Optical burst switching (OBS) - a new paradigm for an optical Internet
Journal of High Speed Networks - Special issue on optical networking
Discrete-Time Models for Communication Systems Including ATM
Discrete-Time Models for Communication Systems Including ATM
Proceedings of the 2004 conference on Applications, technologies, architectures, and protocols for computer communications
A performance model for an asynchronous optical buffer
Performance Evaluation - Performance 2005
Analyzing a degenerate buffer with general inter-arrival and service times in discrete time
Queueing Systems: Theory and Applications
M/G/1 queue with deterministic reneging times
Performance Evaluation
A Hessenberg Markov Chain for Fast Fibre Delay Line Length Optimization
ASMTA '08 Proceedings of the 15th international conference on Analytical and Stochastic Modeling Techniques and Applications
A unified model for synchronous and asynchronous FDL buffers allowing closed-form solution
Performance Evaluation
Tracing an optical buffer's performance: an effective approach
NET-COOP'07 Proceedings of the 1st EuroFGI international conference on Network control and optimization
On the probability of abandonment in queues with limited sojourn and waiting times
Operations Research Letters
Performance analysis and dimensioning of multi-granular optical networks
Optical Switching and Networking
The Design of an Allo-Optical Packet Switching Network
IEEE Communications Magazine
Optical burst switching: a new area in optical networking research
IEEE Network: The Magazine of Global Internetworking
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For current backbone networks, the capacity limit is not fiber throughput ( 10 Tbit/s per fiber), but rather, switching speed. Optical switching (Optical Packet Switching, Optical Burst Switching, and others) provides a viable alternative, relying on Fiber Delay Lines (FDLs) for buffering. The main feature of such a buffer is the quantization of possible delays: only delays equal to the length of one of the FDLs can be realized. The impact of quantization on buffer performance is huge. A recent numerical procedure for single-wavelength buffers allows exact numerical evaluation of this impact, but does not allow for practical insight. Moreover, it lacks the potential of generalization, needed to evaluate the performance of buffers with multiple wavelengths at the output. Countering this, we applied a heuristic combination of two existing queueing models: one with quantization, and one with impatience. As we show in this paper, this combination yields accurate performance results. Key vantage of this heuristic is that it translates the FDL buffer problem into two well-known queueing problems, with accurate performance expressions available in literature, even for multiple wavelengths. This paper presents the heuristic in detail, together with several figures, comparing the heuristic's output to exact results.