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E-Book
TRAINING COURSE
Point-to-Point
Radio Link Engineering (PPRLE)
The PPRLE Course deals
with fundamental concepts in radio propagation and application to the design
of point-to-point radio links and networks. It is
available for Free
Download in E-Book format. HERALD Licensed users receive this course free
of charge.
The Course material
is organized in eight Sessions. Each Session includes Course Notes and the
"HERALD Lab" (radio link design exercises). An e-mail tutoring
service is available to registered users. For
additional information, please select one of the following sections :
Session_Contents
HERALD_Lab
Tutoring_Service
Course_Registration_and_Delivery
Sample_Chapter_Download
Session Contents
 Session 1, Hop Configuration : radio
hop and terminal site configuration; characterization of radio equipments and
antennas, main parameters; equipment parameters relevant to interference
analysis; passive repeaters.
Session 2, Basics in Link Engineering :
free space propagation, free space loss, link budget; main impairments in
terrestrial radio links; fade margin, general concepts in outage prediction.
Session 3, Path Clearance : effect of
atmospheric refraction (ray trajectories, k-factor); description of path profile;
Fresnel ellipsoid and visibility criteria; estimate of obstruction loss
(obstacle type; single and multiple obstacles).
Session 4, Ground Reflections : path
geometry, main parameters; contribution to reflected ray loss and phase
shift; Rx power vs. antenna height and k-factor, diversity configuration;
reflection coefficient vs. surface type, frequency and polarization.
Session 5, Multipath fading :
atmospheric refraction, multiple ray trajectories; Rayleigh fading, multipath
activity factor; frequency selective fading, signature measurements;
narrowband/ wideband prediction models; countermeasures (equalization,
antenna and frequency diversity).
Session 6, Rain attenuation : EM wave
interaction with atmosphere (water vapor, oxygen, raindrops); rain
attenuation vs. rain-rate, frequency, and polarization; ITU rain statistics,
rain intensity prediction model; frequency / polarization scaling.
Session 7, Interference : RF channel
arrangements (co-channel, interleaved, patterns); ITU-R Recs; analysis and
classification of interference sources in linear, radial and meshed networks;
estimate of interference power, effect of propagation; performance
degradation caused by interference.
Session 8, ITU objectives : Error
performance and unavailability objectives, relevant parameters; application
of ITU-T Recs. G.821 and G.826 to radio links; other relevant ITU-T and ITU-R
recommendations; example presentation; comparison with design predictions.
In each Session, presentation is
organized in two steps: the Basic level is addressed to a single hop
design and introduces the most usual and simple propagation models. The Advanced
level gives a more detailed treatment of additional topics; it covers RF
planning, interference, ITU performance objectives and in-depth propagation
modeling.
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HERALD Lab
Each Course Session is complemented with radio
link design exercises ("HERALD Lab"). The HERALD program (Professional edition) is used
to execute the design exercises. Each exercise is illustrated with
step-by-step instructions. If you are
not a HERALD licensee, you can execute the HERALD Lab exercises using the HERALD
Demo release.
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Tutoring Service
An e-mail tutoring service is available
to registered users. In any moment, you can ask questions and you receive
assistance, both in clarifying basic theory and in executing design
exercises.
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Course Registration and Delivery
The PPRLE Course material includes :
 Course Notes, Basic and Advanced Sessions
(E-Book format)
HERALD Lab guided exercises (E-Book
format)
HERALD Demo (available for free download
Four month e-mail tutoring service.
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Copyright © Luigi Moreno, Torino
(Italy) 1998-2010, All rights reserved
Phone & Fax +39-011-8194575 -
E-mail : info(at)radioengineering.it
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