Title :
Scalable MIMO ARQ Retransmission using Differential Space-Time Block Codes
Author :
Kazemi, Tahmineh ; Ding, Zhi
Author_Institution :
Department of Electrical and Computer Engineering, University of California, Davis, Davis, CA 95616. Email: tkazemi@ucdavis.edu
Abstract :
Multi-input multi-output (MIMO) communication systems provide diversity and coding gain over that of a single antenna system. Furthermore, automatic repeat request (ARQ) retransmission provides time diversity and improves performance and reliability. We investigate partial ARQ in a fast fading MIMO channel environment when coherent detection is hard to realize. We present a scalable partial ARQ retransmission scheme under differential space-time block codes where the advantages of differential modulation technique with diversity and coding gain of space-time block codes are combined to improve MIMO-ARQ performance and reliability. By providing scalability under different channel qualities, scalable retransmission lowers the bandwidth requirement and improves the effective throughput.
Keywords :
Automatic repeat request; Bandwidth; Block codes; Delay effects; Error correction; Fading; MIMO; Maximum likelihood decoding; Receiving antennas; Throughput;
Conference_Titel :
Military Communications Conference, 2007. MILCOM 2007. IEEE
Conference_Location :
Orlando, FL, USA
Print_ISBN :
978-1-4244-1513-7
Electronic_ISBN :
978-1-4244-1513-7
DOI :
10.1109/MILCOM.2007.4454923
