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Enhancing the Performance of Coherent Sources SAC OCDMA Networks via Spatial Multiplexing

  • Alhassan, Ahmed M. (Depatrment of Electrical and Electronics Engineering, Universiti Teknologi PETRONAS (UTP)) ;
  • Badruddin, Nasreen (Depatrment of Electrical and Electronics Engineering, Universiti Teknologi PETRONAS (UTP)) ;
  • Saad, Naufal M. (Depatrment of Electrical and Electronics Engineering, Universiti Teknologi PETRONAS (UTP)) ;
  • Aljunid, Syed A. (School of Computer and Communication Engineering, Universiti Malaysia Perlis (UniMAP))
  • Received : 2013.08.19
  • Accepted : 2013.10.22
  • Published : 2013.12.25

Abstract

The beating of two or more lasers that have the same or a finite difference in the central frequencies, is the main source of noise in spectral amplitude coding optical code division multiple access (SAC OCDMA) systems. In this paper we adopt a spatial multiplexing (SM) scheme for SAC OCDMA systems to mitigate this beat noise. The results show that for different code weights and different data rates SM SAC can support a larger number of users than the conventional SAC for all different laser source configurations. However, SM SAC requires a more complex system than the conventional SAC, and almost twice as much optical component.

Keywords

References

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