Title :
Token- and Self-Policing-Based Scheduling for Multimedia Traffic Transmission Over WLANs
Author :
Koutsakis, Polychronis
Author_Institution :
Dept. of Electron. & Comput. Eng., Tech. Univ. of Crete, Chania, Greece
Abstract :
The worldwide popularity of wireless local area networks (WLANs) calls for efficient solutions in scheduling multimedia (voice, data, and video) traffic transmissions. Enhanced distributed channel access (EDCA), which is the contention-based channel access function of IEEE 802.11e, is unable to guarantee priority access to higher priority traffic in the presence of significant traffic loads from low-priority users. In this paper, we propose the use of a token- and self-policing-based scheduling scheme, which not only addresses this problem but also prevents bursty video nodes from overusing the medium and tackles the problem of idle time due to large transmission opportunities (TXOPs).
Keywords :
multimedia communication; scheduling; telecommunication traffic; wireless LAN; IEEE 802.11e; WLAN; contention-based channel access function; large transmission opportunity; multimedia scheduling; multimedia traffic transmission; self-policing-based scheduling; token scheduling; video nodes; wireless local area networks; IEEE 802.11e Standard; Multimedia communication; Streaming media; Telecommunication traffic; Transform coding; Videoconference; Wireless LAN; IEEE 802.11e; MPEG-4 video; medium access control (MAC); multimedia traffic; wireless local area networks (WLANs);
Journal_Title :
Vehicular Technology, IEEE Transactions on
DOI :
10.1109/TVT.2011.2168572
