Influence of Scintillation and Background Noise on LDGM-BPPM with Unequal Transmission Power Allocation Scheme in Optical Wireless Channel

• Sumikawa Kyohei

  Ibaraki University

• Habuchi Hiromasa

  Ibaraki University

抄録

In this paper, the influence of scintillation and background noise on the optical low-density generator matrix code with binary pulse position modulation (LDGM-BPPM) with the unequal transmission power allocation (UTPA) scheme is investigated. In particular, the bit error rate (BER) performance of LDGM-BPPM with the UTPA scheme is evaluated in the presence of avalanche photodiode (APD) noise. Consequently, the following points are clarified. (1) The BER performance increases steadily in proportion to the background noise. (2) The BER of the UTPA scheme deteriorates gradually with increasing variance of scintillation. (3) The optimum value of the power ratio (optimum R) varies with the amount of background noise and scintillation. (4) The quasioptimum R is 3.1. Thus, the UTPA scheme is effective for optical LDGM-BPPM.

収録刊行物

• 信号処理

  信号処理 18 (4), 181-184, 2014

  信号処理学会

詳細情報

• CRID: 1390001204465220480
• NII論文ID: 130004678178
• DOI: 10.2299/jsp.18.181
• ISSN: 18801013
• ISSN: 13426230
• 本文言語コード: en
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• 抄録ライセンスフラグ: 使用不可