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Most High Frequency (HF) communications systems deployed on the field today implement ALE (Automatic Link Establishment) techniques in order to help the end-user automatically set up a link with good properties. Two generations (so called 2G and 3G ALE) have been standardized since the 90s, and are today being revisited due to the emergence of wideband HF waveforms. In this paper, we model ALE protocols...
We consider problems of localization, disambiguation, and mapping in a domain filled with signals-of-opportunity generated by transmitters. One or more (static or mobile) receivers utilize these signals and from them characterize the domain, localize, disambiguate, etc. The tools we develop are topological in nature, and rely on interpreting the problem as one of embedding the domain into a sufficiently...
A wireless sensor network (WSN) is a wireless network consistsing of spatially distributed autonomous device using sensors to cooperatively monitor physical or environmental conditions, such as temperature, sound, vibration, pressure, motion or pollutants at different locations. A complete model of a sensor network is needed to improve upon its efficiency and design.Using a modeling and simulation...
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