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In this paper, we bring out the first research element in building an automated surveillance system for rice fieldmonitoring against pest and grain-eating birds. We study how accurate can be the use of normalized power sequencesin detecting bird sounds, which is a kind of harmonic sound type. We proposed a simply detection scheme (whichcan be executed by sensors), for the purpose of detecting the...
The lifetime maximization problem in target coverage application can be addressed by the following question: how to partition sensors into an optimal number of sets and schedule their operating intervals so that the coverage requirement can be satisfied and the network lifetime can be maximized? In this paper, we address this problem by using cover set approach. A greedy algorithm that produces disjoints...
As an important issue reflecting the QoS of the sensing task, coverage problem impacts widely on the performance of wireless sensor networks. The target coverage lifetime maximization problem is yet a challenging problem, which tries to settle a compromise between managing the coverage of a set of targets and maximizing the lifetime of the network. This problem becomes more accurate when targets detection...
Recent improvements in affordable and efficient integrated electronic devices have enabled a wide range of applications in the estate of wireless sensor networks. An important issue addressed in wireless sensor networks is the coverage problem. This latter is centered on a fundamental question: how well do the sensors observe the physical space? A major challenge in coverage problem is how to maximize...
Wireless Sensor Networks are attracting during last decades more interest in both civil and military fields. This interest combined with recent advanced in microelectronics drive the Wireless Sensor Networks in the front of the stage. They are emerging as a key solution to monitor remote and/or hostile environments. However, they still faced various challenges among which, power management is one...
Wireless Sensor Networks have emerging recently as a key solution to monitor remote or hostile environments. Such networks are faced for a numerous challenges such as energy efficiency usage, network lifetime maximization, etc. Sensing and communications consume energy, therefore judicious power management can effectively extend network lifetime. In this paper we focus on the problem of energy efficiency...
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