Soft-Heuristic Detectors for Large MIMO Systems
作者： Pavol Svac , Florian Meyer , Erwin Riegler , Franz Hlawatsch
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摘要: We propose low-complexity detectors for large MIMO systems with BPSK or QAM constellations. These work at the bit level and consist of three stages. In first stage, maximum likelihood decisions on certain bits are made in an efficient way. second soft values remaining calculated. third these detected by means a heuristic programming method high-dimensional optimization that uses (“soft-heuristic” algorithm). two soft-heuristic algorithms different performance complexity. also consider feedback results stage computing improved stage. Simulation demonstrate that, systems, our can outperform state-of-the-art based nulling canceling, semidefinite relaxation, ascent search.
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