PROJECT TITLE :

Analysis and Experimental Verification of Frequency-Based Interference Avoidance Mechanisms in IEEE 802.15.4

ABSTRACT:

A lot of and additional wireless networks are deployed with overlapping coverage. Particularly in the unlicensed bands, we tend to see an increasing density of heterogeneous solutions, with very diverse technologies and application requirements. As a consequence, interference from heterogeneous sources-additionally called cross-technology interference-is a major drawback inflicting a rise of packet error rate (PER) and reduce of quality of service (QoS), probably leading to application failure. This issue is clear, for example, when an IEEE 802.fifteen.four wireless sensor network coexists with an IEEE 802.eleven wireless LAN, that is the main target of this work. One method to alleviate cross-technology interference is to avoid it in the frequency domain by choosing different channels. Completely different multichannel protocols appropriate for frequency-domain interference avoidance have already been proposed within the literature. But, most of these protocols have only been investigated from the perspective of intratechnology interference. At intervals this work, we have a tendency to produce an objective comparison of various candidate channel selection mechanisms primarily based on a new multichannel protocol taxonomy using measurements in a very real-life testbed. We tend to assess completely different metrics for the foremost appropriate mechanism using the same set of measurements as within the comparison study. Finally, we have a tendency to verify the operation of the simplest channel selection metric in a very proof-of-concept implementation running on the testbed.