Full Duplex Radio over Fiber System with Carrier Recovery and Reuse in Base Station and in Mobile Unit
Joseph Zacharias1, Vijayakumar Narayanan2
1Joseph Zacharias, Department of Electronics, Rajiv Gandhi Institute of Technology (RIT), Kottayam (Kerala), India.
2Vijayakumar Narayanan, Department of Electronics, Government Engineering College, Barton Hill, Trivandrum (Kerala), India.
Manuscript received on 10 August 2017 | Revised Manuscript received on 18 August 2017 | Manuscript Published on 30 August 2017 | PP: 1-5 | Volume-6 Issue-6, August 2017 | Retrieval Number: F5110086617/17©BEIESP
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: A novel full duplex Radio over Fiber (RoF) system extending from the central office (CO) to the mobile unit using a single continuous wave laser in the central station is proposed. Mobile unit is designed without a high frequency local oscillator. An optical frequency comb is generated in which one frequency is used as carrier for modulating data. The frequency for uplink is obtained from other comb signal. A large number of comb lines can be utilized along with the data comb line. Thus the frequency of operation of the base station can be selected by switching to different comb lines. The modulation scheme QAM accounts for greater spectral efficiency for the system. The proposed system is viable for high bandwidth communication and cost effective.
Keywords: Full Duplex, Optical comb, RoF
Scope of the Article: Optical Communication