DocumentCode :
462925
Title :
A slot allocation mechanism for diverse QoS types in OFDMA based IEEE 802.16e systems
Author :
Gowda, Harsha ; Lakshmaiah, Ramya ; Kaur, Manjot ; Mohanram, Chandrashekar ; Singh, Manjeet ; Dongre, Shashidhara
Author_Institution :
Commun. Strategic Bus. Unit, Larsen & Toubro Infotech Limited, Bangalore
Volume :
1
fYear :
2007
fDate :
12-14 Feb. 2007
Firstpage :
13
Lastpage :
17
Abstract :
In this paper, we investigate slot allocation for diverse quality of service (QoS) types in orthogonal frequency division multiple access (OFDMA) based IEEE 802.16e wireless MAN systems. For a downlink scenario, we propose flow metrics that dynamically capture the extent to which flows of diverse QoS types merit bandwidth allocation. Using these flow metrics, we propose a scheduling rule for a mixture of real-time, non real-time and best effort traffic. Our system model uses queues implemented as finite length buffers for each of the downlink flows. Simulation results are presented to compare the performance of the proposed rule with that of existing rules.
Keywords :
OFDM modulation; WiMax; frequency division multiple access; quality of service; queueing theory; telecommunication network management; telecommunication traffic; IEEE 802.16e wireless MAN systems; OFDMA; best effort traffic; diverse QoS type; diverse quality of service type; finite length buffers; orthogonal frequency division multiple access; scheduling rule; slot allocation mechanism; Bandwidth; Channel allocation; Delay; Downlink; Frequency conversion; Media Access Protocol; Physical layer; Quality of service; Throughput; Traffic control; IEEE 802.16e WirelessMAN; MLWDF; OFDMA; QoS; Slot allocation; WiMAX; cross-layer optimization;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Advanced Communication Technology, The 9th International Conference on
Conference_Location :
Gangwon-Do
ISSN :
1738-9445
Print_ISBN :
978-89-5519-131-8
Type :
conf
DOI :
10.1109/ICACT.2007.358250
Filename :
4195073
Link To Document :
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