Journal article

Optimal Co-Phasing Power Allocation and Capacity of Coordinated OFDM Transmission With Total and Individual Power Constraints

Bing Luo, Phee Lep Yeoh, Brian S Krongold

IEEE Transactions on Communications | Institute of Electrical and Electronics Engineers | Published : 2019


This paper derives the optimal power allocation for a coordinated orthogonal frequency-division multiplexing (OFDM) transmission system in which K coordinated transmission points (CTPs) coherently transmit and allocate power across N subchannels under both total and individual power constraints. In maximizing the system capacity, previous works showed that, under a total power constraint, the optimal transmission strategy is a maximum-ratio transmission (MRT) for CTPs with a waterfilling type of power allocation solution for the subchannels. For CTPs with both total and individual power constraints, we derive a new optimal co-phasing power allocation with the following property: For any give..

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Awarded by Australian Research Council

Funding Acknowledgements

This work was supported in part by ARC DP190100770. This paper was presented in part at the IEEE ICC, Paris, France, 2017 [1]. The associate editor coordinating the review of this paper and approving it for publication was X. Chen. (Corresponding author: Bing Luo.)