bachelorThesis
Migración de la arquitectura D-RAN a C-RAN en radiobases del sector Intercambiador Carapungo
Fecha
2022-01Autor
Abril Reyes, Adriana Natalia
Institución
Resumen
The exponential growth brought by new generations of mobile telephony is focused on
maximizing traffic, dramatically improving the user experience of services and applications.
Therefore, to carry out these objectives, the network needs to converge to a higher bandwidth,
optimize its resources and offer higher speeds. Users of a cellular mobile network, in addition
to the unlimited use of social media, now seek video transmission and download experience in
real time, this proves to be an unsustainable pressure on the current existing RAN (radio access
network).
This technical degree project aims to demonstrate the improvement in the key performance
indicators or KPI of one or more base stations, when implementing an architecture migration
plan. The data provided by the different simulation scenarios allows to demonstrate the benefits
of migrating from a traditional distributed radio access architecture (D-RAN) to a state of the
art centralized architecture (C-RAN). The Carapungo interchange is chosen as the proposed
migration site for study. The contemplated hardware (equipment) and software (virtual agents)
requirements are described in detail, with special emphasis on the Common Public Radio
Interface (CPRI) and the speed dimensioned according to its requirements. The data produced
by the simulation show a global average gain of 4.27%, going from an efficiency in D-RAN of
93.45% to 97.72% in the C-RAN architecture. This gain considers that, to achieve better
efficiency, the network topology will base its processing on centralized BBUs physically
located in a Data Center. The BBU Pool applies the robust algorithms and strategies necessary
to control parameters such as transmission power, user allocation and data rates. The efficiency
and performance improvement of the coordinated pool are greater in advantages compared to a
distributed RAN.