Preamble Design Technique for GMSK-Based Beamforming System With Multiple Unmanned Aircraft Vehicles

The use of beamforming techniques at the ground station is known to be effective in obtaining coverage extension or SNR gain for communication with unmanned aerial vehicles (UAVs). When a UAV moves, periodic beam tracking is necessary to maintain beam gain. To track beams for multiple UAVs, the grou...

Full description

Saved in:
Bibliographic Details
Published in:IEEE transactions on vehicular technology 2017-08, Vol.66 (8), p.7098-7113
Main Authors: Maeng, Sung Joon, Park, Hae-in, Cho, Yong Soo
Format: Article
Language:English
Subjects:
Array signal processing
Baseband
Beam-tracking
Beamforming
Beams (radiation)
Communications systems
Computer simulation
Gaussian minimum shift keying (GMSK)
Ground stations
Hadamard sequence
Keying
L-band
Military technology
Modulation
multiple unmanned aerial vehicles (UAVs)
Three dimensional models
Tracking
Unmanned aerial vehicles
Unmanned aircraft
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The use of beamforming techniques at the ground station is known to be effective in obtaining coverage extension or SNR gain for communication with unmanned aerial vehicles (UAVs). When a UAV moves, periodic beam tracking is necessary to maintain beam gain. To track beams for multiple UAVs, the ground station needs to receive different preambles from multiple UAVs. In this paper, a Hadamard sequence is considered for designing preambles for multiple UAVs because of its ideal cross-correlation property. A preamble that is appropriate for a Gaussian minimum shift keying (GMSK)-based communication system with multiple UAVs is proposed after analyzing the property of received signals in the system with the Hadamard sequence as the input. A preamble appropriate for asynchronous channel environments is also proposed after analyzing the property of the signals received from multiple UAVs with different time delays. The performance of the proposed preambles in the GMSK-based communication system with multiple UAVs is evaluated via simulation with a 3-D spatial channel model in both synchronous and asynchronous channel environments.
ISSN:0018-9545
1939-9359
DOI:10.1109/TVT.2017.2673856