Advances in sensor and communication technologies have made it possible to manufacture small sensors with sensing, processing, and wireless communication capabilities in a costeffective fashion. A sensor network can be formed by deploying specialized sensors in the region of interest to perform certain sensing and networking tasks. Application scenarios of wireless sensor networks include battl...

† Presently working at the Laboratories for Information Technology, 21 Heng Mui Keng Terrace, Singapore 119613 AbstractWireless sensor networks are widely used in data acquisition frameworks. Unlike conventional networked devices, wireless sensors run on low power energy sources, and have limited memory buffers, minimal computational complexity, and low processing speeds. As such, the complexit...

In Wearable Well-Being project PUHVI, HipGuard system for patients recovering from hip surgery was developed. Novel wireless sensors having 3-axis acceleration and 3-axis magnetic sensors are used to measure patient’s hip and leg position and rotation. Furthermore, capacitive insole sensors are used to measure the force between foot and a shoe. This paper concentrates on how these sensors can b...

by Kyle Bruce Wheeler Network intrusion detection systems (NIDS) are deployed near network gateways to analyze all traffic entering or leaving the network. The traffic at such locations is frequently transmitted in such volumes and speeds that a commodity computer quickly becomes overwhelmed. NIDS must be able to handle all of the traffic available. The SPANIDS platform addresses this problem w...

Effective utilization of limited power resources by the sensors is pre-eminent to the Wireless Sensor Networks. Organizing the network into balanced clusters based on assigning equal number of sensors to each cluster may have the consequence of unbalanced load on the cluster heads. By-product of this is unbalanced consumption of the energy by the nodes which leads to minimization of network lif...

Abstract— Sensing, processing and communication can consume energy in wireless sensor network. The lifetime of wireless sensor network can be extended by efficient power management. One efficient method to extend the network lifetime is to divide the set of all deployed sensors into non disjoint subsets or sensor covers so that each sensor cover can monitor the entire targets. Adjusting the sen...

Using multiple sinks in a wireless sensor network can significantly decrease the amount of energy spent on communication, so it has been paid much attention in recent years. In this paper, we introduce a new divisible load scheduling strategy to solve the problem how to complete the tasks within the possibly shortest time in multi-sinks wireless sensor network. In this strategy, the tasks are d...

threat assessment in the computer networks of organizations can reduce damage caused by attacks and unexpected events. data fusion models such as the jdl model provide efficient and adequate sensors to gather the right information at the right time from the right components. this information then is refined and normalized to provide situational awareness and assess events that may be intended a...

A simple simulation using SIMULINK is presented to model the thermal/control behaviour of a domestic gas boiler. The simulation was the first step in a research programme to investigate the efficacy of control using an oxygen sensor. A brief review of boiler control is used to outline current practice and research developments. Ratio control in several forms has been investigated. Performance i...

A trend in today’s technology is the deployment of wireless sensor network in mobile robotics for emergency surveillance and rescue systems. The field of robotics can be enhanced when deployed with sensors. In this a critical issue is how to increase the lifetime of the network. A sleeping mechanism for putting the idle sensors to sleep is necessary. First we design a 3-tier hybrid network arch...