Effect of All-Integer Quantization Decoding in LDPC Coded High Order Modulation Schemes

doi: 10.14456/mijet.2022.39

Authors

  • Patinya Muangkammuen Khon Kaen University, Thailand
  • Wongpram Vongjampa Khon Kaen University, Thailand
  • Puripong Suthisopapan Khon Kaen University, Thailand

Keywords:

low-density parity-check (LDPC) codes, quadrature amplitude modulation (QAM), integer quantization, finite precision.

Abstract

There is strong evidence that LDPC codes under practical all-integer quantization decoding constraint can achieve very good BER performance over binary modulation scheme, e.g., BPSK. By focusing on higher order modulation scheme, the effect of all-integer quantization decoding is further investigated in this work. Our result reveals that LDPC coded M-QAM with only 3-bit integer quantization decoding can exhibit excellent performance, i.e., negligible performance loss comparing with non-quantized case.

Author Biographies

Patinya Muangkammuen, Khon Kaen University, Thailand

Department of Electrical Engineering, Faculty of Engineering, Khon Kaen University, Khon Kaen, Thailand

Wongpram Vongjampa, Khon Kaen University, Thailand

Department of Electrical Engineering, Faculty of Engineering, Khon Kaen University, Khon Kaen, Thailand

Puripong Suthisopapan, Khon Kaen University, Thailand

Department of Electrical Engineering, Faculty of Engineering, Khon Kaen University, Khon Kaen, Thailand

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Published

2022-09-21

How to Cite

Muangkammuen, P., Vongjampa, W., & Suthisopapan, P. (2022). Effect of All-Integer Quantization Decoding in LDPC Coded High Order Modulation Schemes: doi: 10.14456/mijet.2022.39. Engineering Access, 8(2), 321–324. Retrieved from https://ph02.tci-thaijo.org/index.php/mijet/article/view/246919

Issue

Vol. 8 No. 2 (2022): July - December

Section

Research Papers

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