dc.contributor.author | Kakar, Jaber Ahmad | en_US |
dc.date.accessioned | 2015-06-24T08:01:57Z | |
dc.date.available | 2015-06-24T08:01:57Z | |
dc.date.issued | 2015-06-23 | en_US |
dc.identifier.other | vt_gsexam:5764 | en_US |
dc.identifier.uri | http://hdl.handle.net/10919/53512 | |
dc.description.abstract | Unmanned Aerial Vehicles (UAV) are expected to be deployed both by government and
industry. Rules for integrating commercial UAVs into a nation's airspace still need to be
defined, safety being the main concern. As part of this thesis, the communication needs of
UAVs as important requirement for UAV integration into the national airspace is considered.
Motivated by recent prediction of UAV quantities, revealing the importance of Micro UAVs
(MAV) and Small UAVs (SUAV), the thesis determines spectral requirements for control and
non-payload communication (CNPC). We show that spectral efficiency, particularly in the
downlink, is critical to the large-scale deployment of UAVs. Due to the limited range of small
SUAV and MAV systems, communication between air and ground elements of these UAVs is
established through radio Line-of-Sight (LoS) links. Ultimately, efficient LoS UAV systems
are based on a better understanding of channels in the downlink, i.e. air-to-ground (A2G)
channels, and also on efficient waveform as well as spectrum management implementation.
Because of limited research in wideband aeronautical channel modeling, we have derived
an A2G channel prototype applicable to SUAV and MAV. As part of the research at Wire-
less@VT in designing and prototyping Orthogonal Frequency Division Multiplexing (OFDM)
waveforms, this thesis derives the optimal parameters for SUAV and MAV A2G channels.
Finally, the thesis discusses concepts that relate flight route with spectrum management
as well as opportunities for a more dynamic spectrum allocation for UAV communication
systems. | en_US |
dc.format.medium | ETD | en_US |
dc.publisher | Virginia Tech | en_US |
dc.rights | This Item is protected by copyright and/or related rights. Some uses of this Item may be deemed fair and permitted by law even without permission from the rights holder(s), or the rights holder(s) may have licensed the work for use under certain conditions. For other uses you need to obtain permission from the rights holder(s). | en_US |
dc.subject | Unmanned Aerial Vehicles | en_US |
dc.subject | OFDM | en_US |
dc.subject | Spectrum Management | en_US |
dc.subject | Air-to-Ground Channels | en_US |
dc.title | UAV Communications: Spectral Requirements, MAV and SUAV Channel Modeling, OFDM Waveform Parameters, Performance and Spectrum Management | en_US |
dc.type | Thesis | en_US |
dc.contributor.department | Electrical and Computer Engineering | en_US |
dc.description.degree | Master of Science | en_US |
thesis.degree.name | Master of Science | en_US |
thesis.degree.level | masters | en_US |
thesis.degree.grantor | Virginia Polytechnic Institute and State University | en_US |
thesis.degree.discipline | Electrical Engineering | en_US |
dc.contributor.committeechair | Marojevic, Vuk | en_US |
dc.contributor.committeemember | Dietrich, Carl B. | en_US |
dc.contributor.committeemember | Beex, Aloysius A. | en_US |