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Wireless Sensor Applications for Building Operation and Management
Published in Barney L. Capehart, Lynne C. Capehart, Paul J. Allen, David C. Green, Web Based Energy Information and Control Systems:, 2021
Michael R. Brambley, Michael Kintner-Meyer, Srinivas Katipamula, Patrick J. O’Neill
To minimize interference and provide adequately for the many uses of radio frequency communication, frequency bands are allocated internationally and by most countries. The International Telecommunication Union (ITU) is the organization within which governments coordinate global telecommunication networks and services. The United States is a member of the ITU through the Federal Communications Commission (FCC). The ITU maintains a Table of Frequency Allocation that specifies regionally and by country the allocations of radio spectrum. [14] The ISM (industrial, scientific, medical) bands provide frequencies for license-free radio communications given a set of power output constraints. The ISM frequencies and common applications are shown in Table 27-1.
Wireless Sensor Applications for Building Operation and Management
Published in Barney L. Capehart, Timothy Middelkoop, Paul J. Allen, David C. Green, Handbook of Web Based Energy Information and Control Systems, 2020
Michael R. Brambley, Michael Kintner-Meyer, Srinivas Katipamula, Patrick J. O’Neil
To minimize interference and provide adequately for the many uses of radio frequency communication, frequency bands are allocated internationally and by most countries. The International Telecommunication Union (ITU) is the organization within which governments coordinate global telecommunication networks and services. The United States is a member of the ITU through the Federal Communications Commission (FCC). The ITU maintains a Table of Frequency Allocation that specifies regionally and by country the allocations of radio spectrum. [14] The ISM (industrial, scientific, medical) bands provide frequencies for license-free radio communications given a set of power output constraints. The ISM frequencies and common applications are shown in Table 35-1.
Wireless Communication Systems
Published in Keshab K. Parhi, Takao Nishitani, Digital Signal Processing for Multimedia Systems, 2018
The mitigation of signal fading in a wireless communication system is the most important task in system design. In the design of an efficient wireless communication network there are two fundamental resources which must be efficiently managed. One of these resources is that of radio spectrum, also referred to as frequency management, or frequency allocation. The other traditionally less well known resource management problem which is becoming increasingly important in modern spectrally efficient networks is that of transmitter power management. Proper management of the transmitter power requires the mitigation of the fading problem. Ineffective mitigation of the fading problem will result in a higher required transmitter power to achieve a given SNR for the required quality of service, which will cause higher interference elsewhere in the network.
Unplugging the Grid: Energy Surety via Wireless Power
Published in Strategic Planning for Energy and the Environment, 2018
Given the revolutionary nature of wireless power one might imagine this technology is many years away from realization. Remarkably, TWP is on a fast track to commercialization. Over 200 domestic and international patents have been filed to secure the intellectual property which describes the equipment and the techniques necessary to create a global system. Dozens of experiments and demonstrations have been conducted at multiple locations, documenting the ability to wirelessly transfer power across a range of frequencies and distances. In every instance, experimental data has matched theoretical predictions for Zenneck wave field strengths and ranges. In 2016, the inventors of this technology presented their analysis, experimental data, and conclusions at an Institute of Electrical and Electronics Engineers (IEEE) conference at Baylor University [10]. Subsequent presentations have been provided to numerous commercial entities, U.S. governmental organizations and conferences [11, 12]. The Federal Communications Commission (FCC) and National Telecommunications and Information Administration (NTIA) are engaged to coordinate frequency allocation requirements. Construction is underway on a full-scale transmitter probe to demonstrate the ability to transfer megawatts of utility grade electricity to receivers placed around the globe.