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WiGig enables wireless multi-gigabit communication over 60GHz band. However, its usage scenarios may be constrained by two major limitations: line-of-sight propagation and very short transmission range. We seek to boost the WiGig's usability by using WiFi to complement its limitations in tri-band (2.4/5/60GHz) wireless systems. Our goal is to let a tri-band client have multimedia services at the WiGig's...
In this paper, a LQR controller is proposed for attitude control of a quadrotor. This controller can realize the fast and stable attitude control and the output of the system fast track the reference input. First, the mechanism of quadrotor is analyzed and the mechanism model is carried out according to the assumptions. Then, the LQR controller is designed and a simulation is performed to demonstrate...
The wireless communication means is necessary for routine work and emergency operating in nuclear power station. With the developments of wireless technical and nuclear power plant, wireless communication system requires more comprehensive and widespread application. The secure and stable bidirectional wireless communication system is to have an important status in plant communication systems. In...
Wireless communication system is necessary in the daily work and emergency conditions of the Taishan Nuclear Power Plant. Wireless network covers the whole plant, and ensures the reliability and diversity of communication instrument together with other communication systems (DTV) in nuclear power plant. The technical proposal of wireless communication system should ensure the applicability inside...
Analysis model for routing protocols for wireless ad hoc networks is significant helpful, since it can be employed to investigate to highlight the most considerable ingredient, enlighten the heuristic approach, provide landmark for performance evaluations, and so forth. A fundamental issue in multicast over an ad hoc network is that what is the optimal multicast throughput in such an environment and...
Due to the high mobility of nodes and highly dynamic topology, performing efficient and robust multicast in a Mobile Ad Hoc Network (MANET) is a challenging task. Most of existing multicast protocols in MANETs discover the routing path by flooding message over the whole network, which result in considerable cost for routing discovery and maintenance. Moreover, the reliability of the discovered path...
Multicast routing paths in ODMRP form a multiple tree in fact and different process of multiple tree construction will result in significant different performance in terms of packet delivery ratio, forwarding efficiency, end-to-end delay, and so forth. In this paper, we outline the model and investigate the process of multiple construction in ODMRP and propose two multiple tree construction process,...
Due to high mobility, highly dynamic topology and unreliable communication medium of Mobile Ad Hoc Networks (MANETs), nodes mobility must be taken into account in design of a service discovery protocol for such environment. A novel approach, Mobility-aware Attenuated Bloom Filters (maBF), to perform effective and efficient service discovery in MANETs is proposed in this paper. In order to guarantee...
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