Towards unlicensed cellular networks in TV white spaces
Ghufran Baig, Dan Alistarh, Thomas Karagiannis, Božidar Radunović, Matthew Balkwill, Lili Qiu · 2017
In this paper we study network architecture for unlicensed cellular networking for outdoor coverage in TV white spaces. The main technology proposed for TV white spaces is 802.11af, a Wi-Fi variant adapted for TV frequencies. However, 802.11af is originally designed for improved indoor propagation. We show that long links, typical for outdoor use, exacerbate known Wi-Fi issues, such as hidden and exposed terminal, and significantly reduce its efficiency.