Hongxing Bai

Learn More
Recent researches on energy efficient coverage configuration in wireless sensor networks mainly address the goal of 100% or near 100% coverage preserving. However, we find that a small percentage of loss of coverage, which is acceptable in many applications, can result in dramatic increase in energy savings. Therefore, in this paper percentage coverage(More)
One of the most serious concerns for wireless sensor networks (WSN) is energy. To obtain long lifetime, one potential method is deploying redundant sensors in the WSN and let each sensor switch its state between ACTIVE and OFF. At the same time, the WSN should meet various requirements of quality of service (QoS). This paper focuses on two important(More)
Coverage configuration is an important issue in large scale wireless sensor networks (WSNs). Existing coverage configuration methods are generally based on the concept of physical coverage. That is, a point is covered if it is located within the sensing area of at least one sensor. Different from physical coverage, information coverage is based on the(More)
This paper explores the design and configuration of a sensor network for target detection. Subject to a budget limit for sensors, the network is required to secure a certain detection probability and to work for a reasonable long time. One novel model of randomly distributed network is presented to fulfill this requirement. A state switching scheme is(More)
In sensor networks, sensing coverage is an important issue. For target tracking and event monitoring applications, complete coverage is commonly used as one measure of coverage. However, when sensors are randomly distributed in the area of interest, complete coverage is too sensitive to ∧ the locations of the sensors. In this paper, point coverage is(More)
  • 1