IEM Distinguished Lecturers Seminar: The move to Terahertz – why it will happen and a new framework to reduce wasted power and maximize energy in future wireless networks.
Abstract
Future wireless cellular networks will utilize millimeter wave and sub-THz frequencies and deploy small-cell base stations to achieve data rates on the order of hundreds of Gigabits per second per user. The move to sub-THz frequencies will require attention to sustainability and reduction of power whenever possible to reduce the carbon footprint while maintaining adequate battery life for the massive number of resource constrained devices to be deployed. This article analyzes power consumption of future wireless networks using a new metric, the power waste factor (W), which shows promise for the study and development of “green G” - green technology for future wireless networks. Using W, power efficiency can be considered by quantifying the power wasted by all devices on a signal path in a cascade. We then show that the consumption efficiency factor (CEF), defined as the ratio of the maximum data rate achieved to the total power consumed, is a novel and powerful measure of power efficiency that shows less energy per bit is expended as the cell size shrinks and carrier frequency and channel bandwidth increase. Our findings offer a standard approach to calculating and comparing power consumption and energy efficiency in cascaded systems. Finally, we postulate this framework could be applied to other aspects of power efficiency metrics for data centers, base stations, algorithmic design, and software design.
Bio
Theodore (Ted) S. Rappaport ([email protected]) is the David Lee/Ernst Weber Professor in Electrical and Computer Engineering at New York University (NYU), and is a professor in the NYU Courant Computer Science Dept. and the NYU School of Medicine. He founded the NYU WIRELESS research center and the wireless research centers at the University of Texas Austin (WNCG) and Virginia Tech (MPRG). His work has provided fundamental knowledge of wireless channels and system design for the first IEEE 802.11 Wi-Fi standard, the first U.S. digital TDMA and CDMA standards, the first public Wi-Fi hotspots, and proved the viability of millimeter wave and Terahertz frequencies for 5G, 6G, and beyond. He founded two businesses that were sold to publicly traded companies – TSR Technologies, Inc. and Wireless Valley Communications, Inc., and was an advisor to Straight Path Communications which sold 5G millimeter wave spectrum to Verizon. He is a licensed Professional Engineer and is a member of the Wireless Hall of Fame, the US National Academy of Engineering, a Fellow of the US National Academy of Inventors, and a life member of the American Radio Relay League. His amateur radio call sign is N9NB.
Future wireless cellular networks will utilize millimeter wave and sub-THz frequencies and deploy small-cell base stations to achieve data rates on the order of hundreds of Gigabits per second per user. The move to sub-THz frequencies will require attention to sustainability and reduction of power whenever possible to reduce the carbon footprint while maintaining adequate battery life for the massive number of resource constrained devices to be deployed. This article analyzes power consumption of future wireless networks using a new metric, the power waste factor (W), which shows promise for the study and development of “green G” - green technology for future wireless networks. Using W, power efficiency can be considered by quantifying the power wasted by all devices on a signal path in a cascade. We then show that the consumption efficiency factor (CEF), defined as the ratio of the maximum data rate achieved to the total power consumed, is a novel and powerful measure of power efficiency that shows less energy per bit is expended as the cell size shrinks and carrier frequency and channel bandwidth increase. Our findings offer a standard approach to calculating and comparing power consumption and energy efficiency in cascaded systems. Finally, we postulate this framework could be applied to other aspects of power efficiency metrics for data centers, base stations, algorithmic design, and software design.
Bio
Theodore (Ted) S. Rappaport ([email protected]) is the David Lee/Ernst Weber Professor in Electrical and Computer Engineering at New York University (NYU), and is a professor in the NYU Courant Computer Science Dept. and the NYU School of Medicine. He founded the NYU WIRELESS research center and the wireless research centers at the University of Texas Austin (WNCG) and Virginia Tech (MPRG). His work has provided fundamental knowledge of wireless channels and system design for the first IEEE 802.11 Wi-Fi standard, the first U.S. digital TDMA and CDMA standards, the first public Wi-Fi hotspots, and proved the viability of millimeter wave and Terahertz frequencies for 5G, 6G, and beyond. He founded two businesses that were sold to publicly traded companies – TSR Technologies, Inc. and Wireless Valley Communications, Inc., and was an advisor to Straight Path Communications which sold 5G millimeter wave spectrum to Verizon. He is a licensed Professional Engineer and is a member of the Wireless Hall of Fame, the US National Academy of Engineering, a Fellow of the US National Academy of Inventors, and a life member of the American Radio Relay League. His amateur radio call sign is N9NB.
Practical information
- General public
- Free