无线网络中ROHC压缩算法研究  

Research of ROHC Compression Algorithm in Wireless Networks

作　　者：邱宏燕[1] 杨灿[1] 张大明[1] 

机构地区：[1]中国电子科技集团公司第七研究所,广东广州510310

出　　处：《移动通信》2017年第6期65-71,共7页Mobile Communications

摘　　要：为了提高无线网络的报头压缩效率及压缩鲁棒性,针对无线网络存在多种窄带传输链路且传输速率较低、误码率较高、节点移动频繁等特征,介绍了ROHC报头压缩算法,研究了基于无线信道估计与上层业务需求、节点移动和多播三种情况下压缩算法优化改进思路,并通过仿真测试对比和分析,验证了无线节点移动情况下ROHC改进算法的可行性。In order to improve the header compression ratio and compression robustness in wireless networks, ROHC header compression algorithm was introduced according to characteristics of multiple narrow-band transmission links, low transmission rate, high bit error rate and frequent node movement. Compression algorittuns and their improvement strategies in three cases of the upper-layer service requirement, node movement and multicast based on wireless channel estimation were investigated. Simulation tests validate the feasibility of the improved ROHC algorithm in the case of wireless node movement.

关 键 词：鲁棒性报头压缩协议 自适应报头压缩 多播传输系统 

分 类 号：TN929.5[电子电信—通信与信息系统]