Channel code-division multiple access and its multilevel-structured LDPC-based instantiation
Channel code-division multiple access and its multilevel-structured LDPC-based instantiation
In this paper, we introduce and outline the concept of channel code-division multiple access using a design example based on the recently proposed multilevel-structured (MLS) low-density parity-check (LDPC) codes. We succeeded in making the memory requirements of the multiuser transceiver to become practically independent of the total number of users supported by the system, as well as ascertain that each user benefits from the same level of protection. Finally, we will demonstrate that despite their beneficial compact structure, the proposed MLS LDPC codes do not suffer from any bit-error-ratio or block-error-ratio performance degradation, when compared to an otherwise identical benchmarker scheme using significantly more complex LDPC codes having pseudorandom parity-check matrices.
code division multiple access, parity check codes, transceivers
2549-2553
Bonello, N.
c5dfb191-08e7-469b-af90-483b3f71b3c7
Zhang, Rong
3be8f78f-f079-4a3f-a151-76ecd5f378f4
Chen, Sheng
9310a111-f79a-48b8-98c7-383ca93cbb80
Hanzo, L.
66e7266f-3066-4fc0-8391-e000acce71a1
May 2009
Bonello, N.
c5dfb191-08e7-469b-af90-483b3f71b3c7
Zhang, Rong
3be8f78f-f079-4a3f-a151-76ecd5f378f4
Chen, Sheng
9310a111-f79a-48b8-98c7-383ca93cbb80
Hanzo, L.
66e7266f-3066-4fc0-8391-e000acce71a1
Bonello, N., Zhang, Rong, Chen, Sheng and Hanzo, L.
(2009)
Channel code-division multiple access and its multilevel-structured LDPC-based instantiation.
IEEE Transactions on Vehicular Technology, 58 (5), .
(doi:10.1109/TVT.2008.2009560).
Abstract
In this paper, we introduce and outline the concept of channel code-division multiple access using a design example based on the recently proposed multilevel-structured (MLS) low-density parity-check (LDPC) codes. We succeeded in making the memory requirements of the multiuser transceiver to become practically independent of the total number of users supported by the system, as well as ascertain that each user benefits from the same level of protection. Finally, we will demonstrate that despite their beneficial compact structure, the proposed MLS LDPC codes do not suffer from any bit-error-ratio or block-error-ratio performance degradation, when compared to an otherwise identical benchmarker scheme using significantly more complex LDPC codes having pseudorandom parity-check matrices.
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TVTBZCH08.pdf
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Published date: May 2009
Additional Information:
Imported from ISI Web of Science
Keywords:
code division multiple access, parity check codes, transceivers
Organisations:
Southampton Wireless Group
Identifiers
Local EPrints ID: 270052
URI: http://eprints.soton.ac.uk/id/eprint/270052
ISSN: 0018-9545
PURE UUID: ffd609da-1d73-4b7e-85c0-aa6ffc2b63a5
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Date deposited: 21 Apr 2010 07:46
Last modified: 18 Mar 2024 02:34
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Contributors
Author:
N. Bonello
Author:
Rong Zhang
Author:
Sheng Chen
Author:
L. Hanzo
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