
Abstract:Considering the main problem of the high loss rate in wireless environments, this paper proposes a linear networking coding-aware 802.11 distributed coordination function(LEC-DCF). A double-decoding method is introduced to decode the transmitted packets. The decoding success rate of the destination node is greatly improved. It develops a Markov chain model to characterize the mathematical modeling of LEC-DCF. Analysis result shows that LEC-DCF can improve throughput in high loss rate wireless environments.
文章编号： 中图分类号： 文献标志码：
基金项目:
| Author Name | Affiliation |
| WANG Ming-Fang | Department of Computer Science, Wuxi Institute of Arts & Technology, Yixing 214206, China |
| Author Name | Affiliation |
| WANG Ming-Fang | Department of Computer Science, Wuxi Institute of Arts & Technology, Yixing 214206, China |
引用文本：
王明芳.基于线性网络编码的802.11 DCF信道接入机制.计算机系统应用,2016,25(8):220-226
WANG Ming-Fang.802.11 DCF Channel Access Mechanism Based on Linear Networking Coding.COMPUTER SYSTEMS APPLICATIONS,2016,25(8):220-226
王明芳.基于线性网络编码的802.11 DCF信道接入机制.计算机系统应用,2016,25(8):220-226
WANG Ming-Fang.802.11 DCF Channel Access Mechanism Based on Linear Networking Coding.COMPUTER SYSTEMS APPLICATIONS,2016,25(8):220-226
