Rate control for streaming media transmission over WLAN  

作　　者：Xiaoliang ZHU Xu DU 

机构地区：[1]Department of Electronics and Information Enineering,Huazhong University of Science and Technology,Wuhan 430074,China [2]Engineering Research Center for Education Information Technology,Huazhong Normal University,Wuhan 430079,China

出　　处：《Frontiers of Electrical and Electronic Engineering in China》2008年第3期309-312,共4页中国电气与电子工程前沿（英文版）

摘　　要：In order to solve the problems of link layer retransmission and packet fragment strategies for IEEE 802.11,this paper proposes a variable packet TCPfriendly rate control(VPTFRC)scheme for streaming media transmission over wireless local area network(WLAN)by researching on the policy of packet size adjustment in transport layer based on the minimum retransmit-delay constraint.Unlike other proposals,this process considers the impact of wireless packet error ratio(PER)on the packet size adjustment and the performance of rate control.Simulation results demonstrate that our proposed process can simultaneously achieve higher throughput,better fairness,shorter transmission delay and less jitter than TFRC.Among them,the ratio of delay,jitter and packet loss rate can reach a maximum improvement ratio of 58%,42% and 85% respectively.

关 键 词：IEEE 802.11 wireless local area network(WLAN) TCP-FRIENDLY streaming media link layer retransmission 

分 类 号：TN9[电子电信—信息与通信工程]