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This paper considers the characteristics of consecutive block loss for streaming services in which a block for a streaming service consists of original data packets and redundant ones generated by forward error correction (FEC). We consider a single-server queueing system with two input processes: a general renewal input process and a Poisson one. The former represents a streaming-packet flow, while...
Motivated by performance evaluation of a computer communication system, we consider a renewal input, general service time, single-server, and infinite-capacity queuing system with generally distributed time-out threshold. We obtain two moment approximate formulas for the mean system performance measures (including the mean number of customers in the system and the mean response time) by using the...
We consider a single-server GI/G/1 queueing system with modified service mechanism. By modified service mechanism, we mean that the service time distribution (H0) for the customers arriving to find the system idle may be different from the service time distribution (H1) for the customers arriving to find the system busy. We present qualitative relationships among the performance measures in the system...
In this paper, the performance of peer-to-peer (P2P) file sharing service based-on flooding search algorithm is analyzed. We focus on six types of four-terminal four-router physical network, and investigate the impact of topology inconsistency and flooding search on the file retrieval performance. The analysis model is based on a two-layer queueing network in which both logical and physical topologies...
Although diffusion approximations are widely used for analyzing non-Markovian queueing systems, so far there are few results on the relationship between the approximation accuracy and a combination choice of two boundary conditions and two discretization for finite-capacity multi-server queuing systems. The finite-capacity system requires two boundary conditions at origin (x=0) and capacity limit...
This paper considers the performance of burst segmentation with upper-layer retransmission for optical burst switched (OBS) networks. Focusing on an output wavelength of an OBS node, we model the system as a single-server queueing system without waiting room. An existing burst in transmission is segmented upon other burst arrival, and the segmented part of the burst is retransmitted after a later...
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