Computer networks can be classified into two broad categories: wired networks and
wireless networks, according to the hardware and software technologies used to
interconnect the individual devices. Wired interconnection networks are hardware
fabrics supporting communications between individual processors in highperformance
computing systems (e.g., multi-computer systems and cluster systems).
On the other hand, due to the rapid development of wireless technologies, wireless
networks have emerged and become an indispensable part for people¿s lives. The
integration of different wireless technologies is an effective approach to
accommodate the increasing demand of the users to communicate with each other
and access the Internet.
This thesis aims to investigate the performance of wired interconnection
networks and integrated wireless networks under the realistic working conditions.
Traffic patterns have a significant impact on network performance. A number of
recent measurement studies have convincingly demonstrated that the traffic
generated by many real-world applications in communication networks exhibits
bursty arrival nature and the message destinations are non-uniformly distributed.
Analytical models for the performance evaluation of wired interconnection networks
and integrated wireless networks have been widely reported. However, most of these
models are developed under the simplified assumption of non-bursty Poisson process
with uniformly distributed message destinations.
To fill this gap, this thesis first presents an analytical model to investigate the
performance of wired interconnection networks in multi-computer systems. Secondly,
the analytical models for wired interconnection networks in multi-cluster systems are
developed. Finally, this thesis proposes analytical models to evaluate the end-to-end
delay and throughput of integrated wireless local area networks and wireless mesh
networks. These models are derived when the networks are subject to bursty traffic
with non-uniformly distributed message destinations which can capture the
burstiness of real-world network traffic in the both temporal domain and spatial
domain. Extensive simulation experiments are conducted to validate the accuracy of
the analytical models. The models are then used as practical and cost-effective tools
to investigate the performance of heterogeneous wired or wireless networks under
the traffic patterns exhibited by real-world applications.
|Publisher||University of Bradford, School of Computing, Informatics and Media|
|Source Sets||Bradford Scholars|
|Type||Thesis, doctoral, PhD|
|Rights||<a rel="license" href="http://creativecommons.org/licenses/by-nc-nd/3.0/"><img alt="Creative Commons License" style="border-width:0" src="http://i.creativecommons.org/l/by-nc-nd/3.0/88x31.png" /></a><br />The University of Bradford theses are licenced under a <a rel="license" href="http://creativecommons.org/licenses/by-nc-nd/3.0/">Creative Commons Licence</a>.|
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