Peak-To-Average Power Ratio (PAPR) Reduction Using Discrete Invasive Weed Optimization (DIWO) in Coherent Detection Optical OFDM (CO-OFDM) Communication Systems


TAŞPINAR N., Alhalabi M.

Wireless Personal Communications, vol.139, no.1, pp.715-732, 2024 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 139 Issue: 1
  • Publication Date: 2024
  • Doi Number: 10.1007/s11277-024-11645-8
  • Journal Name: Wireless Personal Communications
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, PASCAL, Applied Science & Technology Source, Communication Abstracts, Compendex, INSPEC
  • Page Numbers: pp.715-732
  • Keywords: CO-OFDM, PTS, PAPR, DEHO, DIWO, DCSA
  • Erciyes University Affiliated: Yes

Abstract

In this paper, a coherent detection optical OFDM (CO-OFDM) communication system is designed to provide 40 Gbps downstream signaling using Optisystem and MATLAB software. First, the classical Partial Transmission Sequence (PTS) technique is applied to the CO-OFDM system to reduce the Peak-to-Average Power Ratio (PAPR). Then, to further reduce the PAPR of the CO-OFDM signal, the PTS system is integrated with Discrete Invasive Weed Optimization (DIWO) to obtain optimized phase weighting factors, resulting in DIWO-PTS. The performance of DIWO-PTS is compared with that of Discrete Elephant Herding Optimization-PTS (DEHO-PTS) and Discrete Crow Search Algorithm-PTS (DCSA-PTS). Simulation results show that DIWO-PTS is the best technique in terms of BER performance and achieves minimum PAPR compared to DEHO-PTS and DCSA-PTS using the same number of searches. According to the simulation results, after applying DIWO-PTS to the CO-OFDM system, the PAPR at CCDF = 10–3 is reduced from 10.42 dB to 5.85 dB, a reduction of 4.57 dB, whereas DCSA-PTS has a PAPR of 5.94 dB, a reduction of 4.48 dB, and DEHO-PTS has a PAPR of 6.03 dB, a reduction of 4.39 dB.