Constant modulus algorithm aided soft decision directed scheme for blind space-time equalisation of SIMO channels
Constant modulus algorithm aided soft decision directed scheme for blind space-time equalisation of SIMO channels
This paper investigates a blind space–time equaliser (STE) designed for single-input multiple-output (SIMO) systems that employ high-throughput quadrature amplitude modulation schemes. A constant modulus algorithm (CMA) aided soft decision-directed (SDD) scheme, originally derived for low-complexity blind equalisation of single-input single-output channels, is extended to the SIMO scenario. Simulations are conducted to compare the performance of this blind adaptive scheme with another low-complexity blind STE referred to as the CMA aided decision directed (DD) scheme. The results obtained demonstrate that for SIMO systems the CMA aided SDD scheme exhibits advantages over the CMA aided DD arrangement, in terms of its faster convergence speed and lower computational complexity.
2587-2599
Chen, S.
9310a111-f79a-48b8-98c7-383ca93cbb80
Wolfgang, A.
e87811dd-7028-4ac3-90cc-62003ff22202
Hanzo, L.
66e7266f-3066-4fc0-8391-e000acce71a1
November 2007
Chen, S.
9310a111-f79a-48b8-98c7-383ca93cbb80
Wolfgang, A.
e87811dd-7028-4ac3-90cc-62003ff22202
Hanzo, L.
66e7266f-3066-4fc0-8391-e000acce71a1
Chen, S., Wolfgang, A. and Hanzo, L.
(2007)
Constant modulus algorithm aided soft decision directed scheme for blind space-time equalisation of SIMO channels.
Signal Processing, 87 (11), .
Abstract
This paper investigates a blind space–time equaliser (STE) designed for single-input multiple-output (SIMO) systems that employ high-throughput quadrature amplitude modulation schemes. A constant modulus algorithm (CMA) aided soft decision-directed (SDD) scheme, originally derived for low-complexity blind equalisation of single-input single-output channels, is extended to the SIMO scenario. Simulations are conducted to compare the performance of this blind adaptive scheme with another low-complexity blind STE referred to as the CMA aided decision directed (DD) scheme. The results obtained demonstrate that for SIMO systems the CMA aided SDD scheme exhibits advantages over the CMA aided DD arrangement, in terms of its faster convergence speed and lower computational complexity.
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j-sp2007-2
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Published date: November 2007
Organisations:
Southampton Wireless Group
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Local EPrints ID: 264311
URI: http://eprints.soton.ac.uk/id/eprint/264311
ISSN: 0165-1684
PURE UUID: 8d933b1a-9375-42f2-bd14-b72ff983258f
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Date deposited: 16 Jul 2007
Last modified: 18 Mar 2024 02:34
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Author:
S. Chen
Author:
A. Wolfgang
Author:
L. Hanzo
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