Improving the Performance of Layered Iterative minsum Approximation Message Passing Decoding Algorithm for 5G NR LDPC Codes

In order to cater to the needs of the 5G standard, one of the prominent solutions in terms of high coding gain, high throughput and low power dissipation is the 5G NR LDPC (New Radio Low Density Parity Check) codes which have been adopted by 5G Standard. LDPC codes are the successful Third Generatio...

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Veröffentlicht in:Journal of physics. Conference series Jg. 1917; H. 1; S. 12017 - 12025
Hauptverfasser: Vigneswari, P., Sivakumari, S.
Format: Journal Article
Sprache:Englisch
Veröffentlicht: Bristol IOP Publishing 01.06.2021
Schlagworte:
Algorithms
Approximation
Binary system
Codes
Decoding
Error correcting codes
Error correction
Error correction & detection
Low density parity check codes
Matching
Mathematical analysis
Message passing
Parity
Performance enhancement
Physics
ISSN:1742-6588, 1742-6596
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Zusammenfassung:In order to cater to the needs of the 5G standard, one of the prominent solutions in terms of high coding gain, high throughput and low power dissipation is the 5G NR LDPC (New Radio Low Density Parity Check) codes which have been adopted by 5G Standard. LDPC codes are the successful Third Generation Forward Error Correcting codes. An Efficient decoder is the key to the success of any Error Correcting Code. LDPC codes are one whose parity check matrix have a very few non zero entries. 5G NR LDPC codes are constructed by Protographs or base graphs and are block structured. This paper improves the performance of Layered Iterative minsum Approximation Message Passing decoding Algorithm using Rate Matching, Fixed Point Quantization and Offset minsum techniques. Rate Matching is to maintain the exact number of encoded blocks with in the TTI. Simulation of this algorithm with BPSK encoding over AWGN channel shows that BER of 10 -3 gives E b /N o of~2 dB for the block length of 10 5 .
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ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/1917/1/012017