FFT-SPA based non-binary LDPC decoder for IEEE 802.11n standard

Author

Aruna, S. ; Anbuselvi, M.

fYear

2013

fDate

3-5 April 2013

Firstpage

566

Lastpage

569

Abstract

Non-binary LDPC (NB-LDPC) codes has inherent parallelism and excellent error correcting performance. By comparing with other traditional algorithm, FFT-SPA based non-binary LDPC code gives reduced computation complexity with better decoding performance. In this paper, FFT-SPA based NB-LDPC decoding performance is analyzed for the specification of IEEE 802.11n standard. Parity check matrix (PCM) defines the strength of the LDPC codes. By retaining the properties of the PCM structures, in this paper we propose two modified parity check matrices to reduce the computation strength. For various order of Galois Field with different PCM structures, non-binary LDPC codes performances are analyzed.

Keywords

decoding; error correction codes; fast Fourier transforms; parity check codes; wireless LAN; FFT-SPA based nonbinary LDPC decoder; Galois Field; IEEE 802.11n standard; PCM structure; error correcting performance; fast Fourier transform; nonbinary LDPC codes; parity check matrix; sum product algorithm; Bit error rate; Complexity theory; Decoding; Galois fields; Iterative decoding; Phase change materials; ECC NB-LDPC decoder; IEEE 802.11; parity check matrix;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications and Signal Processing (ICCSP), 2013 International Conference on

Conference_Location

Melmaruvathur

Print_ISBN

978-1-4673-4865-2

Type

conf

DOI

10.1109/iccsp.2013.6577118

Filename

6577118