TY - JOUR
T1 - An Empirical Air-to-Ground Channel Model Based on Passive Measurements in LTE
AU - Cai, Xuesong
AU - Rodríguez-Piñeiro, José
AU - Yin, Xuefeng
AU - Wang, Nanxin
AU - Ai, Bo
AU - Pedersen, Gert F.
AU - Pérez Yuste, Antonio
PY - 2019/2
Y1 - 2019/2
N2 - In this paper, a recently conducted measurement campaign for unmanned-aerial-vehicle channels is introduced. The downlink signals of an in-service long-time-evolution network, which is deployed in a suburban scenario were acquired. Five horizontal and five vertical flight routes were considered. The channel impulse responses (CIRs) are extracted from the received data by exploiting the cell-specific signals, and the underlying physical propagation mechanisms are interpreted by exploiting the propagation graph modeling approach. Based on the CIRs, the parameters of multipath components are estimated by using a high-resolution algorithm derived according to the space-alternating generalized expectation-maximization (SAGE) principle. Based on the SAGE results, channel characteristics including the path loss, shadow fading, fast fading, delay spread, and Doppler frequency spread are thoroughly investigated for different heights and horizontal distances, which constitute a stochastic model.
AB - In this paper, a recently conducted measurement campaign for unmanned-aerial-vehicle channels is introduced. The downlink signals of an in-service long-time-evolution network, which is deployed in a suburban scenario were acquired. Five horizontal and five vertical flight routes were considered. The channel impulse responses (CIRs) are extracted from the received data by exploiting the cell-specific signals, and the underlying physical propagation mechanisms are interpreted by exploiting the propagation graph modeling approach. Based on the CIRs, the parameters of multipath components are estimated by using a high-resolution algorithm derived according to the space-alternating generalized expectation-maximization (SAGE) principle. Based on the SAGE results, channel characteristics including the path loss, shadow fading, fast fading, delay spread, and Doppler frequency spread are thoroughly investigated for different heights and horizontal distances, which constitute a stochastic model.
KW - Antenna measurements
KW - Communication channels
KW - Delays
KW - Fading channels
KW - Frequency measurement
KW - Long Term Evolution
KW - Narrowband
KW - Unmanned aerial vehicle
KW - air-to-ground channel
KW - channel dispersions
KW - fading behaviours
KW - propagation graph
KW - fading behaviors
UR - http://www.scopus.com/inward/record.url?scp=85058901968&partnerID=8YFLogxK
U2 - 10.1109/TVT.2018.2886961
DO - 10.1109/TVT.2018.2886961
M3 - Journal article
SN - 0018-9545
VL - 68
SP - 1140
EP - 1154
JO - IEEE Transactions on Vehicular Technology
JF - IEEE Transactions on Vehicular Technology
IS - 2
M1 - 8576578
ER -