Gaussian codes and weighted nearest neighbor decoding in fading multiple-antenna channels

@article{Weingarten2004GaussianCA,
  title={Gaussian codes and weighted nearest neighbor decoding in fading multiple-antenna channels},
  author={Hanan Weingarten and Yossef Steinberg and Shlomo Shamai},
  journal={IEEE Transactions on Information Theory},
  year={2004},
  volume={50},
  pages={1665-1686}
}
We investigate the fading multiple-antenna channel. The decoder is assumed to possess imperfect channel fading information. A modified nearest neighbor decoder with an innovative weighting factor is introduced and an expression for the generalized mutual information (GMI), the achievable rate, is obtained. We show that under certain conditions the achievable rate is equivalent to that of a fading multiple-antenna Gaussian channel where fading is known to the receiver and is equal to the channel… CONTINUE READING
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