Power Distribution/Allocation In Multirate Wideband CDMA Systems

Document Type

Article

Publication Date

9-1-2006

Department

Computing

School

Computing Sciences and Computer Engineering

Abstract

A unified approach for power distribution and allocation in a multirate wideband CDMA system is investigated. It is shown that the traffic demand and the background disturbance fully govern the feasibility of the system and the optimal power distribution solutions, where the traffic demand is specified by the user QoS requirement, data rate, and spread spectrum bandwidth; the background disturbance includes the background noise and the intercell interference. Closed form expressions of the optimal power allocation, subject to power constraints in the practical system design, are derived. Convergent conditions are applied to evaluate the capacity region of the system. Numerical examples are provided to illustrate the applications of the obtained theoretical results.

Publication Title

IEEE Transactions on Wireless Communications

Volume

5

Issue

9

First Page

2458

Last Page

2467

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