Low power reduced-complexity error-resilient MIMO detector
Chung-An Shen, Muhammad S. Khairy, Ahmed M. Eltawil, Fadi Kurdahi · 2014
This paper presents a reduced-complexity low power error-resilient K-Best MIMO Detector. A novel tree-enumeration method is proposed such that the error-resilient detection processes a reduced search space and is more suitable for VLSI design. Moreover, a circuit-level optimization is employed to further simplify the complexity. Experimental results are given showing that the circuit-level optimization decreases the detector area by 15% and power consumption by 41%. Moreover, we show that the proposed error-resilient MIMO detector with reduced-voltage memory can achieve a total of 19% reduction in power consumption compared with the conventional scheme, while still maintaining close-to optimal PER performance.