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Most sensor networks employ dynamic routing protocols so that the routing topology can be dynamically optimized with environmental changes. The routing behaviors can be quite complex with increasing network scale and environmental dynamics. Knowledge on the routing path of each packet is certainly a great help in understanding the complex routing behaviors, allowing effective performance diagnosis...
A wireless sensor network (WSN) is a collection of spatially distributed autonomous sensor nodes that can be used to monitor, among other things, environmental conditions. WSN sensor nodes are constrained by their limited energy supply, communication range and local computational capabilities. Data routing is an area that can be optimized to allow nodes to conserve energy, improving the network's...
Wireless Sensor Networks can play an important role in real-time monitoring of buried pipelines and reporting damages more efficient than traditional approaches (i.e. Wired Sensor Networks, and mechanical robots). Wireless pipeline monitoring sensor networks offer accurate, continuous, and real time data monitoring along the pipeline. This can be of a great help in planning preventive maintenance...
The goal of this paper is to introduce two trust methods for routing in wireless sensor networks. The two methods consider transitivity of trust. When computing routing trust value, we use optimistic and pessimistic ways respectively. These trust methods can select a trust routing for precise data transmission. Simulations for optimistic method show the trust model has a higher performance than ECCR...
In collective intelligent robots, communication capability is considered as a key feature to decide how to design the collaboration policy. A cooperative routing robot system is suggested to maintain the communication capability in between human and a robot and an algorithm to establish a seamless global communication is proposed. Generating the radio signal map is suggested to estimate an area where...
Wireless Sensor networks (WSN) is an promising technology and have enormous prospective to be working in critical situations like battlefields and commercial applications such as traffic surveillance, building, habitat monitoring and smart homes and many more scenarios. One of the major challenges in wireless sensor networks face today is security. In this paper we proposed a profile based protection...
In recent years wireless sensor networks are widely used in many automated system like vehicle monitoring, heavy duty plants, robotic control etc. one of the best automated systems is the smart irrigation system. In this paper we have proposed a simple and cost effective smart irrigation system. Our system deploys wireless sensor motes from a wireless sensor network. The system is modelled in outdoor...
In a wireless sensor network (WSN), sensor nodes are powered by batteries that can operate for only a short period of time, which results in short network lifetime. The short lifetime disables the application of WSNs for long term tasks such as structural health monitoring for bridges and tunnels, border surveillance, road condition monitoring, etc. In this paper the overall network lifetime is increased...
Many environmental, commercial, military, and structural monitoring applications of wireless sensor networks (WSNs) involve lining up the sensors in a linear form, and making a special class of these networks; we defined these in a previous paper as Linear Sensor Networks (LSNs), and provided a classification of the different types of LSNs. A multihop approach to routing the data from the individual...
A Compressive Sensing (CS) based solution is proposed for centralized and distributed discovery of physical phenomena in large scale Wireless Sensor Networks (WSNs). WSNs monitoring environmental phenomena over large geographic areas collect measurements from a large number of distributed sensors. Compressive Sensing provides an effective means of discovery and reconstruction of functions with only...
Heterogeneous mobile wireless sensor networks can have mobile nodes with different speed and mobility patterns combined with fixed sensor nodes. These networks can be deployed for the surveillance of large and critical areas, such as hydropower or water treatment stations. The mobile nodes can vary from internal tactic robots to higher speed terrestrial vehicles, through to aquatic and aerial vehicles...
The post disaster mitigation is the immediate task to be carried out in disaster affected areas in order to reduce the extent of damage and for early rehabilitation and reconstruction. This paper proposes a design framework for an optimal control strategy to efficiently perform surveillance over a wide disaster hit area using a network of flying robots to determine the extent of damage promptly so...
A novel approach to the design of smart spatially aware sensing and actuation networks is presented, which promises benefits in a wide range of applications with significantly reduced infrastructure cost, and increases in distributed functionality and capability, both at first fit and for in-service upgrade and modification. The approach is set in the context of a range of exemplars: wide area monitoring...
Real world sensor network deployments and prototype implementations are still a challenging research and development area for scientists and engineers. We present a prototype implementation of a ubiquitous monitoring system (UBIMOS) applying wireless sensor networks. The monitoring system is designed for use by various operation teams, especially by critical rescue and communication teams. With its...
An new environment monitoring system of household security robot is proposed based on wireless sensor networks, which is composed of the robot node and the sensor nodes for monitoring temperature and humidity, gas leaking, fire and housebreaking in family. A robot centering on network topology structure is presented and realized. all of the sensor nodes information in the network will be sent to the...
The environment monitoring system of household security robot is designed and implemented based on wireless mesh networks, which are used for monitoring temperature and humidity, gas leaking, fire and housebreaking in family. New tree routing and agent mechanism are proposed to find wireless sensor nodes and forward data. A set of design requirements are developed that cover the hardware design of...
A principal factor in sensor network design is energy efficiency. In this work, we propose to extend the lifetime of sensor networks using appropriate choice of sensor node distribution. The key idea of our scheme is to deploy more nodes in areas of extensive energy usage. Using this scheme of sensor node distribution, we use probabilistic angular routing to route data packets from the sensor nodes...
Expected growth in use and implementation of wireless sensor networks (WSNs) in different environments and for different applications creates new security challenges. In WSNs, a malicious node may initiate incorrect path information, change the contents of data packets, and even hijack one or more genuine network nodes. As the network reliability completely depends on individual nodespsila presence...
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