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Optical Wireless Systems with DPSK and Manchester Coding

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Smart and Innovative Trends in Next Generation Computing Technologies (NGCT 2017)

Part of the book series: Communications in Computer and Information Science ((CCIS,volume 828))

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Abstract

Free-space optical (FSO) communication is an alternative method of allocating high bandwidth links in short to medium range over RF communication systems. It is observed as a growing increase in research and development activities over the past few years due to the innumerous advantages. The advantages of FSO communication include a much larger data rate, lower power consumption, more compact equipment, greater security against eavesdropping, better protection against electromagnetic interference and license free data transmission. However, the performance of the FSO system is greatly influenced by atmospheric temperature, pressure, humidity etc. To overcome these challenges various techniques have been proposed in the literature. Generally, the average bit error rate (BER) and quality factor (Q-factor) are prime parameters to measure the performance of the FSO systems. In this paper, a comparative study and mathematical modeling have been done using differential phase shift keying (DPSK) modulation technique with Manchester coding to conventional DPSK modulation technique for different FSO configurations. Manchester encoding synchronizes the signal itself; hence, it minimizes the error rate and optimizes the reliability of the system. For analyzing, the low to high turbulence level of atmosphere Gamma-Gamma type channel model is preferred.

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Authors and Affiliations

  1. Department of Electronics and Telecommunication Engineering, IIIT Bhubaneswar, Bhubaneswar, India

    Jagana Bihari Padhy & Bijayananda Patnaik

Authors
  1. Jagana Bihari Padhy
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  2. Bijayananda Patnaik
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Corresponding author

Correspondence to Jagana Bihari Padhy .

Editor information

Editors and Affiliations

  1. Indian Institute of Technology Patna, Patna, Bihar, India

    Pushpak Bhattacharyya

  2. University of Petroleum and Energy Studies, Dehradun, India

    Hanumat G. Sastry

  3. University of Petroleum and Energy Studies, Dehradun, India

    Venkatadri Marriboyina

  4. University of Petroleum and Energy Studies, Dehradun, India

    Rashmi Sharma

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Padhy, J.B., Patnaik, B. (2018). Optical Wireless Systems with DPSK and Manchester Coding. In: Bhattacharyya, P., Sastry, H., Marriboyina, V., Sharma, R. (eds) Smart and Innovative Trends in Next Generation Computing Technologies. NGCT 2017. Communications in Computer and Information Science, vol 828. Springer, Singapore. https://doi.org/10.1007/978-981-10-8660-1_12

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  • DOI: https://doi.org/10.1007/978-981-10-8660-1_12

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  • Publisher Name: Springer, Singapore

  • Print ISBN: 978-981-10-8659-5

  • Online ISBN: 978-981-10-8660-1

  • eBook Packages: Computer ScienceComputer Science (R0)

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