Title :
Performance evaluation of power control algorithms in cellular UTRA systems
Author :
Forkel, I. ; Seidenberg, P. ; Pabst, R. ; Heidelberger, G.
Author_Institution :
Tech. Hochschule Aachen, Germany
Abstract :
The CDMA based UMTS transmission technology in which all users simultaneously share the same common range of spectrum gets rather affected by the system interference. The reduction of interference is therefore a key issue in the development of optimal radio transmission in order to increase the system capacity. Power control is a well-known technology to improve the system performance. Different methods and their application within UMTS are presented. In this paper, level-based and interference-based control algorithms are introduced. An analytical approach for the capacity estimation is presented. The power control performance is compared by means of simulations and the optimal parameters for the algorithms are derived from the results
Keywords :
cellular radio; channel capacity; code division multiple access; interference suppression; multiuser channels; optimisation; power control; radio access networks; radiofrequency interference; telecommunication control; CDMA based UMTS transmission technology; FDD system; TDD system; UMTS Terrestrial Radio Access; capacity estimation; carrier to interference ratio; cellular UTRA systems; interference reduction; interference-based control algorithms; level-based control algorithms; optimal parameters; optimal radio transmission; performance evaluation; power control algorithms; power control performance; simulations; spectrum sharing; system capacity; system interference; system performance;
Conference_Titel :
3G Mobile Communication Technologies, 2001. Second International Conference on (Conf. Publ. No. 477)
Conference_Location :
London
Print_ISBN :
0-85296-731-4
DOI :
10.1049/cp:20010003
