Low-complexity robust MISO downlink precoder optimization for the limited feedback case
作者： Mostafa Medra , Wing-Kin Ma , Timothy N. Davidson
DOI: 10.1109/ICASSP.2015.7178543
关键词:
摘要: We consider the design of linear precoder for a multiple-input single-output (MISO) downlink in system that employs limited feedback using Grassmannian quantization. The goal is to minimize outage probability target signal-to-interference-andnoise ratio (SINR) under transmitted power constraint. By approximating constraint by zero-outage region, employing semidefinite relaxation, and applying an extension S-Lemma, problem converted into quasi-convex problem. Insights structure solution generate alternate formulation provides greater robustness presence significant uncertainties has quasi-closed form solution.
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