Downlink Power Allocation with Pricing in CDMA

Conference: PIMRC 2005 - 16th Annual IEEE International Symposium on Personal Indoor and Mobile Radio Communications
09/11/2005 - 09/14/2005 at Berlin, Germany

Proceedings: PIMRC 2005

Pages: 5Language: englishTyp: PDF

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Anand, S. (Samsung India Software Operations, Bangalore, India)
Chockalingam, A. (Department of ECE, Indian Institute of Science, Bangalore, India)

In this paper, we present an approach for power allocation to maximize the effective system throughput with pricing on the downlink in a CDMA system. We present a pricing policy and obtain the optimum powers for the users to maximize the effective system throughput incorporting this pricing policy.We also study the asymptotic behavior of the system (i.e., when the number of users and the available bandwidth are large). We show that in such a system, all users obtain equal SIR at the optimum point irrespective of their locations and processing gains. We also derive an expression for the maximum asymptotic spectral efficiency.