Chellury Sastry

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This paper presents a resource-aware and link quality based (RLQ) routing metric to address energy limitations, link quality variations, and node heterogeneities in wireless sensor and actor networks (WSANs). The RLQ metric is a combined link cost metric, which is based on both energy efficiency and link quality statistics. The primary objective of the(More)
Most wireless sensor network (WSN) architectures involve clusters of sensor nodes reporting their sensed data to base stations or sink nodes, and end applications access sensor data from the sink nodes through service-oriented paradigms. One of the key challenges involved in the design of WSN applications through such architectures is the need to conserve(More)
A fundamental question for observation systems based on wireless sensor network (WSN) is to achieve the best tradeoff between estimation precision and many design factors. One challenge of this kind is to select a small number of sensors, if possible, to observe the environment, and thus conserve precious onboard battery energy by transmitting only valuable(More)
It is important to balance the tradeoff between the energy efficiency and estimation precision for wireless sensor networks (WSNs). Energy costs can be reduced significantly by selecting proper sensors. In this paper, we propose an interactive optimal sensor selection (IOSS) algorithm, to choose proper sensors to observe parameters of physical systems, such(More)
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