A dynamic hybrid decoder apprroach using EG-LDPC codes for signal processing applications

JC Babu, NM Rao, K Ramana, V Bhaskar - Wireless Personal …, 2022 - Springer
Wireless Personal Communications, 2022Springer
Abstract The Low-Density Parity Check (LDPC) codes of Euclidean Geometry (EG) are
encrypted and decrypted in numerous ways, namely Soft Bit Flipping (SBF), Sequential
Peeling Decoder (SPD), Belief Propagation Decoder (BPD), Majority Logic
Decoder/Detector (MLDD), and Parallel Peeling Decoder (PPD) decoding algorithms. These
algorithms provide aextensive range of trade-offs between latency decoding, power
consumption, hardware complexity-required resources, and error rate performance …
Abstract
The Low-Density Parity Check (LDPC) codes of Euclidean Geometry (EG) are encrypted and decrypted in numerous ways, namely Soft Bit Flipping (SBF), Sequential Peeling Decoder (SPD), Belief Propagation Decoder (BPD), Majority Logic Decoder/Detector (MLDD), and Parallel Peeling Decoder (PPD) decoding algorithms. These algorithms provide aextensive range of trade-offs between latency decoding, power consumption, hardware complexity-required resources, and error rate performance. Therefore, the problem is to communicate a sophisticated technique specifying the both soft and burst errors for effective information transmission. In this research, projected a technique named as Hybrid SBF (HSBF) decoder for EG-LDPC codes, which reduces the decoding complexity and maximizes the signal transmission and reception. In this paper, HSBF is also known as Self Reliability based Weighted Soft Bit Flipping (SRWSBF) Decoder. It is obvious from the outcomes that the proposed technique is better than the decoding algorithms SBF, MLDD, BPD, SPD and PPD. Using Xilinx synthesis and SPARTAN 3e, a simulation model is designed to investigate latency, hardware utilization and power consumption. Average latency of 16.65 percent is found to be reduced. It is observed that in considered synthesis parameters such as number of 4-input LUTs, number of slices, and number of bonded IOBs, excluding number of slice Flip-Flops, hardware utilization is minimized to an average of 4.25 percent. The number of slices Flip-Flops resource use in the proposed HSBF decoding algorithm is slightly higher than other decoding algorithms, i.e. 1.85%. It is noted that, over the decoding algorithms considered in this study, the proposed research study minimizes power consumption by an average of 41.68%. These algorithms are used in multimedia applications, processing systems for security and information.
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