NDLI: Type-1 hybrid-ARQ using MTCM spatio-temporal vector coding for MIMO systems

Content Provider	IEEE Xplore Digital Library
Author	Zhihong Ding Rice, M.
Copyright Year	2003
Description	Author affiliation: Dept. of Electr. & Comput. Eng., Brigham Young Univ., Provo, UT, USA (Zhihong Ding; Rice, M.)
Abstract	A system that combines MTCM modified for type-I hybrid-ARQ error control with Spatio-Temporal Vector Coding (STVC) for use over a slowly varying MIMO channel is presented. An idealistic retransmission protocol is defined that maximizes the channel utilization is described and analyzed. Numerical examples, based on a set of simple 8-state trellis codes providing a granularity of 0.5 bit per 2-dimensional symbol, demonstrate that this simple type-I hybrid-ARQ system can reduce the code gap by the same amount as an FEC system based on a set of 64-state trellis codes. This shows that type-I hybrid-ARQ STVC can close the code gap (the SNR gap between actual performance and channel capacity) without an increase in the code complexity or a decrease in performance. We also demonstrate the limitations of this approach: as the bit error rate increases and the probability of retransmission increases, the channel utilization drops. As a consequence, the code gap does not decrease or even increases.
Starting Page	2758
Ending Page	2762
File Size	292402
Page Count	5
File Format	PDF
ISBN	0780378024
DOI	10.1109/ICC.2003.1204491
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2003-05-11
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	MIMO Protocols Baseband Receiving antennas Transmitting antennas Convolutional codes Forward error correction Channel capacity Bit error rate AWGN
Content Type	Text
Resource Type	Article

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