Performance evaluation of an optical transparent access tier based on PON and spectral codes

Authors:
B. Huiszoon;J. A. Hernández;H. De Waardt;G. D. Khoe;J. Aracil;A. M. J. Koonen
Affiliations:
COBRA Institute of the Eindhoven University of Technology, Eindhoven, Netherlands;Networking Research Group of the Departamento de Ingeniería Informática, Universidad Autónoma de Madrid, Madrid, Spain;COBRA Institute of the Eindhoven University of Technology, Eindhoven, Netherlands;COBRA Institute of the Eindhoven University of Technology, Eindhoven, Netherlands;Networking Research Group of the Departamento de Ingeniería Informática, Universidad Autónoma de Madrid, Madrid, Spain;COBRA Institute of the Eindhoven University of Technology, Eindhoven, Netherlands
Venue:
IEEE Journal on Selected Areas in Communications - Special issue on broadband access networks: Architectures and protocols
Year:
2009

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Abstract

The increasing amount of bandwidth requirements and quality of service needs for the next-generation access networks has boosted extensive research in the fiber-optics communication field. In this light, passive optical networks (PONs) combined with optical code division multiple access (OCDMA), provide a potentially cost-effective solution to meet such bandwidth demands. This work proposes an optical transparent architecture which enables all-optical communication between the network nodes. The encoded data streams are multiplexed at a merging point which results in multiple user interference (MUI), thus significantly reducing the network throughput. The networking nodes are able to monitor and record user activity in the PON, and further register the (past) state of activity at the merging point. In this work, we study the coherence of state between the networking nodes and the merging point, for different packet size distributions, in order to predict an optimal transmission instant of each node's data packets. We note that the states are coherent depending on the packet size distribution.