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WiFi networks are vulnerable to rogue AP attacks in which an attacker sets up an imposter AP to lure mobile users to connect. The attacker can eavesdrop on the communication, severely threatening users' privacy. Existing rogue AP detection solutions are confined to some specific attack scenarios (e.g., by relaying the traffic to a target AP) or require additional hardware. In this paper, we propose...
Mobile crowdsensing (MCS) is a new paradigm which takes advantage of pervasive mobile devices to collaboratively collect data and analyze physical phenomenon. As mobile devices are owned and controlled by individuals with various capabilities and intentions, a main challenge MCS applications face is to ensure the credibility of the crowd contributed data. Existed works attempt to increase confidence...
In the practical wireless cognitive radio networks (CRNs), the secondary users (SUs) usually show different favors to spectrum attributes, which brings new challenges to spectrum allocation. How to reduce the communication cost and allocate the spectrum according to favors is a meaningful topic. Prior skycube solution, which consists of all possible non-empty skylines, is not suitable for power-limited...
In the relay-trading mode of wireless cognitive radio networks the secondary user (SU) can achieve a promised spectrum access opportunity by relaying for the primary user (PU). How to utilize the exchanged resource efficiently and fairly is an interesting and practical problem. In this paper we proposed a cooperative spectrum sharing strategy (RT-CSS) for the relay-trading mode from the fairness view...
Cyber-physical system (CPS) integrates physics with Internet to provide a timely, confidential and efficient interaction of physical appliances with people. However, as a CPS Application, Smart Home still has difficulties in building a centralized interaction for remote monitoring. The paper presents the interaction model of Smart Community Cyber-Physical System (SCCPS) with the name Net-in-Net. The...
Wireless sensor networks (WSNs) have become indispensable to the realization of smart homes. The objective of this paper is to develop such a WSN that can be used to construct smart home systems. The focus is on the design and implementation of the wireless sensor node and the coordinator based on ZigBee technology. A monitoring system is built by taking advantage of the GPRS network. To support multi-hop...
In view of the difficulty for nodes to renew the power and the structure of the wireless sensor networks, this paper presents a model of the data preprocessing of wireless sensor networks based on multi-agents by means of utilizing independent and intelligent of Multi-Agents. Then this paper introduces the structure of model and every Agent's function and trait. Moreover, the model also presents the...
Distributed wireless sensor networks will play an important role in the future. In wireless sensor networks, observers are interested in spatio-temporal information monitored by sensors. It is crucial to design and employ energy-efficient query processing since nodes are battery-powered, and thus their lifetimes are limited. This paper proposed a query source sharing approach to optimizing query processing...
Wireless interference is a key issue affecting network performance. In this paper, we address the broadcast scheduling problem in wireless multi-hop networks with interference. We propose a policy called EMDF (evolved minimum degree first) which assigns different transmission slots for nodes within a three-hop neighborhood to effectively decrease the conflicts caused by both hidden terminal problem...
In order to suppress effectively the effects of RSSI error to wireless sensor networks node localization's precision in pervasive computing environment, individual diversity difference coefficient, distance difference coefficient and distance difference localization equation is defined based on the analysis of the models of maximum likelihood estimation and RSSI. The closest beaconing node to object...
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