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arXiv · 1202.0445

Iterative Mode-Dropping for the Sum Capacity of MIMO-MAC with Per-Antenna Power Constraint

Yang Zhu·Mai Vu
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Abstract

We propose an iterative mode-dropping algorithm that optimizes input signals to achieve the sum capacity of the MIMO-MAC with per-antenna power constraint. The algorithm successively optimizes each user's input covariance matrix by applying mode-dropping to the equivalent single-user MIMO rate maximization problem. Both analysis and simulation show fast convergence. We then use the algorithm to briefly highlight the difference in MIMO-MAC capacities under sum and per-antenna power constraints.

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Yang Zhu, Mai Vu. 2012-02-02. Iterative Mode-Dropping for the Sum Capacity of MIMO-MAC with Per-Antenna Power Constraint. https://arxiv.org/abs/1202.0445

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