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A Novel Packet Switch Node Architecture for Contention Resolution in Synchronous Optical Packet Switched Networks

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Author(s): Virendra Singh SHEKHAWAT | Dinesh Kumar TYAGI | V. K. CHAUBEY

Journal: International Journal of Communications, Network and System Sciences
ISSN 1913-3715

Volume: 02;
Issue: 06;
Start page: 562;
Date: 2009;
Original page

Keywords: Fiber Delay Lines | Packet Circulation | Optical Packet Switch Networks | Packet Delay Probability | Contention Resolution

ABSTRACT
Packet contention is a key issue in optical packet switch (OPS) networks and finds a viable solution by including optical buffering techniques incorporating fiber delay lines (FDLs) in the switch architecture. The present paper proposes a novel switch architecture for packet contention resolution in synchronous OPS network employing the packet circulation in FDLs in a synchronized manner. A mathematical model for the proposed switch architecture is developed employing packet queuing control to estimate the blocking probability for the incoming traffic. The switch performance is analyzed with a suitable contention resolution al-gorithm through the computer simulation. The simulation results substantiate the proposed model for the switch architecture.
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