Dynamic rate adaptation and integrated rate and error control in cellular WCDMA networks

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dc.contributor.authorKim, DI
dc.contributor.authorHossain, E
dc.contributor.authorBhargava, VK
dc.date.accessioned2007-10-04T12:53:14Z
dc.date.available2007-10-04T12:53:14Z
dc.date.issued2004-01-31T12:53:14Z
dc.description.abstractOptimal dynamic rate allocation among mobile stations for variable rate packet data transmission in a cellular wireless network is an NP-complete problem; therefore, suboptimal solutions to this problem are sought for. In this paper, three novel suboptimal dynamic rate adaptation schemes, namely, peak-interference-based rate allocation, sum-interference-based rate allocation, and mean-sense approximation-based rate allocation, are proposed for uplink packet data transmission in cellular variable spreading factor wide-band code division multiple access (WCDMA) networks. The performances of these schemes are compared to the performance of the optimal dynamic link adaptation for which the rate allocation is found by an exhaustive search. The optimality criterion is the maximization of the average number of radio link level frames transmitted per frame time under constrained signal-to-interference-plus-noise ratio (SINR) at the base station receiver. Two different error control alternatives for variable rate packet transmission environment are presented. We demonstrate that the dynamic rate adaptation problem under constrained SINR can be mapped into the radio link level throughput maximization problem with integrated rate and error control. Performance evaluation is carried out under random and directional micromobility models with uncorrelated and correlated long-term fading, respectively, in a cellular WCDMA environment for both the homogeneous (or uniform) and the nonhomogeneous (or nonuniform) traffic load scenarios.en
dc.format.extent563162 bytes
dc.format.mimetypeapplication/pdf
dc.identifier.citation1536-1276; IEEE TRANS WIREL COMMUN, JAN 2004, vol. 3, no. 1, p.35 to 49.en
dc.identifier.doihttp://dx.doi.org/10.1109/TWC.2003.819039
dc.identifier.urihttp://hdl.handle.net/1993/2868
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 adaptationen
dc.subjectradio link level error controlen
dc.subjectwide-band code division multiple access (WCDMA)en
dc.subjectCDMA SYSTEMen
dc.titleDynamic rate adaptation and integrated rate and error control in cellular WCDMA networksen
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