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The low-power, low-rate ZigBee/IEEE 802.15.4 wireless sensor network (WSN) is vulnerable to the interference from a collocated wireless local area network (WLAN), which operates with considerably higher power in the same 2.4GHz Industrial, Scientific, and Medical (ISM) band. In this paper, a novel and effective Interference Aware Adaptive Clear Channel Assessment (IAACCA) technique is proposed to...
The increased amount of redundant units means improvement of task reliability, however, the additional units and corresponding vote devices request more logistics, which results in decline of basic reliability. In this paper, we design and make analysis and comparison of multiple redundant structures in two ways of task reliability and basic reliability. This paper provides theoretical reference for...
This paper introduces the application of back-to-back converter in the power grid synchronization parallel. After converter devices finish the function of power grid parallel and quit running, it may realize many functions besides the power grid parallel by adopting different control strategies to the controllers, such as raising voltage from zero experiments on transmission line in substations, raising...
Considering the commutation failure characteristics and control performance of DC system, electromagnetic transient simulation for large-scale MIDC system is unavoidable. This paper gives an electromagnetic transient simulation application using PSCAD/EMTDC for large-scale MIDC system. To study the difference between electromagnetic and electromagnetic transient simulation methods for MIDC systems,...
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