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应用科学学报 ›› 2014, Vol. 32 ›› Issue (1): 7-12.doi: 10.3969/j.issn.0255-8297.2014.01.002

• 通信工程 • 上一篇    下一篇

充分考虑节点编码机会的编码感知路由协议

赵蕴龙1， 王博识1， 张凯1， 董钊1， 张磊2   

  1. 1. 哈尔滨工程大学计算机科学与技术学院，哈尔滨150001
    2. 哈尔滨工程大学信息与通信工程学院，哈尔滨150001
  • 收稿日期:2012-04-13 修回日期:2013-11-21 出版日期:2014-01-31 发布日期:2013-11-21
  • 作者简介:赵蕴龙，教授，研究方向：无线网络、物联网应用技术、移动计算技术等，E-mail: zhaoyunlong@hrbeu.edu.cn
  • 基金资助:

    国家自然科学基金(No.61003235)；黑龙江省教育厅科学技术研究项目基金(No.11553047)；中央高校基本科研业务费专项资
    金(No.HEUCFZ1105)资助

Coding-Aware Routing by Fully Considering Coding Opportunity

ZHAO Yun-long1, WANG Bo-shi1, ZHANG Kai1, DONG Zhao1, ZHANG Lei2   

  1. 1. College of Computer Science and Technology, Harbin Engineering University, Harbin 150001, China
    2. College of Information and Communication Engineering, Harbin Engineering University, Harbin 150001, China
  • Received:2012-04-13 Revised:2013-11-21 Online:2014-01-31 Published:2013-11-21

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摘要： 无线网络中应用网络编码技术的关键是寻找更多有效的编码机会. 提出最优化编码机会发现策略，进而与现有编码感知路由协议相结合，并以节点编码机会的数量作为最佳转发节点的判据，提出一种可充分考虑节点编码机会的编码感知路由协议——ExCAR. 运用NS-2仿真验证算法的有效性，结果表明该协议有利于提升网络
吞吐量，提高分组投递率.

关键词: 多跳无线网络, 编码机会, 编码感知路由协议

Abstract: A key in applying networking coding techniques in wireless networks is to explore more coding opportunities. A maximal coding opportunity discovery scheme is proposed, and by combining it with existing coding-aware routing protocols, a coding-aware routing protocol termed extended coding aware routing (Ex-CAR) is presented. The protocol takes maximal coding opportunity into consideration and selects the coding node number as a metric to determine the best forwarding node along the optimal route. Simulation experiments in NS-2 show that the proposed algorithm is effective, and ExCAR can enhance the network throughput and improve packet delivery rate.

Key words:  multi-hop wireless network, coding opportunity, coding-aware routing protocol

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