Authors:
Daniel Figueiredo
;
Pedro Matos
;
Nuno Cota
and
António Rodrigues
Affiliation:
Instituto Superior Técnico, Technical University of Lisbon, Portugal
Keyword(s):
WCDMA, adjacent channel interference (ACI), FDD, spectrum management.
Related
Ontology
Subjects/Areas/Topics:
Data Communication Networking
;
Information and Systems Security
;
Network Management
;
Performance Analysis of Wireless Networks
;
Telecommunications
;
Wireless and Mobile Technologies
;
Wireless Information Networks and Systems
Abstract:
The adjacent channel interference (ACI) can result in a reduced network capacity in a multioperator WCDMA/FDD environment. This paper is devoted to the study of the ACI, using a static simulator. Simulations were performed in order to identify particular scenarios and network compositions where ACI plays a major role in the system capacity. On the basis of the results, the authors identify the best strategy for frequency deployment within the available spectrum. It is demonstrated that the macro carrier should be located in the centre of the frequency band, protected from the ACI introduced by other operators. It is, in fact, the carrier which suffers the greatest losses caused by the increase in ACI. Furthermore, the micro carrier should be placed as close as possible to the adjacent channel of other operators in order to maximize system capacity.