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In optical burst-switched networks, the so-called burst-control packet is sent a given offset-time ahead of the optical data burst to advertise the imminent burst arrival, and reserve a time-slot at each intermediate node to allocate the incoming optical burst. This paper proposes a methodology to estimate the number of packets to arrive in a given amount of time, in order to make it possible to send the BCP packet straight after the first packet arrival and reduce the latency experienced during the burst-assembly process. The following studies the impact of a wrong guess in terms of over-reservation of resources and waiting-time at the assembler, providing a detailed characterisation of their probability density functions.
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