Performance analysis of BP-based algorithms for irregular low-density parity-check codes on fast rayleigh fading channel

Akinori Ohhashi, Tomoaki Ohtsuki

研究成果: Conference article査読

12 被引用数 (Scopus)

抄録

In this paper, we analyze the performance of irregular low-density parity-check (LDPC) codes with three belief propagation (BP) based decoding algorithms, namely the uniformly most powerful (UMP) BP-based algorithm, the normalized BP-based algorithm, and the offset BP-based algorithm on a fast Rayleigh fading channel by using density evolution (DE). We also optimize the code construction of the irregular LDPC codes with three BP-based algorithms, and determine optimum parameters for the normalized BP-based algorithm and the offset BP-based algorithm on the fast Rayleigh fading channel. From the numerical results, we show that the performance of the irregular LDPC codes with offset BP-based algorithm can be very close to that with BP algorithm on the fast Rayleigh fading channel. We also show that the irregular LDPC codes with offset BP-based algorithm can achieve very good trade-off between the performance and decoding complexity.

本文言語English
ページ(範囲)2530-2534
ページ数5
ジャーナルIEEE Vehicular Technology Conference
60
4
出版ステータスPublished - 2004 12月 1
外部発表はい
イベント2004 IEEE 60th Vehicular Technology Conference, VTC2004-Fall: Wireless Technologies for Global Security - Los Angeles, CA, United States
継続期間: 2004 9月 262004 9月 29

ASJC Scopus subject areas

  • コンピュータ サイエンスの応用
  • 電子工学および電気工学
  • 応用数学

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