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

Zummo, S.A. and Stark, W.E. (2006) Performance analysis and iterative decoding of I-Q trellis space-time codes. Communications, IEE Proceedings-, 153.

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Abstract

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.



Item Type:Article
Date:April 2006
Date Type:Publication
Subjects:Computer
Divisions:College Of Engineering Sciences > Electrical Engineering Dept
Creators:Zummo, S.A. and Stark, W.E.
ID Code:14437
Deposited By:KFUPM ePrints Admin
Deposited On:24 Jun 2008 16:36
Last Modified:12 Apr 2011 13:14

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