DocumentCode :
2411302
Title :
A QoS Weight Based Multimedia Uplink Scheduler for IEEE 802.11e WLAN
Author :
Roy, J. Jackson Juliet ; Vaidehi, V. ; Srikanth, S.
Author_Institution :
AU-KBC Res. Center, Anna Univ., Chennai
fYear :
2007
fDate :
22-24 Feb. 2007
Firstpage :
446
Lastpage :
451
Abstract :
Even though the basic IEEE 802.11 wireless local area network (WLAN) standard does not specify quality of service (QoS), the enhanced IEEE 802.11e draft defines hybrid coordination function (HCF) which provides QoS support by serving real-time delay bound multimedia applications with effective allocation of transmission opportunity (TXOP). The allotted TXOP to any QSTA has to be utilized efficiently to enhance the system performance. This paper proposes a novel QoS capable station (QSTA) uplink scheduler along with a QoS capable AP (QAP) HCF scheduler capable of attaining the QoS requirement of delay bound multimedia applications. The performance of this proposed uplink scheduler is compared with conventional schedulers such as earliest deadline first (EDF), and highest priority first (HPF). The simulations are carried out in orthogonal frequency division multiplexing (OFDM) based IEEE 802.11g WLAN. The simulation results show that the overall system performance is enhanced in terms of delay reduction, throughput enhancement and improved channel utilization
Keywords :
OFDM modulation; multimedia communication; quality of service; scheduling; wireless LAN; HCF; IEEE 802.11e WLAN; OFDM; QSTA; QoS capable station; TXOP; hybrid coordination function; multimedia uplink scheduler; orthogonal frequency division multiplexing; quality of service; real-time delay; transmission opportunity allocation; wireless local area network; Delay effects; MIMO; OFDM; Physical layer; Quality of service; Streaming media; System performance; Throughput; Traffic control; Wireless LAN;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Signal Processing, Communications and Networking, 2007. ICSCN '07. International Conference on
Conference_Location :
Chennai
Print_ISBN :
1-4244-0997-7
Electronic_ISBN :
1-4244-0997-7
Type :
conf
DOI :
10.1109/ICSCN.2007.350779
Filename :
4156661
Link To Document :
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