Hartley-Domain DD-FTN Algorithm for ACO-SCFDM in Optical-Wireless Communications
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 equal...
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          | Published in | IEEE photonics journal Vol. 11; no. 4; pp. 1 - 9 | 
|---|---|
| Main Authors | , , , , , , , | 
| Format | Journal Article | 
| Language | English | 
| Published | 
        Piscataway
          IEEE
    
        01.08.2019
     The Institute of Electrical and Electronics Engineers, Inc. (IEEE)  | 
| Subjects | |
| Online Access | Get full text | 
| ISSN | 1943-0655 1943-0647 1943-0647  | 
| DOI | 10.1109/JPHOT.2019.2925007 | 
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| 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 HD-DD-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. | 
    
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| AbstractList | 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 HD-DD-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. | 
    
| Author | Ji Zhou Weiping Liu Changyuan Yu Dong Guo Haide Wang Long Liu Qi Wang Chun Shan  | 
    
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| SubjectTerms | ACO-SCFDM system Algorithms Bandwidth Bandwidths Bit error rate Carrier frequencies Computer simulation Distortion Equalization free-space communications Frequency division multiplexing HD-DD-FTN algorithm OFDM Optical distortion Optical noise Optical sensors Optical transmitters optical-wireless communications Wireless communications  | 
    
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| Title | Hartley-Domain DD-FTN Algorithm for ACO-SCFDM in Optical-Wireless Communications | 
    
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