| 短报文可靠传输协议的设计与实现 |
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| 引用本文： | 王宇亮,章洋,郑昌文.短报文可靠传输协议的设计与实现[J].计算机工程与设计,2007,28(18):4394-4396,4400. |
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| 作者姓名： | 王宇亮 章洋 郑昌文 |
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| 作者单位： | 中国科学技术大学,计算机科学技术系,安徽,合肥,230027;中国科学院软件研究所综合信息系统技术国家重点实验室,北京,100080;中国科学院软件研究所综合信息系统技术国家重点实验室,北京,100080 |
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| 基金项目： | 国家高技术研究发展计划(863计划)
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国家自然科学基金 |
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| 摘 要： | 在某些移动自组网环境中,存在大量突发的要求可靠性与实时性的短报文业务.现有的UDP协议无法保证报文可靠有序的到达,并且缺乏流量控制,容易导致网络拥塞,TCP及其改进协议使用三次握手机制来建立连接,这对于短报文来说是极大的浪费.对此分析了三次握手建立连接的设计原因,设计并实现了短报文可靠传输协议,通过避免三次握手,FRTO技术以及简短的报文头格式减小了连接代价,大幅提高了短报文的传输效率.
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| 关 键 词： | 无线自组网 传输层 短报文 可靠性 三次握手 |
| 文章编号： | 1000-7024（2007）18-4394-03 |
| 修稿时间： | 2006-10-16 |
Design and implement of reliable short packet transport protocol |
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| WANG Yu-liang,ZHANG Yang,ZHENG Chang-wen.Design and implement of reliable short packet transport protocol[J].Computer Engineering and Design,2007,28(18):4394-4396,4400. |
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| Authors: | WANG Yu-liang ZHANG Yang ZHENG Chang-wen |
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| Affiliation: | 1. Department of Computer Science and Technology, University of Science and Technology of China, Hefei 230027, China; 2. National Key Laboratory of Integrated Information System Technology, Institute of Software, Chinese Academy of Sciences, Beijing 100080, China |
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| Abstract: | A large number of short packets need to be transmitted reliably and real-timely in some MANETs. UDP could not guarantee the reliability and lack of flow control which may cause congestion. TCP and its variations need three-way hand shake before data trans- port, which is a great waste for short packets. A reliable transport protocol is designed and implemented for short packet transport on analyzing the design problems of three-way hand shake. The short packet transfer performance is greatly improved through the avoidance of three-way hand shake, the F-RTO and a concise packet head for reducing the cost of the head. |
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| Keywords: | MANET RSPTP short packet reliability three-way hand shake |
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