Generalized Joint Shuffled Scheduling Decoding Algorithm for the JSCC System Based on Protograph-LDPC Codes

Xu, Zhiping; Wang, Lin; Hong, Shaohua; Chen, Guanrong

doi:10.1109/access.2021.3112740

Cited by 4 publications

(2 citation statements)

References 39 publications

(41 reference statements)

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“…J-V curve is used to understand DSSC performance. The JSC is normalized to the DSSC active area; thus, the curves can easily be compared from different samples [30]. The J-V curve in DSSC is based on liquid electrolytes and membrane compositions at a light intensity of 4.5 × 10 -4 mW.cm -2 .…”

Section: Efficiency Decrease Of Dsscmentioning

confidence: 99%

The Effect of Polyetherimide Polymer Membrane Composition on the Performance Efficiency of Dye Sensitized Solar Cell (DSSC) Based on Natural Photosensitizer of Butterfly Pea Flowers

Fachrirakarsie,

Kusumawati

2024

J. Pijar.MIPA

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Global energy consumption will grow 1.3% in 2023-2024. This raises concerns about the scarcity of energy sources, most of which come from coal. This research is a true experiment with a one-shot case study design and aims to analyze the Dye-Sensitized Solar Cell (DSSC) from butterfly pea flowers (BPF) extract. However, DSSC has significant problems with liquid electrolyte leakage and solvent evaporation. Therefore, polyetherimide (PEI) membranes were investigated to overcome this problem. The BPF extract was examined for wavelengths, producing 573 nm and 617 nm wavelengths. The band gap was also checked, and it was found to produce 0.52 eV. The membrane used has five variations, where M3 is the most stable, with a reduction in performance efficiency of only 98%. The membrane has a porous surface, asymmetric structure, and a crystallinity degree of 12.77%. Overall, this membrane shows the most optimal performance in DSSC among other membranes.

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Section: Efficiency Decrease Of Dsscmentioning

confidence: 99%

The Effect of Polyetherimide Polymer Membrane Composition on the Performance Efficiency of Dye Sensitized Solar Cell (DSSC) Based on Natural Photosensitizer of Butterfly Pea Flowers

Fachrirakarsie,

Kusumawati

2024

J. Pijar.MIPA

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“…Tis sequential scheduling strategy difers from fooding in that the last updated information is used in the current iteration. Shufed [22,23] and dynamic [16,24] scheduling are two variants of this strategy and allow decoding convergence to accelerate twice as fast as fooding scheduling.…”

Section: Llr Bp Decoding For Ldpc Codesmentioning

confidence: 99%

Embedded Parallel Implementation of LDPC Decoder for Ultra-Reliable Low-Latency Communications

Benhayoun,

Razi,

Mansouri

et al. 2023

Applied Computational Intelligence and Soft Computing

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Ultra-reliable low-latency communications, URLLC, are designed for applications such as self-driving cars and telesurgery requiring a response in milliseconds and are very sensitive to transmission errors. To match the computational complexity of LDPC decoding algorithms to URLLC applications on IoT devices having very limited computational resources, this paper presents a new parallel and low-latency software implementation of the LDPC decoder. First, a decoding algorithm optimization and a compact data structure are proposed. Next, a parallel software implementation is performed on ARM multicore platforms in order to evaluate the latency of the proposed optimization. The synthesis results highlight a reduction in the memory size requirement by 50% and a three-time speedup in terms of processing time when compared to previous software decoder implementations. The reached decoding latency on the parallel processing platform is 150 μs for 288 bits with a bit error ratio of 3.410–9.

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Design and Analysis of Joint Group Shuffled Scheduling Decoding Algorithm for Double LDPC Codes System

Chen

Ren

Zhou

et al. 2023

Entropy

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In this paper, a joint group shuffled scheduling decoding (JGSSD) algorithm for a joint source-channel coding (JSCC) scheme based on double low-density parity-check (D-LDPC) codes is presented. The proposed algorithm considers the D-LDPC coding structure as a whole and applies shuffled scheduling to each group; the grouping relies on the types or the length of the variable nodes (VNs). By comparison, the conventional shuffled scheduling decoding algorithm can be regarded as a special case of this proposed algorithm. A novel joint extrinsic information transfer (JEXIT) algorithm for the D-LDPC codes system with the JGSSD algorithm is proposed, by which the source and channel decoding are calculated with different grouping strategies to analyze the effects of the grouping strategy. Simulation results and comparisons verify the superiority of the JGSSD algorithm, which can adaptively trade off the decoding performance, complexity and latency.

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Generalized Joint Shuffled Scheduling Decoding Algorithm for the JSCC System Based on Protograph-LDPC Codes

Cited by 4 publications

References 39 publications

The Effect of Polyetherimide Polymer Membrane Composition on the Performance Efficiency of Dye Sensitized Solar Cell (DSSC) Based on Natural Photosensitizer of Butterfly Pea Flowers

The Effect of Polyetherimide Polymer Membrane Composition on the Performance Efficiency of Dye Sensitized Solar Cell (DSSC) Based on Natural Photosensitizer of Butterfly Pea Flowers

Embedded Parallel Implementation of LDPC Decoder for Ultra-Reliable Low-Latency Communications

Design and Analysis of Joint Group Shuffled Scheduling Decoding Algorithm for Double LDPC Codes System

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