| DTN中基于传染路由的节点拥塞控制策略 |
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| 引用本文： | 赵玲,刘占军,李云,刘期烈. DTN中基于传染路由的节点拥塞控制策略[J]. 通信技术, 2009, 42(2): 136-137 |
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| 作者姓名： | 赵玲 刘占军 李云 刘期烈 |
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| 作者单位： | 重庆邮电大学无线信息网络研究中心,重庆,400065 |
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| 基金项目： | 国家自然科学基金，教育部新世纪优秀人才支持计划(NCET):重庆市教委项目，重庆邮电大学青年基金 |
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| 摘 要： | DTN中信息传输采用存储转发模式，当节点缓存受限，在该网络中采用传染路由则节点处易发生拥塞。针对此问题提出一种基于传染路由的拥塞控制策略：当节点缓存完全占用又需存储新分组时，遍历缓存，找出转发次数大于等于N次的分组将其删除；若缓存中没有这样的分组，则删除最后一个存入的分组，缓解拥塞，有效提高了网络各性能。
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| 关 键 词： | DTN 传染路由 拥塞控制 转发次数 |
Congestion Control Strategy Based on Epidemic Routing for node in DTN |
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| ZHAO Ling,LIU Zhan-jun,LI Yun,Liu Qi-lie. Congestion Control Strategy Based on Epidemic Routing for node in DTN[J]. Communications Technology, 2009, 42(2): 136-137 |
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| Authors: | ZHAO Ling LIU Zhan-jun LI Yun Liu Qi-lie |
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| Affiliation: | (Research Center for Wireless Information Networks, Chongqing University of Posts and Telecommunications, Chongqing 400065, China) |
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| Abstract: | In Delay Tolerant Network（DTN）, the store-and-forward mode is used for information transmission. When the buffer of the node is limited, the congestion at node is quite frequent while epidemic Routing is used in DTN. In order to solve the problem, a congestion control strategy based on Epidemic Routing. When the buffer of node was fully occupied and node needs store new messages, the node lookups per message in its buffer, then finds out the messages which number of forwarding are over N and deletes them. There are no messages which number of forwarding are over N, node deletes the last one. The simulation results testify the improvement. |
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| Keywords: | DTN |
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