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Rate control for streaming media transmission
over WLAN |
| ZHU Xiaoliang1, DU Xu1, ZHU Xiaoliang2 |
| 1.Department of Electronics and Information Enineering, Huazhong University of Science and Technology; 2.Engineering Research Center for Education Information Technology, Huazhong Normal University |
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Abstract In order to solve the problems of link layer retransmission and packet fragment strategies for IEEE 802.11, this paper proposes a variable packet TCP-friendly 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.
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Issue Date: 05 September 2008
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Zhang Z J Guaranteeingend-to-end adaptive QoS in wireless multimedia networksChinese Journal of Computers 2004 27(8)10641073(in Chinese)
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