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Optica Publishing Group
  • Journal of Lightwave Technology
  • Vol. 25,
  • Issue 8,
  • pp. 2044-2053
  • (2007)

Optimal Resource Allocation Scheme in a Multirate Overlapped Optical CDMA System

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Abstract

This paper addresses the problem of resource allocation in a multiservice optical network based on an overlapped code-division-multiple-access system. A joint transmission power and overlapping coefficient (transmission rate) allocation strategy is provided via the solution of a constrained convex quadratic optimization problem. The solution of this problem maximizes the aggregate throughput subject to peak laser transmission power constraints. The optimization problem is solved in a closed form, and the resource allocation strategy is simple to implement in an optical network. Simulation results are presented, showing a total agreement between the derived analytical solution and the one obtained using a numerical search method. In addition, analytical and numerical results show that the proposed resource allocation strategy can offer substantial improvement in the system throughput.

© 2007 IEEE

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