NOMA Joint Decoding based on Soft-Output Ordered-Statistics Decoder for Short Block Codes

Yue, Chentao; Kosasih, Alva; Shirvanimoghaddam, Mahyar; Park, Giyoon; Park, Ok-Sun; Hardjawana, Wibowo; Vucetic, Branka; Li, Yonghui

doi:10.1109/icc45855.2022.9839092

Cited by 6 publications

(3 citation statements)

References 21 publications

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“…Furthermore, in order to verify the performance of the decoding algorithm, the implementation architecture of the algorithm is completed on the FPGA platform. The BER performances of the (15, 5) BCH code, (31,21) BCH code, (63, 30) BCH code, and (23,12) Golay code are evaluated on this platform. The experimental results show that the performance of the proposed decoding algorithm is close to the ML algorithm, and the decoder achieves a good trade-off between decoding complexity and error correction performance.…”

Section: Discussionmentioning

confidence: 99%

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Soft Decision Decoding with Cyclic Information Set and the Decoder Architecture for Cyclic Codes

2023

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The soft decision decoding algorithm for cyclic codes, especially the maximum likelihood (ML) decoding algorithm, can obtain significant performance superior to that of algebraic decoding, but the complexity is much higher. To deal with this problem, an improved soft decision decoding algorithm based on a cyclic information set and its efficient implementation architecture are proposed. This algorithm employs the property of the cyclic codes to generate a series of cyclic information sequences by circularly shifting, constructing the cyclic information set. Then, a limited number of candidate information sequences are efficiently generated using an iterative computation method, and the candidate codewords are generated using the very concise encoding method of the cyclic codes. Furthermore, the efficient hardware architecture based on systolic arrays is also proposed to generate candidate information sequences and to select the optimal candidate codewords. An emulation platform is constructed to verify the error correction performance and to determine the optimal decoder parameters. Emulation results indicate that, with appropriate parameter selection, the proposed decoding algorithm can achieve a bit error rate approaching the ML performance while maintaining low complexity.

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Section: Discussionmentioning

confidence: 99%

“…Without using the MRB, this method only needs a few candidate codewords, which is practical for hardware implementation [28,29]. The application of the OSD algorithms for short codes in wireless communications, especially the ultra-reliable and low latency communication (URLLC), has also been investigated [30][31][32].…”

Section: Introductionmentioning

confidence: 99%

Soft Decision Decoding with Cyclic Information Set and the Decoder Architecture for Cyclic Codes

2023

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“…Soft OSD (SOSD) [32] is a variant of OSD and modifies the output of OSD into soft information. The authors in [33] propose a low-complexity SOSD algorithm with a similar mutual information transform property to the original SOSD, and the decoding stop condition can effectively reduce complexity. Therefore, we can utilize the OSD to design corresponding decoder for the staircase LDPC codes over the synodic period FSO channel.…”

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confidence: 99%

Synodic Period Channel Modeling and Coding Scheme for Deep Space Optical Communications

Zhang,

Jiao,

Zhang

et al. 2024

IEEE Trans. Aerosp. Electron. Syst.

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In this paper, we design an end-to-end free-space optical (FSO) communication coding scheme for deep space exploration. Take the Mars exploration as an example, we first establish the synodic period FSO channel model by taking account into the solar scintillation, and derive the corresponding upper bound of bit error rate (BER) for L-ary pulse position modulation (LPPM). Then, we propose a staircase code-ordered statistics decoder (SC-OSD) algorithm for staircase low density parity check (LDPC) codes under synodic period FSO channel, and derive the probability density function (PDF) and Gaussian approximation of the ordered statistics of SC-OSD algorithm, which provide a guideline to derive lower bound of block error rate (BLER) and reduce the decoding complexity of SC-OSD. Furthermore, we propose a soft OSD-sliding window decoding (SOSD-SWD) algorithm for staircase LDPC codes under scintillation states to address the error floor problem in conventional SWD decoder. Simulation results validate that the proposed SOSD-SWD algorithm can achieve much lower BER than the related algorithms in all scintillation conditions, and shed light to tradeoff the achievable BER and complexities under different scintillation conditions.

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Soft OSD-Sliding Window Decoding for Staircase LDPC Codes in Deep Space Communications

Zhang,

Jiao,

Wang

et al. 2023

2023 IEEE/CIC International Conference on Communications in China (ICCC)

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NOMA Joint Decoding based on Soft-Output Ordered-Statistics Decoder for Short Block Codes

Cited by 6 publications

References 21 publications

Soft Decision Decoding with Cyclic Information Set and the Decoder Architecture for Cyclic Codes

Soft Decision Decoding with Cyclic Information Set and the Decoder Architecture for Cyclic Codes

Synodic Period Channel Modeling and Coding Scheme for Deep Space Optical Communications

Soft OSD-Sliding Window Decoding for Staircase LDPC Codes in Deep Space Communications

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