Abstract:
This research work deals with the development of an SDH based microwave
digital radio core network for tri-services organizations of Bangladesh. keeping
technical, strategic, tactical, operational and administrative issues in
consideration. All potential areas of the country have been surveyed and
considered for transmission coverage and then radio sites are selected in such a
manner that all areas of strategic interest and the ground of tactical importance
are covered most effectively.
Important parameters / data of radio equipment and the site survey report are fed
to the 'microwave link budget calculation worksheet' in order to obtain path profile
report of every radio link needed to form the core network. Basing on the path
profile report, the core radio network is designed. The evaluation process of
reliability is as ITU-R P.530-7/8 where propagation data and prediction methods
required for designing the terrestrialline-of-sight systems is considered.
Basing on the path profile reports and ITU transmission standard, a computer
program named 'Microwave Link Evaluation Software' has been developed to
assess the performance of the designed links. The developed software performs
the analytical comparisons of the performance of the designed network with the
ITU published transmission standard to ascertain the correctness of the designed
network.
