Near-Capacity Turbo Trellis Coded Modulation Design
Near-Capacity Turbo Trellis Coded Modulation Design
Bandwidth efficient parallel-concatenated Turbo Trellis Coded Modulation (TTCM) schemes were designed for communicating over uncorrelated Rayleigh fading channels. A symbol-based union bound was derived for analysing the error floor of the proposed TTCM schemes. A pair of In-phase (I) and Quadrature-phase (Q) interleavers were employed for interleaving the I and Q components of the TTCM coded symbols, in order to attain an increased diversity gain. The decoding convergence of the IQ-TTCM schemes was analysed using symbol based EXtrinsic Information Transfer (EXIT) charts. The best TTCM component codes were selected with the aid of both the symbol-based union bound and non-binary EXIT charts for the sake of designing capacity-approaching IQ-TTCM schemes in the context of 8PSK, 16QAM and 32QAM signal sets. It will be shown that our TTCM design is capable of approaching the channel capacity within 0.5 dB at a throughput of 4 bit/s/Hz, when communicating over uncorrelated Rayleigh fading channels using 32QAM.
1707-1711
Ng, Soon
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Alamri, Osamah
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Li, Y
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Hanzo, Lajos
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30 September 2007
Ng, Soon
e19a63b0-0f12-4591-ab5f-554820d5f78c
Alamri, Osamah
292e7399-6cdb-4eb6-b0f4-51f738ea04c1
Li, Y
d53810d0-bc88-491d-b315-9b9273d7bf52
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1
Ng, Soon, Alamri, Osamah, Li, Y and Hanzo, Lajos
(2007)
Near-Capacity Turbo Trellis Coded Modulation Design.
IEEE VTC'07 (Fall), Baltimore, MD, United States.
30 Sep - 03 Oct 2007.
.
Record type:
Conference or Workshop Item
(Paper)
Abstract
Bandwidth efficient parallel-concatenated Turbo Trellis Coded Modulation (TTCM) schemes were designed for communicating over uncorrelated Rayleigh fading channels. A symbol-based union bound was derived for analysing the error floor of the proposed TTCM schemes. A pair of In-phase (I) and Quadrature-phase (Q) interleavers were employed for interleaving the I and Q components of the TTCM coded symbols, in order to attain an increased diversity gain. The decoding convergence of the IQ-TTCM schemes was analysed using symbol based EXtrinsic Information Transfer (EXIT) charts. The best TTCM component codes were selected with the aid of both the symbol-based union bound and non-binary EXIT charts for the sake of designing capacity-approaching IQ-TTCM schemes in the context of 8PSK, 16QAM and 32QAM signal sets. It will be shown that our TTCM design is capable of approaching the channel capacity within 0.5 dB at a throughput of 4 bit/s/Hz, when communicating over uncorrelated Rayleigh fading channels using 32QAM.
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Published date: 30 September 2007
Additional Information:
Event Dates: 30 September -3 October 2007
Venue - Dates:
IEEE VTC'07 (Fall), Baltimore, MD, United States, 2007-09-30 - 2007-10-03
Organisations:
Southampton Wireless Group
Identifiers
Local EPrints ID: 264953
URI: http://eprints.soton.ac.uk/id/eprint/264953
PURE UUID: e1d2e1de-9d29-4959-9729-60e03058004d
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Date deposited: 12 Dec 2007 14:50
Last modified: 18 Mar 2024 02:48
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Contributors
Author:
Soon Ng
Author:
Osamah Alamri
Author:
Y Li
Author:
Lajos Hanzo
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