5 citations · 11 across the 12 of their papers we have counts for
8 papers · 1 filter
UWB Air-to-Ground Propagation Channel Measurements and Modeling using UAVs
Wahab Khawaja, Ozgur Ozdemir, Fatih Erden +2
This paper presents an experimental study of the air-to-ground (AG) propagation channel through ultrawideband(UWB) measurements in an open area using unmanned-aerial-vehicles (UAVs…
Effect of Passive Reflectors for Enhancing Coverage of 28 GHz mmWave Systems in an Outdoor Setting
Wahab Ali Gulzar Khawaja, Ozgur Ozdemir, Fatih Erden +3
The availability of large unused spectrum at millimeter wave (mmWave) frequency bands has steered the future 5G research towards these bands. However, mmWave signals are attenuated…
Impact of 3D UWB Antenna Radiation Pattern on Air-to-Ground Drone Connectivity
Jianlin Chen, Devin Raye, Wahab Khawaja +2
Three dimensional (3D) radiation pattern of an antenna mounted at a drone can significantly influence the air-to-ground (A2G) link quality. Even when a drone transmitter is very cl…
Indoor Coverage Enhancement for mmWave Systems with Passive Reflectors: Measurements and Ray Tracing Simulations
Wahab Khawaja, Ozgur Ozdemir, Yavuz Yapici +3
The future 5G networks are expected to use millimeter wave (mmWave) frequency bands, mainly due to the availability of large unused spectrum. However, due to high path loss at mmWa…
UWB Channel Sounding and Modeling for UAV Air-to-Ground Propagation Channels
Wahab Khawaja, Ismail Guvenc, David Matolak
Unmanned aerial vehicles (UAVs) are expected to be used extensively in the near future in applications such as aerial surveillance, transportation, and disaster assistance. The con…
Temporal and Spatial Characteristics of mmWave Propagation Channels for UAVs
Wahab Khawaja, Ozgur Ozdemir, Ismail Guvenc
Unmanned aerial vehicles~(UAVs) are envisioned to be an integral part of future 5G communication systems. The agile nature of UAVs for serving users at different locations can help…