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 (CCDMA) using a design example based on the recently proposed Multilevel Structured (MLS) LDPC codes. We succeeded in making the memory requirements of the multi-user 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 Quality of Service (QoS). Finally, we will demonstrate that despite their beneficial compact structure, the proposed MLS LDPC codes do not suffer from any Bit Error Ratio (BER) or Block Error Ratio (BLER) performance degradation, when compared to an otherwise identical benchmarker scheme using significantly more complex LDPC codes having pseudo-random parity-check matrices.
1-5
Bonello, Nicholas
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Zhang, Rong
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Chen, Sheng
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Hanzo, Lajos
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September 2008
Bonello, Nicholas
8a9b4532-2e4e-40e4-9207-49009756f1c2
Zhang, Rong
3be8f78f-f079-4a3f-a151-76ecd5f378f4
Chen, Sheng
9310a111-f79a-48b8-98c7-383ca93cbb80
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1
Bonello, Nicholas, Zhang, Rong, Chen, Sheng and Hanzo, Lajos
(2008)
Channel code division multiple access and its multilevel structured LDPC based instantiation.
At Proceedings of VTC2008-Fall
Proceedings of VTC2008-Fall, Canada.
21 - 24 Sep 2008.
.
Record type:
Conference or Workshop Item
(Paper)
Abstract
In this paper, we introduce and outline the concept of Channel Code Division Multiple Access (CCDMA) using a design example based on the recently proposed Multilevel Structured (MLS) LDPC codes. We succeeded in making the memory requirements of the multi-user 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 Quality of Service (QoS). Finally, we will demonstrate that despite their beneficial compact structure, the proposed MLS LDPC codes do not suffer from any Bit Error Ratio (BER) or Block Error Ratio (BLER) performance degradation, when compared to an otherwise identical benchmarker scheme using significantly more complex LDPC codes having pseudo-random parity-check matrices.
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Published date: September 2008
Venue - Dates:
Proceedings of VTC2008-Fall, Canada, 2008-09-21 - 2008-09-24
Organisations:
Southampton Wireless Group
Identifiers
Local EPrints ID: 266753
URI: https://eprints.soton.ac.uk/id/eprint/266753
PURE UUID: 2f647274-db8b-40a6-985d-fbfe9db464e6
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Date deposited: 03 Oct 2008 08:56
Last modified: 18 Jul 2017 07:12
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Contributors
Author:
Nicholas Bonello
Author:
Rong Zhang
Author:
Sheng Chen
Author:
Lajos Hanzo
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