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While many theoretical and simulation works have already highlighted the potential gain of cognitive radio, several technical issues still have to be evaluated and overcome from an experimental viewpoint. Our team is currently developing a new experimental facility remotely accessible and dedicated to this problem. CorteXlab is developed in the framework of a nationwide French program Future Internet...
Survivability is a looming threat for Wireless Sensor Networks (WSNs) especially when they are used for monitoring and tracking applications with limited available resources. Self-powered WSNs can alleviate the problem and extend network lifetime. In this poster, we introduce an Energy Conserving Opportunistic Routing (ECOR) protocol that tries to keep a balance between the energy consumption and...
Mixed data transmission strategies have been proposed to address the energy imbalance problem in wireless sensor networks. However, whether the energy of all nodes can be balanced by this approach, especially under the communication range constraints of sensor nodes, is lack of study. In this paper, we present a novel analytical model for the two-hop based mixed data transmission and derive its energy...
Wireless power transfer technology is considered as one of the promising solutions to address the energy limitation problems for end-devices, but its incurred potential risk of electromagnetic radiation (EMR) exposure is largely overlooked by most existing works. In this paper, we consider the Safe Charging with Adjustable PowEr (SCAPE) problem, namely, how to adjust the power of chargers to maximize...
To fully evaluate and compare the performances of channel assignment algorithms, we design a MICAz-based testbed system with GUI interface, which is suitable for most kinds of algorithms. In the proposed system, we can download different algorithms, observe the performance through the GUI interface, and compare the results with simulations. In the demonstration, regret matching based channel assignment...
In the last few years, the research community has witnessed the rapid development of the Information-Centric Networking (ICN) approach aiming at evolving the Internet from today's host based packet delivery towards directly retrieving information in a secure, reliable, scalable, and efficient way. The Internet of Things (IoT) concept envisions scenarios in which “smart objects” can be interconnected...
Low-power wireless, such as IEEE 802.15.4, is envisioned as one key technology for wireless control and communication. In the context of the Advanced Metering Infrastructure (AMI), it serves as an energy-efficient communication technology for both communications at building-scale networks and city-scale networks. Understanding real-world challenges and key properties of 802.15.4 based networks is...
Dynamic spectrum access in the form of cognitive radio (CR) has gained traction in wireless sensor networks (WSN) because of a) scarcity caused by the proliferation of wireless devices and service and b) it provides spectrum efficient communication for the resource constrained WSNs. However, proper means have to be devised to satisfy the requirements of both WSNs and CRs and to enjoy the benefits...
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