A multiwavelength control architecture for electronic processing bottleneck reduction in WDMA lightwave networks

  • Authors:
  • I.E Pountourakis

  • Affiliations:
  • Department of Electrical and Computer Engineering, Division of Computer Science, National Technical University of Athens, 157 73 Zographou, Athens, Greece

  • Venue:
  • Computer Communications
  • Year:
  • 1999

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Abstract

In this paper we propose a new network architecture which uses several wavelengths as control channels for coordination of packet transmissions on data channels for single-hop WDMA networks and passive star topology. The distribution of control information over a number of control channels in conjunction with a suitable network interface reduces the electronic processing bottleneck at one of the end stations. Time is divided into fixed size cycles. The proposed schemes adopt the slotted ALOHA protocol for the access to control and data multichannel systems and differ in the adopted policy for data packet transmission. Analytic model is developed and analyzed for performance measures evaluation based on Poisson approximation statistics of both the infinite and finite population. Numerical results are discussed for various numbers of control and data channels. The effect of receiver collisions is analyzed and estimated by the average rejection probabilities at destination. Also simulation results are presented for comparison with the results obtained by performance analysis.