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ATIM (Ad hoc traffic Indication Message) window can be used effectively to enhance the potential energy savings at static sensors nodes during data dissemination in wireless sensor networks. Doze and awake are two states a sensor node may be in during ATIM window. We consider a traditional wireless sensor network system consisting of resource-rich static sink and resource-constrained multiple static...
The accurate modeling of the MOSFET channel capacitance has evolved from Meyer's reciprocal gate capacitive models to Ward's charge-based, channel partition models. Numerous models have also been proposed to represent trans-capacitive and charging current components. Recently, a solution to separate the transport and charging current components for SOI MOSFET's was proposed. The model also verified...
We propose a four-layer architecture model (FLAM) to obtain the potential energy savings for sensor nodes in large scale wireless sensor networks. The very first layer, the bottom layer is a network of a resource-constrained sensor nodes deployed in the field. The second layer is ad hoc network formed by resource-rich dynamic sink nodes, also knows as cluster sink nodes. The third layer consists of...
We propose a three-layer architecture model (TLAM) for wireless sensor networks. The first layer (bottom layer) consists of a network of resource-constrained sensor nodes deployed in the field. The second layer contains a set of resource-rich dynamic sink nodes forming an ad hoc network. The sinks at layer second are responsible to monitor and collect data from a region, called cluster. So the sinks...
Lighting accounts for approximately 30% of the total energy consumption in the US. An increasing focus on energy efficiency and sustainability is driving the adoption of efficient lighting technologies. Solid state lighting, in particular light emitting diodes (LED) offer significant potential for replacing a large part of the general lighting applications, currently occupied by incandescent and halogen...
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