Roteamento em redes em malha sem fio com balanceamento de carga e caminhos mais curtos
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Data
2014-12-19
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Universidade Federal de Goiás
Resumo
Wireless Mesh Networks (WMNs) are infrastructures with autonomic properties, such as
self-organization and self-recovery, which can be developed with widely available technologies
and low cost solutions. Besides their current applications, such as community
networks and broad-band Internet access, WMNs can offer contributions in the context of
the Internet of Things and help to build robust infrastructures to smart energy networks,
among other uses. However, WMNs usually have performance issues due to overload in
certain parts of the network and interference in wireless links. In this context, it is important
that solutions are used to promote load-balancing and to mitigate interference
between wireless links. Research in this area shows that one of the most promising approaches
are in the subject of the joint routing and channel assignment. However, most of the
previous works depends on the knowledge of the network traffic and handle flows with
low granularity. In this thesis, we handle the performance problem in WMNs, in particular
those having multiple radios and multiple available channels, using a joint approach, but
without the mentioned restrictions. Our proposal is a joint heuristic, whose main contribution
is the routing, which pursues the compromise between load-balancing and the path
length of the network flows. We have developed our proposal in the Network Simulator
3 (ns-3) and have compared it with other works in literature. We found that our heuristic
provides throughput improvements in most of the analyzed scenarios, besides promote
greater justice between the flows that compete for resources.
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MELLO, M. O. M. C. Roteamento em redes em malha sem fio com balanceamento de carga e caminhos mais curtos. 2014. 61 f. Dissertação (Mestrado em Ciência da Computação)–Universidade Federal de Goiás, Goiânia, 2014.