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64-QAM full-duplex DWDM radio over fiber with 10 Gbit/s and 25 Gbit/s data and video transmission in the 5 Ghz and 60 Ghz dual frequency bands

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Abstract

A full duplex 64-QAM converged dual-band radio over fiber system at 5 GHz and 60 GHz frequencies for data and video-centric services is proposed and simulated. Dense wavelength division multiplexing network consists of 8 channels, each carrying 25 Gbit/s and 10 Gbit/s streams generated using pseudorandom bit sequence generators that are 64-QAM vector modulated. An unmodulated optical carrier is coupled with each of the eight channels which are then multiplexed into a lightwave that is spread over the wavelength range of 1545 nm to 1552.5 nm. At the remote base station, the data from eight channels is demultiplexed and sent to respective antenna units where data is split in to 4 tones. At each antenna unit, the first and third tones combine to generate 60 GHz downlink stream and the second tone produces the 5 GHz downlink data after detection by the photodiodes. The last tone is used to modulate the uplink data. Simulation results show that error vector magnitude below the forward error correction limit of 8 % is achieved for each channel of downlink and uplink after 50 km of transmission over optical fiber.

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Authors and Affiliations

  1. EED, University of Engineering and Technology (UET), Taxila, Pakistan

    Nauman Ashraf, Ahmad Khalil Khan & Gulistan Raja

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  1. Nauman Ashraf
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  2. Ahmad Khalil Khan
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  3. Gulistan Raja
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Correspondence to Nauman Ashraf.

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Ashraf, N., Khan, A.K. & Raja, G. 64-QAM full-duplex DWDM radio over fiber with 10 Gbit/s and 25 Gbit/s data and video transmission in the 5 Ghz and 60 Ghz dual frequency bands. J Opt 45, 21–25 (2016). https://doi.org/10.1007/s12596-016-0313-x

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  • DOI: https://doi.org/10.1007/s12596-016-0313-x

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