充分考虑节点编码机会的编码感知路由协议  

Coding-Aware Routing by Fully Considering Coding Opportunity

作　　者：赵蕴龙[1] 王博识[1] 张凯[1] 董钊[1] 张磊[2] 

机构地区：[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

出　　处：《应用科学学报》2014年第1期7-12,共6页Journal of Applied Sciences

基　　金：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

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.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 experi- ments in NS-2 show that the proposed algorithm is effective, and ExCAR can enhance the network throughput and improve packet delivery rate.

关 键 词：多跳无线网络 编码机会 编码感知路由协议 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]