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Start Over Author "Brian Fox" Journal eurasip journal on wireless communications and networking
2 results on '"Brian Fox"'

1. System design of the physical layer for Loon’s high-altitude platform

Author

Sharath Ananth, Ben Wojtowicz, Alfred Cohen, Nidhi Gulia, Arunoday Bhattacharya, and Brian Fox

Subjects
Loon, Unmanned areal vehicle (UAV), Channel model, Air-to-ground communication environments, Polarization diversity, Cochannel interference, Telecommunication, TK5101-6720, Electronics, TK7800-8360
Abstract

Abstract This paper describes several aspects of the physical layer and over the air interface of Loon. Loon utilizes stratospheric balloon-based high-altitude platforms (HAPs) that use Long-Term Evolution (LTE) to connect people with standard User Equipment (UEs) to the Internet. In particular, topics covered include the Loon prototype eNodeB (eNB) antenna pattern, the observed channel, UE battery life, and coexistence with terrestrial networks using the same spectrum. While channel models from a HAP to the ground have been well studied in the past, the use of polarization diversity to establish Multi-Input Multi-Output (MIMO) communication to real UEs below 1 GHz has not. In addition, a theoretical analysis of terrestrial coexistence and an analysis of the estimated impact on UE battery life when communicating with HAPs are presented. Finally, results from several measurement campaigns and from experiments with polarization diversity are presented as a spot check of theory.

Published
2019
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2. System design of the physical layer for Loon’s high-altitude platform

Author

Arunoday Bhattacharya, Sharath Ananth, Ben Wojtowicz, Brian Fox, Alfred Cohen, and Nidhi Gulia

Subjects
Computer Networks and Communications, Computer science, Interface (computing), Real-time computing, lcsh:TK7800-8360, 02 engineering and technology, 01 natural sciences, lcsh:Telecommunication, Unmanned areal vehicle (UAV), lcsh:TK5101-6720, 0202 electrical engineering, electronic engineering, information engineering, Channel model, Polarization diversity, business.industry, 010401 analytical chemistry, lcsh:Electronics, Physical layer, 020206 networking & telecommunications, Effects of high altitude on humans, 0104 chemical sciences, Computer Science Applications, Signal Processing, Cochannel interference, Systems design, The Internet, Air-to-ground communication environments, business, Loon
Abstract

This paper describes several aspects of the physical layer and over the air interface of Loon. Loon utilizes stratospheric balloon-based high-altitude platforms (HAPs) that use Long-Term Evolution (LTE) to connect people with standard User Equipment (UEs) to the Internet. In particular, topics covered include the Loon prototype eNodeB (eNB) antenna pattern, the observed channel, UE battery life, and coexistence with terrestrial networks using the same spectrum. While channel models from a HAP to the ground have been well studied in the past, the use of polarization diversity to establish Multi-Input Multi-Output (MIMO) communication to real UEs below 1 GHz has not. In addition, a theoretical analysis of terrestrial coexistence and an analysis of the estimated impact on UE battery life when communicating with HAPs are presented. Finally, results from several measurement campaigns and from experiments with polarization diversity are presented as a spot check of theory.

Published
2019

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