UMTS optimum cell load balancing for inhomogeneous traffic patterns

Author

García-Lozano, Mario ; Ruiz, Silvia ; Olmos, Juan J.

Author_Institution

Dept. of Signal Theor. & Commun., Univ. Politecnica de Catalunya, Barcelona, Spain

Volume

2

fYear

2004

fDate

26-29 Sept. 2004

Firstpage

909

Abstract

The paper addresses the problem of adjusting simultaneously the electrical downtilt of base station antennas and the transmitted power assigned to common pilot channel (CPICH) signals in the framework of a UTRA-FDD system. The proposed optimization procedure is not based on an isolated cell by cell analysis, but on a global scenario by means of simulated annealing. Results show the convergence of the algorithm towards configurations that imply optimal system performance. Interference levels are minimized, effective cell load is reduced and therefore capacity can be increased.

Keywords

3G mobile communication; cellular radio; code division multiple access; frequency division multiplexing; interference suppression; minimisation; radio access networks; radiofrequency interference; simulated annealing; telecommunication traffic; UMTS optimum cell load balancing; UTRA-FDD system; W-CDMA; WCDMA; base station antenna electrical downtilt; common pilot channel signals; effective cell load; inhomogeneous traffic patterns; interference level minimization; optimization procedure; simulated annealing; transmitted power; 3G mobile communication; Analytical models; Base stations; Context modeling; Interference; Load management; Shape control; Simulated annealing; System performance; Transmitting antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2004. VTC2004-Fall. 2004 IEEE 60th

ISSN

1090-3038

Print_ISBN

0-7803-8521-7

Type

conf

DOI

10.1109/VETECF.2004.1400153

Filename

1400153