基于跳频WLAN的移动多媒体传输纠错码技术研究  

Study of error correction code technology apply to mobile multimedia transmission based on frequency-hop WLAN

作　　者：茹乐[1] 杜兴民[1] 毕笃彦[1] 

机构地区：[1]空军工程大学工程学院航空电子工程系,西安710038

出　　处：《计算机工程与应用》2007年第18期132-134,共3页Computer Engineering and Applications

摘　　要：通过对多种多媒体传输标准纠错编码技术的研究,结合跳频WLAN信道特性,提出了一种应用于WLAN的移动多媒体传输LDPC+RS级联纠错码方案。仿真实验表明,与用于数字广播网移动多媒体传输的DVB-H标准纠错码方案相比,该方案的纠错性能有明显的提高,在基于跳频WLAN的移动多媒体传输系统中应用具有一定的优势。In this paper,we have studied the error correction code technology of multimedia transmit standard. Based on the characteristics of the frequency-hop WLAN channel,a novel LDPC＋RS concatenated coding scheme for mobile multimedia transmit based on frequency-hop WLAN is proposed.Simulation results show that this proposed scheme provides good performance compared with DVB-H standard.This proposed scheme is more suitable for mobile multimedia transmission system based on frequency-hop WLAN.

关 键 词：无线局域网 跳频 移动多媒体传输 低密度码 

分 类 号：TP911.22[自动化与计算机技术]