Title :
A new mechanism of transmitting MPEG-4 video in IEEE 802.11 wireless LAN with DCF
Author :
Zou, Shihong ; Wu, Haitao ; Cheng, Shiduan
Author_Institution :
Nat. Lab. of Switching Technol. & Telecommun. Networks, Beijing Univ. of Posts & Telecommun., China
Abstract :
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.
Keywords :
access protocols; delays; jitter; multimedia communication; visual communication; wireless LAN; DCF; IEEE 802.11 wireless LAN; MAC; delay; distributed coordination function; jitter; local area network; media access control; network load; transmitting MPEG-4 video; Degradation; Delay; Jitter; MPEG 4 Standard; Media Access Protocol; Scalability; Spatial resolution; Streaming media; Video compression; Wireless LAN;
Conference_Titel :
Communication Technology Proceedings, 2003. ICCT 2003. International Conference on
Print_ISBN :
7-5635-0686-1
DOI :
10.1109/ICCT.2003.1209751
