Study on transmitting MPEG-4 video stream in WLAN

Study on transmitting MPEG-4 video stream in WLAN

The basis of IEEE 802.11 wireless LAN Medium Access Control (MAC) is Distributed Coordination Function (DCF). When the network load in WLAN (wireless LAN) is moderate or even higher, with DCF a station may need to defer several seconds before successful transmission. This will degrade the performanc...

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Veröffentlicht in:Dian zi yu xin xi xue bao = Journal of electronics & information technology 2005-01, Vol.27 (1), p.131-135
Hauptverfasser: Zou, Shi-Hong, Lin, Hua-Sheng, Cheng, Shi-Duan
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container_title Dian zi yu xin xi xue bao = Journal of electronics & information technology
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creator Zou, Shi-Hong
Lin, Hua-Sheng
Cheng, Shi-Duan
description The basis of IEEE 802.11 wireless LAN Medium Access Control (MAC) is Distributed Coordination Function (DCF). When the network load in WLAN (wireless LAN) is moderate or even higher, with DCF a station may need to defer several seconds before successful transmission. This will degrade the performance of real time applications such as MPEG-4 video stream. This paper proposes L-DCF, which is suitable for real time applications, and presents the mechanism for transmitting MPEG-4 video stream with L-DCF. Simulations show that this mechanism provides much less delay and jitter while it obtains the same throughput and fairness.
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title Study on transmitting MPEG-4 video stream in WLAN
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