Luby Transform Coding Aided Iterative Detection for Downlink SDMA Systems
Luby Transform Coding Aided Iterative Detection for Downlink SDMA Systems
A Luby Transform (LT) coded downlink Spatial Division Multiple Access (SDMA) system using iterative detection is proposed, which invokes a low-complexity near-Maximum-Likelihood (ML) Sphere Decoder (SD). The Ethernet-based Internet section of the transmission chain inflicts random packet erasures, which is modelled by the Binary Erasure Channel (BEC), which the wireless downlink imposes both fading and noise. A novel log-Likelihood Ratio based packet reliability metric is used for identifying the channel-decoded packets, which are likely to be error-infested. Packets having residual errors must not be passed on to the KT decoder for the sake of avoiding LT-decoding –induced error propagation. The proposed scheme is capable of maintaining an infinitesimally low packet error ratio in the downlink of the wireless Internet for Eb/n0 values in excess of about 3dB.
397-402
Wei, C-Y
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Nguyen Dang, T
0f9e7331-0bb3-4303-8034-b7bb119596ac
Wu, N
e9f4d835-cf2f-4563-9f57-6306d5ccc0da
Akhtman, J.
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Yang, L-L
ae425648-d9a3-4b7d-8abd-b3cfea375bc7
Hanzo, L
66e7266f-3066-4fc0-8391-e000acce71a1
2007
Wei, C-Y
3f1bf024-c020-42c3-9bfe-0a45728c945d
Nguyen Dang, T
0f9e7331-0bb3-4303-8034-b7bb119596ac
Wu, N
e9f4d835-cf2f-4563-9f57-6306d5ccc0da
Akhtman, J.
d4fd2b26-c123-463d-847c-80adc83a89fa
Yang, L-L
ae425648-d9a3-4b7d-8abd-b3cfea375bc7
Hanzo, L
66e7266f-3066-4fc0-8391-e000acce71a1
Wei, C-Y, Nguyen Dang, T, Wu, N, Akhtman, J., Yang, L-L and Hanzo, L
(2007)
Luby Transform Coding Aided Iterative Detection for Downlink SDMA Systems.
IEEE SiPS, Shanghai, China.
17 - 19 Oct 2007.
.
Record type:
Conference or Workshop Item
(Paper)
Abstract
A Luby Transform (LT) coded downlink Spatial Division Multiple Access (SDMA) system using iterative detection is proposed, which invokes a low-complexity near-Maximum-Likelihood (ML) Sphere Decoder (SD). The Ethernet-based Internet section of the transmission chain inflicts random packet erasures, which is modelled by the Binary Erasure Channel (BEC), which the wireless downlink imposes both fading and noise. A novel log-Likelihood Ratio based packet reliability metric is used for identifying the channel-decoded packets, which are likely to be error-infested. Packets having residual errors must not be passed on to the KT decoder for the sake of avoiding LT-decoding –induced error propagation. The proposed scheme is capable of maintaining an infinitesimally low packet error ratio in the downlink of the wireless Internet for Eb/n0 values in excess of about 3dB.
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Published date: 2007
Additional Information:
Event Dates: 17-19 Oct 2007
Venue - Dates:
IEEE SiPS, Shanghai, China, 2007-10-17 - 2007-10-19
Organisations:
Southampton Wireless Group
Identifiers
Local EPrints ID: 264956
URI: http://eprints.soton.ac.uk/id/eprint/264956
PURE UUID: 8f6e7053-a26f-4569-9658-dd3e56da8193
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Date deposited: 12 Dec 2007 15:17
Last modified: 18 Mar 2024 02:49
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Contributors
Author:
C-Y Wei
Author:
T Nguyen Dang
Author:
N Wu
Author:
J. Akhtman
Author:
L-L Yang
Author:
L Hanzo
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