Alternating Rate Profile Optimization in Single Stream MIMO Interference Channels
arXiv:1303.4683 · doi:10.1109/LSP.2013.2297351
Abstract
The multiple-input multiple-output interference channel is considered with perfect channel information at the transmitters and single-user decoding receivers. With all transmissions restricted to single stream beamforming, we consider the problem of finding all Pareto optimal rate-tuples in the achievable rate region. The problem is cast as a rate profile optimization problem. Due to its nonconvexity, we resort to an alternating approach: For fixed receivers, optimal transmission is known. For fixed transmitters, we show that optimal receive beamforming is a solution to an inverse field of values problem. We prove the solution's stationarity and compare it with existing approaches.
submitted to IEEE Signal Processing Letters, 4 pages, 3 figures, 1 table
References in corpus (3)
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- On the Pareto-Optimal Beam Structure and Design for Multi-User MIMO Interference Channels
- Pareto Boundary of the Rate Region for Single-Stream MIMO Interference Channels: Linear Transceiver Design