Dynamic rate and power adaptation for provisioning class-based QoS in cellular multirate WCDMA systems

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dc.contributor.authorKim, DI
dc.contributor.authorHossain, E
dc.contributor.authorBhargava, VK
dc.date.accessioned2007-10-04T13:00:04Z
dc.date.available2007-10-04T13:00:04Z
dc.date.issued2004-09-30T13:00:04Z
dc.description.abstractThis paper addresses the problem of dynamic link adaptation under multiple quality-of-service (QoS) constraints in cellular wideband code-division multiple-access (WCDMA) systems. A novel dynamic joint rate and power adaptation framework is proposed for downlink data transmission in a multicell variable spreading factor (VSF) WCDMA system where the different classes of users have different signal-to-interference ratio (SIR) requirements. Based on a general downlink SIR model, the problem of optimal dynamic rate and power adaptation under multiple SIR constraints is also formulated, for which the rate and power allocation can be found by an exhaustive search. Two schemes, namely, near-optimal and suboptimal schemes, are proposed for implementation-friendly dynamic rate and power adaptation. Performance of dynamic joint rate and power adaptation under the proposed framework is evaluated under random micro-mobility model with uncorrelated long-term fading and a directional micro-mobility model with correlated long-term fading in a cellular WCDMA environment.en
dc.format.extent649223 bytes
dc.format.mimetypeapplication/pdf
dc.identifier.citation1536-1276; IEEE TRANS WIREL COMMUN, SEP 2004, vol. 3, no. 5, p.1590 to 1601.en
dc.identifier.doihttp://dx.doi.org/10.1109/TWC.2004.833492
dc.identifier.urihttp://hdl.handle.net/1993/2869
dc.language.isoengen_US
dc.rights©2004 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.rightsrestricted accessen_US
dc.statusPeer revieweden
dc.subjectdynamic rate and power adaptationen
dc.subjectmulticell multirate wideband code-division multiple-access (WCDMA) systemsen
dc.subjectclass-based quality of service (QoS)en
dc.subjectpriority-based rate adaptationen
dc.titleDynamic rate and power adaptation for provisioning class-based QoS in cellular multirate WCDMA systemsen
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