Reduced-complexity near-capacity downlink iteratively decoded generalized multi-layer space-time coding using irregular convolutional codes
Reduced-complexity near-capacity downlink iteratively decoded generalized multi-layer space-time coding using irregular convolutional codes
This paper presents a low complexity iteratively detected space-time transmission architecture based on Generalized Multi-Layer Space-Time (GMLST) codes and Irregular Convolutional Codes (IRCCs). The GMLST combines the benefits of the Vertical Bell-Labs LAyered Space-Time (VBLAST) scheme and Space-Time Coding (STC). The GMLST is serially concatenated with a Unity-Rate Code (URC) and an IRCC which are used to facilitate near-capacity operation with the aid of an EXtrinsic Information Transfer (EXIT) chart based design. Reduced-complexity iterative multistage Successive Interference Cancellation (SIC) is employed in the GMLST decoder, instead of the significantly more complex Maximum Likelihood (ML) detection. For the sake of approaching the maximum attainable rate, iterative decoding is invoked to achieve decoding convergence by exchanging extrinsic information across the three serial component decoders. Finally, it is shown that the SIC-based iteratively detected IRCC-URC-GMLST system is capable of providing a feasible trade-off between the affordable computational complexity and the achievable system throughput.
684-695
Kong, Lingkun
e5bec724-e074-4808-9a18-2e49bfd94c6b
Ng, Soon Xin
e19a63b0-0f12-4591-ab5f-554820d5f78c
Tee, Ronald Y. S.
b55109b1-43db-4a29-8e70-96425d4c8af9
Maunder, Robert G.
76099323-7d58-4732-a98f-22a662ccba6c
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1
February 2010
Kong, Lingkun
e5bec724-e074-4808-9a18-2e49bfd94c6b
Ng, Soon Xin
e19a63b0-0f12-4591-ab5f-554820d5f78c
Tee, Ronald Y. S.
b55109b1-43db-4a29-8e70-96425d4c8af9
Maunder, Robert G.
76099323-7d58-4732-a98f-22a662ccba6c
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1
Kong, Lingkun, Ng, Soon Xin, Tee, Ronald Y. S., Maunder, Robert G. and Hanzo, Lajos
(2010)
Reduced-complexity near-capacity downlink iteratively decoded generalized multi-layer space-time coding using irregular convolutional codes.
IEEE Transactions on Wireless Communications, 9 (2), .
Abstract
This paper presents a low complexity iteratively detected space-time transmission architecture based on Generalized Multi-Layer Space-Time (GMLST) codes and Irregular Convolutional Codes (IRCCs). The GMLST combines the benefits of the Vertical Bell-Labs LAyered Space-Time (VBLAST) scheme and Space-Time Coding (STC). The GMLST is serially concatenated with a Unity-Rate Code (URC) and an IRCC which are used to facilitate near-capacity operation with the aid of an EXtrinsic Information Transfer (EXIT) chart based design. Reduced-complexity iterative multistage Successive Interference Cancellation (SIC) is employed in the GMLST decoder, instead of the significantly more complex Maximum Likelihood (ML) detection. For the sake of approaching the maximum attainable rate, iterative decoding is invoked to achieve decoding convergence by exchanging extrinsic information across the three serial component decoders. Finally, it is shown that the SIC-based iteratively detected IRCC-URC-GMLST system is capable of providing a feasible trade-off between the affordable computational complexity and the achievable system throughput.
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Published date: February 2010
Organisations:
Southampton Wireless Group
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Local EPrints ID: 268323
URI: https://eprints.soton.ac.uk/id/eprint/268323
PURE UUID: 575225c7-9988-48a2-9dc0-6b6d85fbca76
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Date deposited: 17 Dec 2009 12:56
Last modified: 06 Jun 2018 13:15
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Author:
Lingkun Kong
Author:
Soon Xin Ng
Author:
Ronald Y. S. Tee
Author:
Robert G. Maunder
Author:
Lajos Hanzo
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