一种自适应的健壮TCP/IP报头压缩算法

吴亦川  黄  奎  郑健平  孙利民  程伟明

一种自适应的健壮TCP/IP报头压缩算法

吴亦川黄奎郑健平孙利民程伟明

(中国科学院软件研究所多媒体中心北京 100080) (wyc@iscas.ac.cn)

计量
- 文章访问数: 861
- HTML全文浏览量: 0
- PDF下载量: 512
出版历程
- 发布日期: 2005-04-14

An Adaptive Robust TCP/IP Header Compression Algorithm

Wu Yichuan, Huang Kui, Zheng Jianping, Sun Limin, and Cheng Weiming

(Multimedia Center, Institute of Software, Chinese Academy of Sciences, Beijing 100080)

摘要

摘要: 在无线IP网络中，采用报头压缩技术减小TCP/IP协议报头带来的额外开销，提高无线信道的频谱利用率.然而现有的报头压缩方案没有考虑无线信道状态，无法很好地适应无线链路的时变特性.提出并分析了一种自适应的健壮TCP/IP报头压缩算法.该算法通过使用对无线信道状态的精确估计调节报头压缩器中W-LSB编码的可变滑动窗口大小，能够实现压缩率和抗差错健壮性之间较好的平衡，可以很好适应特性经常变化的无线链路.最后，给出了实验结果，证实了该算法在无线链路上的有效性.
- 自适应 /
- 健壮TCP/IP报头压缩 /
- 无线IP网络 /
- W-LSB编码
Abstract: In order to improve the spectrum efficiency of wireless channel, header compression schemes are used to reduce the TCP/IP protocol header size in wireless IP ne tworks. However, all existing header compression schemes do not take wireless ch annel state into consideration. For better usage over wireless links, a new adap tive robust TCP/IP header compression algorithm is proposed and analyzed. Throug h adjusting the dimension of variable sliding window (VSW) of W-LSB encoding in header compressor with the accurate estimation of wireless channel state, this a lgorithm can achieve a good balance of compression ratio and error-resistant rob ustness. Simulation results are given to demonstrate the effectiveness of this a daptive algorithm over wireless link.
- adaptive /
- robust TCP/IP header compression /
- wireless IP networks /
- W-LSB encoding