Multilevel structured low-density parity-check codes for AWGN and Rayleigh channels
Multilevel structured low-density parity-check codes for AWGN and Rayleigh channels
We propose a novel class of protograph low-density parity-check (LDPC) codes having a combinatorial rather than a random structure, which are termed multilevel-structured (MLS) LDPC codes. It is demonstrated that they posses a strikingly simple structure and, thus, benefit from reduced storage requirements, hardware-friendly implementations, and low-complexity encoding. Our simulation results provided for both additive white Gaussian noise (AWGN) and uncorrelated Rayleigh (UR) channels demonstrate that these advantages accrue without compromising the attainable bit error ratio (BER) and block error ratio (BLER) performance, when compared with their previously proposed more complex random-construction-based counterparts, as well as with other structured codes of the same length.
3311-3320
Bonello, Nicholas
77f072ac-4497-40d5-a916-d3cc5689c102
Chen, Sheng
9310a111-f79a-48b8-98c7-383ca93cbb80
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1
September 2010
Bonello, Nicholas
77f072ac-4497-40d5-a916-d3cc5689c102
Chen, Sheng
9310a111-f79a-48b8-98c7-383ca93cbb80
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1
Bonello, Nicholas, Chen, Sheng and Hanzo, Lajos
(2010)
Multilevel structured low-density parity-check codes for AWGN and Rayleigh channels.
IEEE Transactions on Vehicular Technology, 59 (7), .
Abstract
We propose a novel class of protograph low-density parity-check (LDPC) codes having a combinatorial rather than a random structure, which are termed multilevel-structured (MLS) LDPC codes. It is demonstrated that they posses a strikingly simple structure and, thus, benefit from reduced storage requirements, hardware-friendly implementations, and low-complexity encoding. Our simulation results provided for both additive white Gaussian noise (AWGN) and uncorrelated Rayleigh (UR) channels demonstrate that these advantages accrue without compromising the attainable bit error ratio (BER) and block error ratio (BLER) performance, when compared with their previously proposed more complex random-construction-based counterparts, as well as with other structured codes of the same length.
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TVT-2010-9.pdf
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Published date: September 2010
Organisations:
Southampton Wireless Group
Identifiers
Local EPrints ID: 271571
URI: http://eprints.soton.ac.uk/id/eprint/271571
ISSN: 0018-9545
PURE UUID: 6933cd29-3356-4915-87ff-42081aaa0b44
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Date deposited: 20 Sep 2010 08:24
Last modified: 18 Mar 2024 02:34
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Contributors
Author:
Nicholas Bonello
Author:
Sheng Chen
Author:
Lajos Hanzo
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