| 无线Mesh网络下的网络编码机制 |
| |
| 引用本文： | 廖勇,杨士中.无线Mesh网络下的网络编码机制[J].北京邮电大学学报,2010,33(1):27-32. |
| |
| 作者姓名： | 廖勇 杨士中 |
| |
| 作者单位： | 重庆大学,通信与测控中心,重庆,400044;重庆大学,通信与测控中心,重庆,400044 |
| |
| 基金项目： | 国家发改委CNGI2005示范工程项目(CNGI-04-4-2D) |
| |
| 摘 要： | 提出了一种无线网状环境下基于接收节点速率匹配的传输控制协议(TCP)网络编码机制，通过网状连接层(MCL)构建编码层对传输控制协议数据(TCP-DATA)和传输控制协议应答(TCP-ACK)进行网络编码，采用修改的分布式协调功能请求发送/清除发送(DCF RTS/CTS)机制在接收节点确定数据传输速率. 实际搭建了1个3跳的无线Mesh线性网络，对基于接收节点速率匹配的TCP网络编码数据进行捕获分析，得出其端到端系统的TCP吞吐量与没有采用网络编码相比提高了约20%.
|
| 关 键 词： | 接收节点速率匹配 传输层 网络编码 无线网络 |
| 收稿时间： | 2009-5-15 |
| 修稿时间： | 2009-9-11 |
A Network Coding Scheme in Wireless Mesh Networks |
| |
| LIAO Yong,YANG Shi-zhong.A Network Coding Scheme in Wireless Mesh Networks[J].Journal of Beijing University of Posts and Telecommunications,2010,33(1):27-32. |
| |
| Authors: | LIAO Yong YANG Shi-zhong |
| |
| Affiliation: | (Center of Communication and Tracking Telemetering Command, Chongqing University, Chongqing 400044,China) |
| |
| Abstract: | In this paper, a wireless MESH TCP network coding scheme based on rate-matching receiver is proposed. This scheme constructs network coding(NC) layer to code TCP-DATA and TCP-ACK on MCL(Microsoft Connectivity Layer), and adopts modified DCF RTS/CTS mechanism to match data rate in the receiver.Actually a real 3 hops wireless mesh linear network has been constructed, capturing the TCP network coding data based on the proposed scheme, therefore, a conclusion is drawn that the throughput of the end-to-end system is 20% higher than non-NC scheme. |
| |
| Keywords: | rate-matching receiver tcp network coding wireless networks |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《北京邮电大学学报》浏览原始摘要信息 |
|
点击此处可从《北京邮电大学学报》下载全文 |
|
