A Concept of Power Control in Cellular Radio Systems
1999 (English)Report (Other academic)
Abstract [en]
Due to the rapid expansion of the cellular radio systems market, and the need for wireless multimedia services, the available resources have to be utilized efficently. A common strategy is to control the transmitter powers of the mobiles and base stations. However, when applying power control to real systems, a number of challenges are prevalent. The performance is limited by time delays, nonlinearities and the availability of measurements and adequate quality measures. In this paper we present a Power Regulator concept, which comprises an Unknown Input Observer, a Quality Mapper and a Power Control Algorithm. The applicability of the concept is exemplified using frequency hopping GSM, and simulations indicate benefits of employing the proposed concept.
Place, publisher, year, edition, pages
Linköping: Linköping University Electronic Press, 1999. , p. 14
Series
LiTH-ISY-R, ISSN 1400-3902 ; 2147
Keywords [en]
Cellular radio systems, Power control, Estimation, Nonlinear filters, Delay analysis, PI controllers
National Category
Control Engineering
Identifiers
URN: urn:nbn:se:liu:diva-55705ISRN: LITH-ISY-R-2147OAI: oai:DiVA.org:liu-55705DiVA, id: diva2:316446
2010-04-302010-04-302014-09-08Bibliographically approved