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A Load-Balanced Agile All-Photonic Network
Paredes, S.A.; Hall, T.J.;
Computers and Communications, 2007. ISCC 2007. 12th IEEE Symposium on
1-4 July 2007
Page(s):107
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113
Abstract:
We investigate a load-balancing method in a time division multiplexed agile all-photonic network (AAPN), which has a star topology and a buffeHess optical core. This method for bandwidth sharing is derived from a packet switch architecture that consists of three electronic buffering stages holding layered cross-point queues and two optical transpose interconnects between the stages. For AAPN, the architecture is folded: the slots (the data units) are fust sent to the same set of edge nodes acting as intermediate stage, and then sent to their final-destination edge nodes. The approach is suitable for the metro / access scenarios in which propagation delays are small and it simplifies the scheduling problem significantly since it is fixed and performed locally, without the need for signaling or centralised schedulers.
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