Optimization of tunable wavelength converters and internal wavelengths in the optical packet switch with shared FDL buffer

被引：2

作者：

Lim, Huhnkuk ^{[1
]}

Oh, Changhwan

Park, Chang-Soo

机构：

[1] Korea Inst Sci & Technol, KISTI, Supercomp Ctr, Taejon, South Korea

[2] SCU, Dept Comp Engn, Seoul, South Korea

[3] GIST, Dept Informat & Commun, Kwangju, South Korea

来源：

IEICE TRANSACTIONS ON COMMUNICATIONS | 2006年 / E89B卷 / 07期

关键词：

tunable wavelength converters (TWCs); internal wavelengths; contention resolution; optical packet switch (OPS); fiber delay line (FDL) buffer;

D O I：

10.1093/ietcom/e89-b.7.2074

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In an effort to reduce switch cost, we present the optimum numbers of tunable wavelength converters (TWCs) and internal wavelengths required for contention resolution of asynchronous and variable length packets, in the optical packet switch (OPS) with the shared fiber delay line (FDL) buffer. To optimize TWCs and internal wavelengths related to OPS design cost, we proposed a scheduling algorithm for the limited TWCs and internal wavelengths. For three TWC alternatives (not shared, partially shared, and fully shared cases), the optimum numbers of TWCs and internal wavelengths to guarantee minimum packet loss, are evaluated to prevent resource waste. Under a given load, TWCs and internal wavelengths could be significantly reduced, guaranteeing the same packet loss as the performance of an OPS with full TWCs and internal wavelengths.

引用

页码：2074 / 2078

页数：5

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