Mitigation of distortion in FH-OCDMA networks with various modulation techniques

  • Authors:

  • Surinder Singh;Chakshu Goel

  • Affiliations:

  • Department of Electronics and Communication Engineering, Sant Longowal Institute of Engineering and Technology, Longowal, Sangrur, Punjab, India;Department of Electronics and Communication Engineering, Sant Longowal Institute of Engineering and Technology, Longowal, Sangrur, Punjab and Shead Bhagat Singh College of Engg. & Technology, ...

  • Venue:
  • EHAC'12/ISPRA/NANOTECHNOLOGY'12 Proceedings of the 11th WSEAS international conference on Electronics, Hardware, Wireless and Optical Communications, and proceedings of the 11th WSEAS international conference on Signal Processing, Robotics and Automation, and proceedings of the 4th WSEAS international conference on Nanotechnology
  • Year:
  • 2012

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Abstract

In this paper, four channels of frequency hoped optical code division multiple access system are simulated for OOK, BPSK with residual carrier, BPSK with sub carrier and QPSK at 30 Mb/s with channel spacing of 0.05 GHz. It is evaluated that FH-OCDMA using BPSK with sub carrier is greatly mitigate the distortion as compared to OOK, BPSK with residual carrier, QPSK system.The quality of signal is further enhanced by variation of FWHM with fixed gain EDFA, saturable gain EDFA and optimized SOA.