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Title: Hartley-domain DD-FTN algorithm for ACO-SCFDM in optical-wireless communications
Authors: Shan, C
Zhou, J
Guo, D
Wang, HD
Liu, L
Wang, Q
Liu, WP
Yu, CY 
Issue Date: 2019
Source: IEEE photonics journal, Aug. 2019, v. 11, no. 4, 7904509, p. 1-10
Abstract: In this paper, we propose a Hartley-domain direct-detection faster-than-Nyquist (HD-DD-FTN) algorithm for asymmetrically clipped optical single-carrier frequency-division multiplexing (ACO-SCFDM) in optical-wireless communications (OWC). The HD-DD-FTN algorithm includes modified Hartley-domain equalization (HDE) and maximum likelihood sequence detection, which can simultaneously compensate serious high-frequency distortion and eliminate enhanced in-band noise for the bandwidth-limited OWC. Modified HDE can be implemented by real-valued operations, which is appropriate for dealing with real-valued signals. The simulation results show that ACO-SCFDM system using the HDDD-FTN algorithm is more robust to inter-symbol interference than that using conventional HDE algorithm. Therefore, the bit error rate performance of the ACO-SCFDM system using HD-DD-FTN algorithm is better than that using the conventional HDE algorithm. In conclusion, the ACO-SCFDM system using the HD-DD-FTN algorithm shows great potential for bandwidth-limited OWC.
Keywords: ACO-SCFDM system
HD-DD-FTN algorithm
Optical-wireless communications
Free-space communications
Publisher: Institute of Electrical and Electronics Engineers
Journal: IEEE photonics journal 
EISSN: 1943-0655
DOI: 10.1109/JPHOT.2019.2925007
Rights: This work is licensed under a Creative Commons Attribution 3.0 License. For more information, see
The following publication C. Shan et al., "Hartley-Domain DD-FTN Algorithm for ACO-SCFDM in Optical-Wireless Communications," in IEEE Photonics Journal, vol. 11, no. 4, pp. 1-9, Aug. 2019, Art no. 7904509 is available at
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