无线VoIP系统MAC层RoQ攻击仿真研究  

Simulation Research on RoQ Attack at MAC Layer in Wireless VoIP System

作　　者：李鹏勇 

机构地区：[1]山西阳城广播电视局,阳城048100

出　　处：《信息通信技术》2009年第6期20-26,共7页Information and communications Technologies

摘　　要：随着无线VoIP技术的不断发展,其安全问题倍受关注。通过介绍无线VoIP系统MAC层的RoQ攻击原理,用网络仿真工具NS2模拟了RoQ攻击。实验结果表明,RoQ攻击大量占用无线信道资源,使语音数据包丢失以及网络延迟明显增大,进而导致无线VoIP用户无法使用语音服务。With the development of wireless VolP technology, its security problem has been paid more attention recently. The Reduction of Quality （RoQ） attack principle at MAC layer in wireless VolP system is discussed and the simulation of RoQ attack is implemented with NS2 （network simulation version 2）. The experiment results show that RoQ attack wastes more resources of wireless channel to cause longer delays and more voice packet loss rate, thus, destroy common communication service.

关 键 词：无线VOIP RoQ攻击 IEEE802.11 MAC 

分 类 号：TN916.2[电子电信—通信与信息系统]