Downlink joint rate and power allocation in cellular multirate WCDMA systems

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dc.contributor.authorKim, DI
dc.contributor.authorHossain, E
dc.contributor.authorBhargava, VK
dc.date.accessioned2007-10-04T12:42:03Z
dc.date.available2007-10-04T12:42:03Z
dc.date.issued2003-01-31T12:42:03Z
dc.description.abstractThis paper proposes a novel dynamic joint rate, and power control procedure for, downlink data transmission in a multicell variable spreading factor wideband code-division multiple-access (WCUMA), system where the different users have similar quality-of-service requirements in terms of the. signal-to-interference ratio (SIR). Two variations of the dynamic joint rate and power allocation, procedure, namely, Algorithm-1 and Algorithm-2, are presented. The performances of these two schemes are compared to the, performance of the optimal dynamic link adaptation for,which the rate and power allocation is found by an exhaustive search. The optimality, criterion is the maximization of the total radio link level capacity (or sum-rate capacity) in terms of the average number of radio link level frame transmitted per adaptation interval under constrained SIR and power limit in the base station transmitter. The proposed schemes have linear time complexity as compared to the exponential time complexity of the optimal scheme and achieve better,radio link level throughput fairness compared to the optimal link adaptation scheme with a moderate loss in total throughput. Performance evaluation is carried out under random and directional micromobility models with uncorrelated and correlated long-term fading, respectively, in cellular WCDMA environment for both the homogeneous (or uniform) and the nonhomogeneous (or nonuniform) traffic load scenarios.en
dc.format.extent725545 bytes
dc.format.mimetypeapplication/pdf
dc.identifier.citation1536-1276; IEEE TRANS WIREL COMMUN, JAN 2003, vol. 2, no. 1, p.69 to 80.en
dc.identifier.doihttp://dx.doi.org/10.1109/TWC.2002.806366
dc.identifier.urihttp://hdl.handle.net/1993/2864
dc.language.isoengen_US
dc.rights©2003 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 widebanden
dc.subjectcode-division multiple-access (WCDMA) systemsen
dc.subjectradio link level throughput fairnessen
dc.subjectCDMAen
dc.titleDownlink joint rate and power allocation in cellular multirate WCDMA systemsen
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