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This paper describes the issue of full connection probability and network efficiency using a minimum number of nodes in wireless sensor networks is addressed. It investigates the network characteristics through a number of simulations in Matlab. Using various input parameters, it tries to approximate four realistic scenarios: a football pitch, a forest, a building and a tunnel. It also examines the impact of different parameters on the full connection probability (sensors scattering model, path loss model, Tx / Rx powers and observer placement). Determining the order of all parameters with respect to the full connection probability is quite difficult, as some of them are dependent on each other.
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