BP-based Approximation Methods For Rateless Codes

ALBAYRAK C., TÜRK K.

24th Signal Processing and Communication Application Conference (SIU), Zonguldak, Türkiye, 16 - 19 Mayıs 2016, ss.1897-1900 identifier identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Cilt numarası:
  • Doi Numarası: 10.1109/siu.2016.7496135
  • Basıldığı Şehir: Zonguldak
  • Basıldığı Ülke: Türkiye
  • Sayfa Sayıları: ss.1897-1900
  • Karadeniz Teknik Üniversitesi Adresli: Evet

Özet

In this letter, belief propagation (BP) based approximation methods for low density parity check (LDPC) codes are adapted to the Luby transform (LT) soft decoder structure in order to reduce its computational complexity. The bit error rate (BER) performances of the algorithms over the binary input additive white Gaussian noise (BIAWGN) channel are obtained by both theoretically and simulations. For theoretical analysis, the Monte-Carlo density evolution (MC-DE) method is used. In addition, computational complexity analyzes of methods are presented. Results show that the computational complexity can be significantly decreased with a limited performance loss cost.