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Browse Journals & Magazines > Communications, IEE Proceedin ...> Volume:153 Issue:2 Help

Performance analysis and iterative decoding of I-Q trellis space-time codes

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2 Author(s)
Zummo, S.A. ; Electr. Eng. Dept., King Fahd Univ. of Pet. & Miner., Dhahran, Saudi Arabia ; Stark, W.E.

I-Q trellis codes are known to increase the time diversity of coded systems. When I-Q codes are used with multiple transmit antennas, the decoding and performance evaluation requires the construction of the high-complexity super-trellis of the component codes. In the paper, the bit error probability and the design criteria of I-Q ST codes are derived using the transfer functions of the component codes. Conditions for the geometrical uniformity of I-Q space-time (ST) codes are derived from the geometrical uniformity of the component codes. In addition, a low-complexity iterative receiver for I-Q ST codes is presented. The receiver essentially performs iterative detection and decoding. Results show that three iterations of the iterative receiver performs very close to the optimal decoding.

Published in:
Communications, IEE Proceedings-  (Volume:153 ,  Issue: 2 )

Date of Publication: 1 April 2006

Page(s):
233 - 237
ISSN :
1350-2425
INSPEC Accession Number:
8867051
Digital Object Identifier :
10.1049/ip-com:20045272
Date of Current Version :
27 March 2006
Issue Date :
1 April 2006
Sponsored by :
IET

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