Partial sensing coverage and deployment efficiency in wireless directional sensor networks

Unlike most existing works that focus on a conventional omni-directional sensor network, we investigate the sensing coverage problem in a directional sensor network through mathematically modeling, analysis, and computer-based simulation evaluation. Research results show: 1) A factor of (2π/θ) more sensors will be required to provide the same sensing coverage in a θ(θ < 2π)-directional sensor network with respect to its counterpart...