Divide and Conquer: One-bit MIMO-OFDM Detection by Inexact Expectation Maximization
Divide and Conquer: One-bit MIMO-OFDM Detection by Inexact Expectation Maximization
Adopting one-bit analog-to-digital convertors (ADCs) for massive multiple-input multiple-output (MIMO) implementations has great potential in reducing the hardware cost and power consumption. However, distortions caused by quantization raise great challenges. In MIMO orthogonal frequency-division modulation (OFDM) detection, coarse quantization renders the orthogonal separation among subcarriers inapplicable, forcing us to deal …