Paper Info
Title
Adaptive Scheduling of Prioritized Traffic in IEEE 802.16j Wireless Networks
Abstract
In this paper we propose an adaptive scheduling algorithm for IEEE 802.16j based wireless broadband networks. Computation of an optimal schedule for prioritized traffic in OFDMA based IEEE 802.16 wireless network is an NP-Hard problem. Hence, we propose a scheduling heuristic for an OFDMA based WiMAX relay network. The ORS (OFDMA Relay Scheduler) heuristic computes the zone boundaries (relay and access) in an uplink scheduling frame based on the number of RSs and MSs, the bandwidth demands and the link conditions. The ORS heuristic determines a schedule which assigns subchannels and timeslots to prioritized traffic based on the demand for various nodes while implementing frequency selectivity. The ORS adapts zone boundaries and the schedule to link and demand conditions at every scheduling period. We perform extensive simulations to demonstrate the effectiveness of adaptive zone scheduling and changes in rate conditions for various topologies.
Year
DOI
Venue
2009
10.1109/WiMob.2009.59
Marrakech
Keywords
Field
DocType
scheduling period,prioritized traffic,ors adapts zone boundary,scheduling heuristic,adaptive scheduling,uplink scheduling frame,ors heuristic,ofdma relay scheduler,adaptive zone scheduling,heuristic compute,wireless networks,adaptive scheduling algorithm,cost effectiveness,pediatrics,wireless network,base station,scheduling algorithm,mesh network,satellite communication,bandwidth,resource allocation,np hard problem,scheduling,indexing terms,broadband networks,mobile station,schedules,broadband network,wimax
Wireless network,Wireless broadband,Fair-share scheduling,Computer science,Scheduling (computing),Computer network,WiMAX,Schedule,IEEE 802,Dynamic priority scheduling,Distributed computing
Conference
ISBN
Citations 
PageRank 
978-0-7695-3841-9
6
0.51
References 
Authors
10
3
Name
Order
Citations
PageRank
Debalina Ghosh1413.67
Ashima Gupta2939.17
Prasant Mohapatra34344304.46