Abstract
It is well known that performance, such as burst loss probability and transmission
delay, for optical burst switching (OBS) networks greatly depends on the switching
time of the OBS switch. We analyze the switching-time effect on the burst
loss probability using a continuous-time Markov chain. In our analysis, the
transmission time of a burst is characterized with both the burst size and
the switching time, and the burst loss probability, burst throughput, and
data throughput are explicitly derived using the Geo,M/M/c/c queueing model.
Numerical examples show that our analysis is quite useful for investigating
the effect of the switching time on the timer-based burst assembly. We also
consider voice-over-Internet Protocol (VoIP) service as a delay-sensitive
application, and we investigate the switching time on the VoIP service. From
our performance analysis, we derive an appropriate switching time and a burst
processing time of the VoIP service in terms of the transmission distance.
© 2006 Optical Society of America
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