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Firms wake up to sensor networks
News Wireless sensor networks have only recently emerged from the labs of universities and various start-ups as a commercial technology, fueled by advances in miniaturised memory, processing and transceiver technology, wireless communication protocols...
[September 8, 2005, 15:30]
Constructing Wireless Sensor Networks Via Effective Topology Maintenance and Querying
White Papers The ability of properly covering the terrain under investigation and collecting measurements from redundantly sensed portions of the terrain are two important objectives for monitoring applications using wireless sensor networks.
[August 13, 2007, 8:09]
E-CSMA: Supporting Enhanced CSMA Performance in Experimental Sensor Networks Using Per-Neighbor Transmission Probability Thresholds
White Papers At the same time, CSMA variants and hybrid MAC protocols based at least in part on carrier sensing have become the de facto standard in wireless sensor networks, underscoring a need to improve its performance.
[August 13, 2007, 8:20]
Distributed Software-Based Attestation for Node Compromise Detection in Sensor Networks
White Papers Based on verifying the genuineness of the running program, the paper proposes two distributed software-based attestation schemes that are well tailored for sensor networks. Sensors that operate in an unattended, harsh or hostile environment are...
[August 13, 2007, 15:14]
An Investigation Into Intra-Vehicle Sensor Networks
White Papers Wireless sensor networks enable the development of distributed sensing applications atop tiny "Mote" computing platforms. The potential benefits from intra-vehicle wireless sensor networks include modular "Clampon" diagnostics systems and complete...
[August 13, 2007, 15:14]
Placement, Coordination and Tasking of Static and Mobile Sensor Networks
White Papers Sensor networks consist of nodes that can measure characteristics of their local environment, perform computations, and communicate with each other over a wireless network. In recent years, advancements in hardware and low-level software have led...
[August 13, 2007, 15:14]
Monte-Carlo Localization for Mobile Wireless Sensor Networks
White Papers Localization is crucial to many applications in wireless sensor networks. This paper proposes a range-free anchor-based localization algorithm for mobile wireless sensor networks that builds upon the Monte Carlo Localization algorithm.
[August 17, 2007, 10:25]
Convergence of Mobile Devices and Wireless Sensor Networks
White Papers Pervasive computing with mobile devices and wireless sensor networks has been identified as a future area of research. This paper motivates the convergence of those two technologies as introduces new services to the customer.
[August 17, 2007, 10:26]
Local Update-Based Routing Protocol in Wireless Sensor Networks With Mobile Sinks
White Papers Mobile sinks can be a viable solution to solve the problem that energy consumption is not balanced for all the sensor nodes in Wireless Sensor Networks (WSNs). Frequent location updates from the sink (a current possible solution) can lead to both...
[August 17, 2007, 10:36]
An Adaptive Mobility-Aware MAC Protocol for Sensor Networks (MS-MAC)
White Papers Most of the MAC protocols proposed for wireless sensor networks assume sensors to be stationary after deployment, which usually provide very bad network performance in scenarios involving mobile sensors.
[August 23, 2007, 1:00]
Hierarchical Power-Aware Routing in Sensor Networks
White Papers This paper discusses online power-aware routing in large sensor networks. The authors seek to optimize the lifetime of the network. The paper develops an approximation algorithm called max-min zPmin that has a good empirical competitive ratio.
[August 23, 2007, 1:00]
Variable Bit Rate Flow Routing in Wireless Sensor Networks
White Papers Since energy constraint is a fundamental issue for wireless sensor networks, network lifetime performance has become a key performance metric for such networks. This paper considers a two-tier wireless sensor network and focus on the flow routing...
[August 23, 2007, 1:00]
Rate Allocation and Network Lifetime Problems for Wireless Sensor Networks
White Papers An important performance consideration for wireless sensor networks is the amount of information collected by all the nodes in the network over the course of network lifetime. Since the objective of maximizing the sum of rates of all the nodes in...
[August 23, 2007, 1:00]
On Base Station Selection for Anycast Flow Routing in Energy-Constrained Wireless Sensor Networks
White Papers Energy constraints have had a significant impact on the design and operation of wireless sensor networks. This paper investigates base station selection (or anycast) problem in wireless sensor networks.
[August 23, 2007, 1:00]
Lifetime-Optimal Data Routing in Wireless Sensor Networks Without Flow Splitting
White Papers This paper considers two-tiered wireless sensor networks, and addresses the network lifetime problem for upper-tier Aggregation and Forwarding Nodes (AFNs). Existing flow routing solutions proposed for maximizing network lifetime require AFNs to...
[August 23, 2007, 1:00]
Collaborative Signal Reinforcement in Sensor Networks
White Papers Sensor networks can be used for various application areas such as health, military, and home. Research in collaborative methods and wireless communication has enabled the development of sensor networks.
[August 23, 2007, 1:00]
Localization for Mobile Sensor Networks
White Papers Hence, localization schemes for sensor networks typically use a small number of seed nodes that know their location and protocols whereby other nodes estimate their location from the messages they receive.
[August 23, 2007, 1:00]
Robust Node Localization for Wireless Sensor Networks
White Papers The node localization problem in Wireless Sensor Networks has received considerable attention, driven by the need to obtain a higher location accuracy without incurring a large, per node, cost (dollar cost, power consumption and form factor).
[August 23, 2007, 1:00]
SCUB: A Distributed, Utility-Based Architecture for Closed Loop Control With Wireless Sensor Networks
White Papers This paper develops architecture for task assignment in wireless sensor networks in support of closed-loop tactical operations. The approach is based on a mathematical framework, which, based on multi-attribute utility theory, allows either end...
[August 23, 2007, 1:00]
A Protocol Architecture for Wireless Sensor Networks
White Papers Wireless Sensor Networks (WSN) is a new class of networking technology that is increasingly becoming popular nowadays. Such large scale sensor networks far outweigh use of conventional networks in situations where terrain, climate and other...
[August 23, 2007, 1:00]
