TY - GEN
T1 - LTE Radio Measurements Above Urban Rooftops for Aerial Communications
AU - Amorim, Rafhael Medeiros de
AU - Nguyen, Huan Cong
AU - Wigard, Jeroen
AU - Kovacs, Istvan
AU - Sørensen, Troels Bundgaard
AU - Mogensen, Preben Elgaard
PY - 2018/6/8
Y1 - 2018/6/8
N2 - This paper focus on the investigation of aerial communications for drones connected to cellular networks in urban areas. Most of the previous measurement based channel models for urban environments do not extend to users located at heights above rooftops. On the other hand, UAVs are expected to fly at the very low level (VLL) airspace, in heights much lower than those covered by previous air-to-ground models. By means of field measurements, this paper presents height-dependent closed form expressions for the urban channel model (path loss slope and shadowing) extending to heights up to 40 m and compares the observed results with 3GPP reference models and previous studies. Measurements were conducted by a radio scanner attached to a construction-lift to measure the radio signal from three different live LTE networks (800, 1800, and 2600 MHz). Results suggest radio path clearance increases with height. As a consequence, it leads to an increase in number of cells in the detectable range and in the set of neighbors within 3 dB of the serving cell in the receiver, indicating neighbor cells are closer to each other in the power domain.
AB - This paper focus on the investigation of aerial communications for drones connected to cellular networks in urban areas. Most of the previous measurement based channel models for urban environments do not extend to users located at heights above rooftops. On the other hand, UAVs are expected to fly at the very low level (VLL) airspace, in heights much lower than those covered by previous air-to-ground models. By means of field measurements, this paper presents height-dependent closed form expressions for the urban channel model (path loss slope and shadowing) extending to heights up to 40 m and compares the observed results with 3GPP reference models and previous studies. Measurements were conducted by a radio scanner attached to a construction-lift to measure the radio signal from three different live LTE networks (800, 1800, and 2600 MHz). Results suggest radio path clearance increases with height. As a consequence, it leads to an increase in number of cells in the detectable range and in the set of neighbors within 3 dB of the serving cell in the receiver, indicating neighbor cells are closer to each other in the power domain.
UR - http://www.scopus.com/inward/record.url?scp=85049190250&partnerID=8YFLogxK
U2 - 10.1109/WCNC.2018.8377373
DO - 10.1109/WCNC.2018.8377373
M3 - Article in proceeding
SN - 978-1-5386-1735-9
T3 - I E E E Wireless Communications and Networking Conference. Proceedings
BT - 2018 IEEE Wireless Communications and Networking Conference, WCNC 2018
PB - IEEE
T2 - IEEE Wireless Communications and Networking Conference
Y2 - 15 April 2018 through 18 April 2018
ER -