Kala, S M
(2015)
Characterization,Estimation, and Mitigation of Interference in Multi- Radio Multi- Channel Wireless Mesh Networks.
Masters thesis, Indian Institute of Technology Hyderabad.
Abstract
Wireless Mesh Networks (WMNs) have evolved into a wireless communication technology of im-mense interest. But technological advancements in WMNs have inadvertently spawned a plethora of network performance bottlenecks, caused primarily by the rise in prevalent interference. The benefits that multi-radio multichannel(MRMC) WMNs offer viz., augmented network capacity,
uninterrupted connectivity and reduced latency, are depreciated by the detrimental effect of prevalent interference. Interference mitigation is thus a prime objective in WMN deployments. Conflict Graphs are indispensable tools used to theoretically represent and estimate the interference in wire- less networks. This interference is multidimensional, radio co-location interference
(RCI) being a crucial aspect that is seldom addressed in conflict graph generation approaches suggested in re- search studies. Further, designing high performance channel assignment (CA) schemes to harness the potential of MRMC deployments in WMNs is an active research domain. A pragmatic channel
assignment approach strives to maximize network capacity by restraining the endemic interference and mitigating its adverse impact on network performance metrics. However, numerous CA schemes have been proposed in research literature and there is a lack of CA performance prediction techniques which could assist in choosing a suitable CA for a given WMN.
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