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Joint power allocation and base-station assignment based on pricing for the downlink in multi-class CDMA networks

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3 Author(s)
Jang Won Lee ; Sch. of Electr. & Comput. Eng., Purdue Univ., West Lafayette, IN, USA ; Mazumdar, R.R. ; Shroff, N.B.

In this paper, we study a joint power allocation and base-station assignment problem for the downlink in multi-class CDMA networks. In a previous paper (J.W. Lee et al., 2002), we developed a power allocation scheme based on a utility and pricing framework considering a single cell in the system. In this paper, we consider a multi-cell system in which each cell uses the power allocation algorithm developed in (J.W. Lee et al., 2002). Based on the power allocation algorithm, we propose a pricing based base-station assignment algorithm, which results in a joint power allocation and base-station assignment scheme. In this algorithm, a base-station is assigned to a mobile taking into account the congestion level of the cell as well as the transmission environment between the base-station and the mobile. We compare the performance of the proposed algorithm with that of the traditional SIR based base-station assignment algorithm. The result shows that our proposed algorithm outperforms the SIR based algorithm.

Published in:

Vehicular Technology Conference, 2003. VTC 2003-Spring. The 57th IEEE Semiannual  (Volume:4 )

Date of Conference:

22-25 April 2003