计算机应用 ›› 2010, Vol. 30 ›› Issue (12): 3180-3183.

• 网络与通信 • 上一篇    下一篇

高性能的机会网络数据转发机制—EH-EC

杨波,王雷   

  1. 湖南大学
  • 收稿日期:2010-05-20 修回日期:2010-07-18 发布日期:2010-12-22 出版日期:2010-12-01
  • 通讯作者: 王雷

EH-EC: High performance data forwarding mechanism for opportunistic networks

  • Received:2010-05-20 Revised:2010-07-18 Online:2010-12-22 Published:2010-12-01

摘要: 针对H-EC数据转发机制所存在的系统漏洞问题,提出了一种有效解决系统漏洞的方法,同时提出了一种对数据块进行有效划分的方法。在此基础上,设计并实现了一种新的数据转发机制——增强混合擦除编码机制(EH-EC)。在OMNET++下的仿真结果表明:EH-EC时延更少,转发成功率更高,但是相对H-EC会增加少量的路由信息冗余。

关键词: 机会网络, 数据转发, 混合擦除编码

Abstract: An efficient method was proposed to solve the system black hole problem existed in Hybrid of Erasure Coding (H_EC). And at the same time an original method was proposed to divide messages into small data blocks. Based on these, a new forwarding approach called Enhanced Hybrid Erasure-Coding (EH-EC) was proposed and achieved. Theoretical analysis and simulation results show that messages can be transmitted by EH-EC from source node to destination node with lower delay and higher delivery rate than H-EC by the OMNET++ platform, but only a few router redundancies will be increased.

Key words: opportunistic network, data forwarding, Hybrid of Erasure Coding (H-EC)