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To detect a node flip ambiguity in range-based wireless network node localization, Wang et al. have proved that the flip ambiguity detection is equal to whether there is a straight line intersecting with all range error circles of reference node, which is called the existence of intersecting line (EIL) problem. To solve the EIL problem under equal radii, a convex hull algorithm proposed by Wang et...
Flooding and broadcasting are basic and fundamental operations in Wireless Sensor Networks (WSNs). In fact, they are used for data dissemination, time synchronization, key distribution, node localization, and routing. On the other hand, sensors are prone to failure such as exhaustion of energy, environmental hazards, and software or hardware malfunctioning. In this paper, we make an enhancement of...
Radio frequency (RF) energy harvesting is an emerging technology that will enable to drive the next generation of wireless sensor networks (WSNs) without the need of using batteries. In this paper, we present RF energy harvesting circuits specifically developed for GSM bands (900/1800) and a wearable dual-band antenna suitable for possible implementation within clothes for body worn applications....
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