健壮性报头压缩的研究

Reasearch on Robust Header Compression

由于层次性互联网传输协议框架中各层协议的封装,使得协议报头变得越来越大,导致了信道带宽的利用率较低。针对报头压缩的问题,阐述了发展报头压缩技术的意义,对压缩的可能性进行了分析,介绍了ROHC协议的基本概念,阐述了ROHC压缩和解压的状态、运行模式和压缩效率,最后介绍了一个ROHC在PPPoE上的具体的实现过程,并给出了ROHC报头压缩技术的优势。

The encapsulation process of the hierarchical transmission protocols makes the protocol header be longer and longer and utility factor of the bandwidth for the channel becomes lower. The paper elaborates the importnce of the development of Robust Hader Compression （ROHC） and analyzes the possibilities of the compression. The basic concept of ROHC protocol is introduced compression and decompression states, mode of operation and efficiency of compression are described. Implementation of ROHC over PPPoE is introduced and the advantage is given.