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Soft-Decision Decoding of Permutation-Based Optical Codes for a Multiple Access System
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DOI：10.1109/LCOMM.2021.3090858.png)
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A multiple access (MA) soft-decision (SD) decoder based on the cost rankings of the channel output matrix, is proposed and applied in an optical wireless communication system in which permutation-based optical codes (POCs) are used. The proposed decoder determines the possible transmitted MA codewords by implementing the Hungarian and Murty's algorithms to solve and rank the costs of all the possible codewords of the received signal. The performance of the proposed Hungarian-Murty (HM) decoder is evaluated in comparison with two decoders based on the Exhaustive Search (ES) technique, in terms of computational complexity and block error rate (BER). It is found that when POCs are employed, the proposed HM decoder achieves better BER performance with a low decoding complexity in comparison to the ES based decoders.
Keyword:
Decoding
Adaptive optics
Optical receivers
Optical pulses
Matrix converters
Computational complexity
Wireless communication
Binary asymmetric error
exhaustive search
Hungarian-Murty decoding
permutation optical codes
期刊
IF:
4.4
论文数:
1.3W
被引数:
2.2W
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