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Asynchronous sleep schedule and geographical routing are two efficient and scalable solutions for wireless sensor networks (WSNs). However, the schedule may degrade the delay performance of the routing protocol, and the optimal combined utilization of these two solutions is still an open question. In this letter, we propose a geographical-based opportunistic routing protocol for asynchronous WSNs...
In this work, we propose an object behavior evaluation system based on wireless sensor network. By the behavior information of objects contacted with human, it can evaluate the behavior characteristics of human under the interactions between human and environment, which goes beyond the traditional evaluation methods that directly monitor human themselves. The system can track and monitor the motion...
Node mobility, as one of the most important features of Wireless Sensor Networks (WSNs), may affect the reliability of communication links in the networks, leading to abnormalities and decreasing the quality of service provided by WSNs. The mCWQ calculus (i.e., CWQ calculus with mobility) is recently proposed to capture the feature of node mobility and increase the communication quality of WSNs. In...
Unreliability of communication links is a very common problem in wireless sensor networks (WSNs), and it may result in abnormalities and decrease the quality of service provided by a wireless system. The unreliability may be caused by many reasons, among which, node mobility as one of the essential and interesting features of WSNs, may significantly affect the reliability of communication links. To...
In viewing the common unreliability problem in wireless communications, the CWQ calculus (a Calculus for Wireless sensor networks from Quality perspective) was recently proposed for modeling and reasoning about WSNs(Wireless Sensor Networks) and their applications from a quality perspective. The CWQ calculus ensures that sensor nodes, even though in an unreliable communication network, can behave...
Due to deployment constraints and communication modalities, unreliable communications are very common in Wireless Sensor Networks (WSNs). In order to ensure that every node can behave in a reasonable manner even though they are in an unreliable communication, we propose CWQ, a process calculus for formal modeling and reasoning about WSNs and their applications from a quality perspective. We combine...
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