Title :
On the optimality of incremental redundancy LAST coding
Author :
El Gamal, Hesham ; Caire, Giuseppe ; Damen, Mohamed Oussama
Author_Institution :
Dept. of ECE, Ohio State Univ., Columbus, OH, USA
Abstract :
In this paper, we establish the optimality of incremental redundancy lattice space-time (IR-LAST) coding scheme in terms of achieving the optimal tradeoff of the MIMO ARQ channel. An integral component of the optimal IR-LAST coding scheme is a list decoder, based on the MMSE lattice decoding principle, for joint error detection and correction. Throughout the paper, our theoretical claims are validated by numerical results.
Keywords :
MIMO systems; automatic repeat request; channel coding; decoding; error correction codes; error detection codes; least mean squares methods; space-time codes; wireless channels; MIMO ARQ channel; MMSE lattice decoding principle; incremental redundancy lattice space-time coding; joint error correction; joint error detection; list decoder; Automatic repeat request; Delay; Lattices; MIMO; Maximum likelihood decoding; Protocols; Redundancy; Space time codes; Throughput; Transmitters;
Conference_Titel :
Wireless Networks, Communications and Mobile Computing, 2005 International Conference on
Print_ISBN :
0-7803-9305-8
DOI :
10.1109/WIRLES.2005.1549630
