Hybrid buffering architecture for packet contention resolution of an optical packet switch |
| |
Authors: | Ahmed Galib Reza Hyotaek Lim |
| |
Affiliation: | Division of Computer and Information Engineering, Dongseo University, Pusan 617-716, Republic of Korea |
| |
Abstract: | Packet contention is a major issue in optical packet switching network and it is not a trivial task to resolve due to lack of optical RAM technology. In order to resolve contention optical buffering approach is used using fiber delay lines (FDLs). Yet there is a heavy packet loss rate due to unavailability of output port and free FDLs. This paper proposes a hybrid buffering architecture using feed-forward and feedback shared FLDs to resolve packet contention resolution of an optical packet switch. Feed-forward FDLs are used as primary buffer and feedback FDLs are implemented as supplementary buffer. Simulation result shows that proposed hybrid buffering switch achieves packet loss rate between 10−1 and 10−2 at heavy traffic load (ρ = 0.9) for a 32 × 32 switch using different FDL length. |
| |
Keywords: | Contention resolution Fiber delay line (FDL) Packet loss rate Optical packet switching (OPS) |
本文献已被 ScienceDirect 等数据库收录! |