Impact of Burst Assembly on the Performance of FDL Buffers in Optical Burst-Switched Networks
نویسندگان
چکیده
Optical burst switching (OBS) is a new approach proposed with the objective of utilizing the huge transmission capacity available with WDM links both efficiently and cost effectively. Burst assembly is one of the main building blocks of this approach, which is performed at the edge of an OBS domain in order to generate bursts whose lengths are much larger than the switching time of all-optical switches in the core. It is also known that burst assembly can greatly affect statistics of traffic in such a network. In this paper, we investigate effect of burst assembly on performance of fiber delay line (FDL) buffers, which may be deployed in core switching nodes as a means of contention resolution. Among other important properties, our simulation-based analysis reveals that the burst assembly process can result in a substantial reduce in the loss rate. It is shown that this improvement in the loss rate can be as much as several orders of magnitude.
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