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M. PALANIVELAN1,* , SHEILA ANAND2
Orthogonal Frequency Division Multiplexing (OFDM) is a promising modulation technique commonly being used in wired and wireless communications. Recently this technique being implemented in optical fiber communication systems due to its high spectral efficiency, ability to combat both polarization and chromatic dispersions and flexibility in digital signal processing’s. However, a major drawback of OFDM is its high Peak to Average Power Ratio (PAPR) which increases with the number of subcarriers. High PAPR requires high dynamic range of Analog to Digital and Digital to Analog converters and power amplifiers. Consequently, PAPR reduction schemes become an essential part of Optical OFDM (OOFDM) systems. In this paper, Optimal Subcarrier Pairing (OSP) technique is proposed to achieve peak power reduction. Further to improve Optical Signal to Noise Ratio (OSNR) for the proposed system to give a certain required value of Bit Error Rate (BER), Subcarrier Exclusion (SE) technique is also proposed..
Optimal Subcarrier Pairing (OSP), Peak to Average Power Ratio (PAPR), Subcarrier Exclusion (SE), Optical SNR(OSNR).
M. PALANIVELAN, SHEILA ANAND, Subcarrier exclusion and optimal subcarrier pairing based peak to average power ratio reduction in DD-OOFDM systems, Optoelectronics and Advanced Materials - Rapid Communications, 10, 11-12, November–December 2016, pp.873-878 (2016).
Submitted at: Nov. 24, 2015
Accepted at: Nov. 25, 2016
Optoelectronics and Advanced Materials - Rapid Communications
(2022): 0.5 - 2022 Journal Citation Reports (Clarivate Analytics, 2023)
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