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Energy efficiency, power system reliability and the environmental impact of fossil fuel plants are all drivers for more intelligent or smart grids. We discuss a Perfect Power System, a smart micro grid with system redundancy, and implement a test bed to demonstrate smart grid concepts such as demand response, onsite generation, automated lighting system control, and ambient temperature control. We...
Smart grid is an intelligent power generation, distribution and control system. ZigBee, as wireless mesh networking scheme low in cost, power, data rate, and complexity, is ideal for smart grid applications. Unfortunately, almost all ZigBee channels are overlapped with wireless local area networks (WLAN) based on 802.11 specifications, resulting in significant service degradations in interference...
The past five years have witnessed a massive increase in the use of mobile cellular broadband devices such as smartphones. These devices often contain multiple radios permitting WiFi, WCDMA and HSPA access in a single device. Their increased processing power and multimedia capabilities have made them attractive for use for new services such as mobile voice over IP (VoIP). We provide an empirical analysis...
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