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 |
| 巻 | 60 |
| 号 | 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 26 → 2004 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