ROHC算法在LWIP上的仿真与实现

Simulation and Implementation of ROHC Algorithm on LWIP

首先分析多种数据报头压缩算法,根据系统的需求深入研究ROHC数据报头压缩算法,以提高数据报头压缩率、减少数据报头传输为目的,对算法中的状态转移机制、W_LSB编码进行了细致的论述,以高误码率、高延迟的无线网络环境为前提,提出在Lw IP上实现上述算法的一系列方法。最终将ROHC算法以及上层传输软件结合到已有的无线传输系统中,测试表明ROHC算法能有效的减少数据传输量提高数据传输质量。

Firstly, various data robust header compression algorithms were analyzed. According to the needs of system, a header compression algorithm of ROHC data was studied in depth. In order to improve the compression rate of data header and reduce the data header transmission, the state transition mechanism in algorithm and W_LSB encoding were discussed in details. On the basis of wireless network environment with high bit error rate and high delay, this article proposed a series of methods to achieve the above algorithm on LwIP. Finally, we combined the ROHC algorithm and the transmission software in upper layer into the existing wireless transmission system. Test results prove that the ROHC algorithm can effectively reduce the amount of data transmission and improve the quality of data transmission quality.