Conjugate gradient-based soft-output detection and precoding in massive MIMO systems

  title={Conjugate gradient-based soft-output detection and precoding in massive MIMO systems},
  author={Bei Yin and Michael Wu and Joseph R. Cavallaro and Christoph Studer},
  journal={2014 IEEE Global Communications Conference},
Massive multiple-input multiple-output (MIMO) promises improved spectral efficiency, coverage, and range, compared to conventional (small-scale) MIMO wireless systems. Unfortunately, these benefits come at the cost of significantly increased computational complexity, especially for systems with realistic antenna configurations. To reduce the complexity of data detection (in the uplink) and precoding (in the downlink) in massive MIMO systems, we propose to use conjugate gradient (CG) methods… CONTINUE READING
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