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dc.contributor.author Hossain, E
dc.contributor.author Bhargava, VK
dc.date.accessioned 2007-10-04T12:36:29Z
dc.date.available 2007-10-04T12:36:29Z
dc.date.issued 2001-11-30T12:36:29Z
dc.identifier.citation 0733-8716; IEEE J SEL AREA COMMUN, NOV 2001, vol. 19, no. 11, p.2201 to 2214. en
dc.identifier.uri http://hdl.handle.net/1993/2862
dc.identifier.uri id=doi:10.1109/49.963806
dc.description.abstract A unified time-division multiple access (TDMA)based centralized wireless access scheme is proposed for performing the statistical multiplexing of bursty data sources in a wireless packet data network. This scheme combines dynamic bandwidth allocation with admission control and packet conditioning (at the mobile stations) to provide fair bandwidth distribution among bursty data flows with different profile rates (or subscription levels) in an error-prone environment. The dynamic bandwidth allocation policy is credit-based and both the burst-level and the packet-level bandwidth allocations are considered. The performance of the scheme is evaluated using computer simulations for different total subscription levels, for different compositions of flows with different profile rates, and for different channel quality with different channel-error correlation patterns. The simulation results show that the throughput variability among flows with the same level of subscription is considerably small except for long range dependent flows with very high traffic burstiness. The relative throughput fairness among flows with different profile rates can also be achieved. The post facto loss and delay values (i.e., observed average packet delay and average packet loss values) for the flows depend on the corresponding delay tolerance limits of the data bursts, TDMA frame-length, and the wireless link utilization level. The energy efficiency of the wireless access scheme is evaluated in terms of the average transmitter usage time and the average receiver usage time in the mobile stations for both the burst-level and the packet-level bandwidth allocation. The proposed scheme can be used in an adaptive quality-of-service (QoS) framework for dynamically adjusting the QoS for flows in order to accommodate wireless channel errors and user mobility. en
dc.format.extent 304619 bytes
dc.format.mimetype application/pdf
dc.language.iso en_US
dc.rights ©2001 IEEE. This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of the University of Manitoba's products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to pubs-permissions@ieee.org. By choosing to view this document, you agree to all provisions of the copyright laws protecting it. en
dc.subject correlated fading en
dc.subject differentiated services Internet en
dc.subject self-similar traffic en
dc.subject wireless fair queueing en
dc.subject wireless IP networks en
dc.title A centralized TDMA-based scheme for fair bandwidth allocation in wireless IP networks en
dc.status Peer reviewed en


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