In-Band Transition of
a Nationwide Air/Ground Radio System From an Analog to a Digital Architecture
2003 Award Winner
Frank Box, The MITRE Corporation
Philip I. Longe, The MITRE Corporation
ABSTRACT
The Next-Generation Air/Ground (A/G) Radio Communications
System (NEXCOM) will provide a digital voice and
data capability for air traffic control in United States airspace.
The nationwide transition from today's all-voice analog system to
NEXCOM will take several years. Since digital interference characteristics
differ markedly from those of analog radios, most A/G
radio circuits will need to change their operating frequencies when
they are converted to NEXCOM, to avoid RF interference with
neighboring circuits. The size and complexity of the system make
it a challenging task to identify an incremental sequence of frequency
changes that will enable a smooth, gradual, and cost-effective
transition. In this paper, we present simulation results demonstrating
the feasibility of a nondisruptive incremental transition to
NEXCOM and identify specific measures for reducing the complexity
of the transition and, thus, its overall cost.
Publication
Copyright © 2004 IEEE. Reprinted from IEEE Transactions on
Vehicular Technology, Vol. 52, No. 3, pp. 701-707. May 2003. This
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Additional Search Keywords
aeronautical, air/ground, communications, digital, frequency
assignment, interference, radio, spectrum, time-division multiple-access
(TDMA), transition
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