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Numerical Algorithms for Multi-Cell Optimal Downlink Beamforming Problem with Per-Base Station Power Constraints

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4 Author(s)

Coordinated scheduling is a hot topic recently. Inter-cell interference is crucial to the improvement of system throughput, especially in OFDMA system. In this work, the optimization of beamforming in multiple-input single-output (MISO) downlink system is considered. The uplink-downlink duality has been widely used in this sort of research. By the conclusion of a previous work, we provide some practical iterative algorithms which help to obtain the beamformers satisfying the necessary optimality conditions of the dual uplink problem. Simulation results show the convergence and the efficiency of proposed algorithms.

Published in:

Vehicular Technology Conference (VTC 2010-Spring), 2010 IEEE 71st

Date of Conference:

16-19 May 2010