MIMO ARQ With Multibit Feedback: Outage Analysis

  title={MIMO ARQ With Multibit Feedback: Outage Analysis},
  author={Khoa D. Nguyen and Lars Kildehx00F8j Rasmussen and Albert Guill{\'e}n i F{\`a}bregas and Nick Letzepis},
  journal={IEEE Transactions on Information Theory},
This paper studies the asymptotic outage performance of incremental redundancy automatic-repeat-request (INR-ARQ) transmission over multiple-input multiple-output (MIMO) block-fading channels with discrete input constellations. We first show that transmission with random codes using a discrete signal constellation across all transmit antennas achieves the optimal outage diversity given by the Singleton bound. The optimal SNR-exponent and outage diversity of INR-ARQ transmission over the MIMO… CONTINUE READING
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