Concatenated Irregular Variable Length Coding and Irregular Unity Rate Coding
Concatenated Irregular Variable Length Coding and Irregular Unity Rate Coding
In this contribution we propose the novel serial concatenation of Irregular Variable Length Coding (IrVLC) and Irregular Unity Rate Coding (IrURC), where we matched the corresponding EXtrinsic Information Transfer (EXIT) functions to each other. This approach facilitates a higher degree of design freedom than matching the EXIT function of an irregular codec to that of a regular codec. As a result, a narrower EXIT chart tunnel can be created, facilitating operation at SNR values that are closer to the channel's capacity bound. The computational complexity and Bit Error Ratio (BER) performance of our IrVLC-IrURC scheme is favourable in comparison to the bench markers that replace either one or both of the irregular codecs by the equivalent-rate regular codec.
variable length coding, VLC, iterative decoding, EXIT chart matching, serial concatenation, joint source and channel coding, trellis, BCJR, soft, irregular coding, free distance, computational complexity, capacity, RVLC, VLEC, reversible variable length coding, variable length error correction coding
978-1-4244-2517-4
Maunder, R. G.
76099323-7d58-4732-a98f-22a662ccba6c
Hanzo, L.
66e7266f-3066-4fc0-8391-e000acce71a1
26 April 2009
Maunder, R. G.
76099323-7d58-4732-a98f-22a662ccba6c
Hanzo, L.
66e7266f-3066-4fc0-8391-e000acce71a1
Maunder, R. G. and Hanzo, L.
(2009)
Concatenated Irregular Variable Length Coding and Irregular Unity Rate Coding.
IEEE Vehicular Technology Conference, Barcelona, Spain.
(doi:10.1109/VETECS.2009.5073457).
Record type:
Conference or Workshop Item
(Paper)
Abstract
In this contribution we propose the novel serial concatenation of Irregular Variable Length Coding (IrVLC) and Irregular Unity Rate Coding (IrURC), where we matched the corresponding EXtrinsic Information Transfer (EXIT) functions to each other. This approach facilitates a higher degree of design freedom than matching the EXIT function of an irregular codec to that of a regular codec. As a result, a narrower EXIT chart tunnel can be created, facilitating operation at SNR values that are closer to the channel's capacity bound. The computational complexity and Bit Error Ratio (BER) performance of our IrVLC-IrURC scheme is favourable in comparison to the bench markers that replace either one or both of the irregular codecs by the equivalent-rate regular codec.
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civlcaiurc.pdf
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Published date: 26 April 2009
Additional Information:
Event Dates: April 2009
Venue - Dates:
IEEE Vehicular Technology Conference, Barcelona, Spain, 2009-04-01
Keywords:
variable length coding, VLC, iterative decoding, EXIT chart matching, serial concatenation, joint source and channel coding, trellis, BCJR, soft, irregular coding, free distance, computational complexity, capacity, RVLC, VLEC, reversible variable length coding, variable length error correction coding
Organisations:
Southampton Wireless Group
Identifiers
Local EPrints ID: 264472
URI: http://eprints.soton.ac.uk/id/eprint/264472
ISBN: 978-1-4244-2517-4
PURE UUID: ba5858ab-2e91-4a45-9a34-c3579782f22d
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Date deposited: 05 Sep 2007
Last modified: 18 Mar 2024 03:09
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Author:
R. G. Maunder
Author:
L. Hanzo
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