Constrained capacity of linear precoded ARQ in MIMO wireless systems

  title={Constrained capacity of linear precoded ARQ in MIMO wireless systems},
  author={Haitong Sun and Harvind Samra and Zhi Jun Ding and Jonathan H. Manton},
  journal={Proceedings. (ICASSP '05). IEEE International Conference on Acoustics, Speech, and Signal Processing, 2005.},
  pages={iii/425-iii/428 Vol. 3}
The paper investigates the constrained capacity of sequential ARQ linear precoding in flat fading MIMO systems. To utilize fully the time diversity provided by ARQ, we derive the optimal linear ARQ precoders in a flat fading MIMO channel with the objective of maximizing the mutual information delivered by multiple transmissions of the same packet. The capacity-maximizing ARQ precoders combine water-pouring power loading and the optimal pairing of singular vectors in the current retransmission… CONTINUE READING
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