Title :
Hybrid ARQ schemes in multiple-antenna slow fading channels: A capacity perspective
Author :
Shen, Cong ; Fitz, Michael P.
Author_Institution :
Electr. Eng. Dept., Univ. of California, Los Angeles, CA
Abstract :
This paper studies Hybrid ARQ (HARQ) schemes in a multiple-antenna slow fading channel. Optimal average rate performance of several well-known HARQ protocols is analyzed. We then proceed to the design of Space-Time Coding (STC) for MIMO-HARQ channel. Information-theoretic performance measures are used to optimize the rate assignment and derive the optimum STC design criterion. Numerical comparisons are made to evaluate existing ST codes and illustrate the gain of MIMO-HARQ.
Keywords :
MIMO communication; fading channels; MIMO-HARQ channel; hybrid ARQ scheme; information-theoretic performance measures; multiple antenna slow fading channel; space-time coding; Automatic repeat request; Channel capacity; Delay; Fading; Feedback; Forward error correction; Information analysis; MIMO; Protocols; Throughput;
Conference_Titel :
Signals, Systems and Computers, 2008 42nd Asilomar Conference on
Conference_Location :
Pacific Grove, CA
Print_ISBN :
978-1-4244-2940-0
Electronic_ISBN :
1058-6393
DOI :
10.1109/ACSSC.2008.5074636
