A new mechanism of transmitting MPEG-4 video in IEEE 802.11 wireless LAN with DCF
Shihong Zou, Haitao Wu, Shiduan Cheng · 2004
The basis of IEEE 802.11 wireless LAN medium access control (MAC) is distributed coordination function (DCF). When network load in WLAN is moderate or even higher, with DCF a station may need to defer several seconds before transmission. This will degrade the performance of real time applications such as MPEG-4 video stream. This paper proposes a new mechanism for deliver MPEG-4 video stream with DCF. Simulations show that our mechanism provides much less delay and jitter while obtains the same goodput and fairness.