Soft list decoding of polar codes
Soft list decoding of polar codes
Soft-output (SO) decoding is proposed for the Logarithmic Successive Cancellation List (Log-SCL) polar decoder for the first time, by exploiting the left-to-right propagation of the Belief Propagation (BP) decoder, which opens new avenues
for its employment in powerful turbo-receivers. In the case of decoding a half-rate polar code having a block length of 1024 bits, the proposed soft list polar decoder achieves a 1:5 dB Block Error Ratio (BLER) performance gain, 50% latency improvement and 26% complexity reduction, compared to the state-of-the-art SO Soft Cancellation (SCAN) polar decoder in a polar-coded Multiple-Input Multiple-Output (MIMO) system. Furthermore, we conceive a Memory-Efficient (ME) soft list polar decoder, which requires only 16% of the soft list polar decoder’s memory, at the cost of slightly increased latency and complexity.
Belief propagation (BP), polar codes, soft decoding, successive cancellation list (SCL) decoding
13921-13926
Xiang, Luping
56d951c0-455e-4a67-b167-f6c8233343b1
Liu, Yusha
711a72e8-e8be-4be4-a79d-ea1413e7012a
Kaykac Egilmez, Zeynep Burcin
071b0c1a-a884-45fc-8dc4-e706c9972a69
Maunder, Robert
76099323-7d58-4732-a98f-22a662ccba6c
Yang, Lieliang
ae425648-d9a3-4b7d-8abd-b3cfea375bc7
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1
Xiang, Luping
56d951c0-455e-4a67-b167-f6c8233343b1
Liu, Yusha
711a72e8-e8be-4be4-a79d-ea1413e7012a
Kaykac Egilmez, Zeynep Burcin
071b0c1a-a884-45fc-8dc4-e706c9972a69
Maunder, Robert
76099323-7d58-4732-a98f-22a662ccba6c
Yang, Lieliang
ae425648-d9a3-4b7d-8abd-b3cfea375bc7
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1
Xiang, Luping, Liu, Yusha, Kaykac Egilmez, Zeynep Burcin, Maunder, Robert, Yang, Lieliang and Hanzo, Lajos
(2020)
Soft list decoding of polar codes.
IEEE Transactions on Vehicular Technology, 69 (11), , [9185047].
(doi:10.1109/TVT.2020.3021258).
Abstract
Soft-output (SO) decoding is proposed for the Logarithmic Successive Cancellation List (Log-SCL) polar decoder for the first time, by exploiting the left-to-right propagation of the Belief Propagation (BP) decoder, which opens new avenues
for its employment in powerful turbo-receivers. In the case of decoding a half-rate polar code having a block length of 1024 bits, the proposed soft list polar decoder achieves a 1:5 dB Block Error Ratio (BLER) performance gain, 50% latency improvement and 26% complexity reduction, compared to the state-of-the-art SO Soft Cancellation (SCAN) polar decoder in a polar-coded Multiple-Input Multiple-Output (MIMO) system. Furthermore, we conceive a Memory-Efficient (ME) soft list polar decoder, which requires only 16% of the soft list polar decoder’s memory, at the cost of slightly increased latency and complexity.
Text
soft-polar-twocol
- Accepted Manuscript
More information
Accepted/In Press date: 31 August 2020
e-pub ahead of print date: 2 September 2020
Keywords:
Belief propagation (BP), polar codes, soft decoding, successive cancellation list (SCL) decoding
Identifiers
Local EPrints ID: 443719
URI: http://eprints.soton.ac.uk/id/eprint/443719
ISSN: 0018-9545
PURE UUID: 1bdb29c5-7db9-4b19-921a-e19256bd81ad
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Date deposited: 09 Sep 2020 16:34
Last modified: 13 Aug 2022 01:44
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