Time domain diversity combining with delay-and-advanced operation in two layered asymmetrically clipped optical OFDM system

• Published in: Optical and quantum electronics Vol. 54; no. 7
• Main Authors: Baig, M. S. Salman, Abas, A. F., Alresheedi, M. T., Mahdi, M. A.
• Format: Journal Article
• Language: English
• Published: New York Springer US 01-07-2022; Springer Nature B.V
• Subjects: Characterization and Evaluation of Materials; Computer Communication Networks; Electrical Engineering; Lasers; Optical communication; Optical Devices; Optics; Photonics; Physics; Physics and Astronomy; Signal to noise ratio; Time domain analysis; LACO-OFDM; ACO-TDDC; ACO-OFDM; LACO-TDDC
• ISSN: 0306-8919; 1572-817X
• DOI: 10.1007/s11082-022-03822-5

This paper demonstrates the advantage of application of time domain diversity combining (TDDC) at the transmitter over the time domain diversity combining receiver (TDDR) for a single layer of ACO-OFDM in terms of reduced complexity. The paper further demonstrates the implementation of time domain delay-and-advanced operation with TDDC at the transmitter for a two-layered LACO-OFDM system, where all the subcarriers are utilized and an improved BER performance is achieved. The new improved 2-LACO-OFDM system achieves 2.7 dB, 3.3 dB and 3.7dB better optical signal to noise ratio (OSNR) than the ACO-TDDC, 2-LACO-TDDC, 3-LACO-TDDC respectively.