Performance evaluation of hybrid modulation techniques for high speed radio over fiber communication system

R. Shantha Selva Kumari and K. Seyatha ()
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R. Shantha Selva Kumari: Mepco Schlenk Engineering College, Sivakasi, India
K. Seyatha: Mepco Schlenk Engineering College, Sivakasi, India

International Journal of Modern Physics C (IJMPC), 2019, vol. 30, issue 09, 1-12

Abstract: In Radio over Fiber (RoF) technology, the optical network capacity is integrated with the wireless network. The main objective of this work is to enhance the performance behavior of optical fiber communication system in terms of BER, Received Power and Q-Factor. The proposed combined modulation technologies, such as Pulse Amplitude Frequency Modulation (PAFM), Differential Phase Shift Keying Amplitude Modulation (DPSKA), Offset Quadrature Phase Shift Keying Amplitude Modulation (OQPSKA), Quadrature Amplitude Frequency Modulation (QAFM), Frequency Phase Modulation (FPM) and Pulse Amplitude Phase Modulation (PAPM), are used to meet this objective. The input data are used for modulating the electrical carrier signal with a frequency of 250 and 255GHz. This hybrid modulation technique obtained the minimum BER of about 10−170 in FPM technique. The maximum Q-Factor of 33 is obtained in QAFM technique. The obtained maximum received power is 0.79mW in OQPSKA technique.

Keywords: Modulation; RoF; Q-Factor; bit error rate; received power (search for similar items in EconPapers)
Date: 2019
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DOI: 10.1142/S0129183119500700

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