Power and rate assignment policies for best-effort services in WCDMA

Kazmi, M.; Wiberg, N.; Magnusson, P.

doi:10.1109/pimrc.2002.1045449

Cited by 2 publications

(2 citation statements)

References 3 publications

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“…Due to limited resource of wireless CDMA downlinks, which is the well-known total transmission power of base stations, numerous resource (power/rate) allocation algorithms [1,2] are proposed to efficiently distribute the scarce resources in the downlink direction. Recently, cross-layer issues of next generation wireless CDMA systems have been put onto agenda.…”

Section: Introductionmentioning

confidence: 99%

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A novel packet scheduling scheme based on adaptive power/delay for efficient resource allocation in downlink CDMA systems

Sun

Peng

Zhao

Canadian Conference on Electrical and Computer Engineering, 2005.

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A novel voice packet scheduling scheme named Modified Adaptive Priority Queuing (MAPQ) is proposed for CDMA downlinks. Closed-loop power control is employed to closely track fast fading, and provides power inputs for MAPQ. Estimation error is considered when measuring received pilots at mobile stations. An adaptive priority profile is defined in the scheme based on queuing delay and required transmission power, which borrows the idea of composite metric from wired systems. This definition ensures system capacity improvement, packet dropping rate reduction, and fairness. Users are allocated resources according to their priorities in a modified PQ fashion constrained by total power budget of base stations. Numerical results show distinct performance gains of the proposed scheme, comparing to the reference scheme.

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Section: Introductionmentioning

confidence: 99%

“…70%P T is assigned to traffic channel[10]. Respective to practical case we set 3w as total voice power and 11w left for data according to[1].…”

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confidence: 99%