Robust MISO downlink precoder design with per-antenna power constraints
作者： Mostafa Medra , Timothy N. Davidson
DOI: 10.1109/SPAWC.2015.7227104
关键词: Control theory 、 Base station 、 Telecommunications link 、 Signal processing algorithms 、 Robustness (computer science) 、 Channel state information 、 Outage probability 、 Engineering 、 Transmitted power
摘要: We consider the design of a linear precoder for multiple-input single-output (MISO) downlink system that seeks to mitigate impact imperfections in channel state information (CSI) is available at base station (BS). The goal minimize outage probability signal-to-interference-and-noise ratio (SINR) targets specified by receivers, while satisfying constraints on power transmitted each antenna and total constraint. proposed algorithm exploits recently developed broadly applicable approximation probability. That results problem formulation can be efficiently solved adapting existing low-computational-cost algorithms scenarios with perfect CSI per-antenna constraints. Simulation show robust designs uniform near-uniform distributions across transmitting antennas obtained without substantial degradation
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