Title :
Performance Study on the Effects of Cell-Breathing in WCDMA
Author :
Thng, Kay Leong ; Yeo, Boon Sain ; Chew, Yong Huat
Author_Institution :
Institute for Infocomm Res.
Abstract :
The performance of CDMA cellular systems over the air is generally interference-limited. A phenomena arising from this is the effect of cell-breathing in 3G cellular systems. Cell-breathing is the expansion or contraction of the effective coverage of a cell in response to the number of active mobiles (MSs) in a network. If it is not well controlled, communication failure may result. With 3G offering different classes of services, planning and dimensioning of such high-quality radio networks thus requires extensive planning tools. Despite the progressive rolling out of 3G systems worldwide, the effects of cell-breathing are not well understood. In this work, a simulator is set up to study the effect of cell breathing. Simulation results show how the area where reliable coverage can be provided by a base station (BS) may varies as the density of MSs changes within it. Current work emphasizes on the downlink simulation with a single BS followed by a similar simulation involving 2 BS. The results demonstrate how cell-breathing may cause communications failure
Keywords :
cellular radio; code division multiple access; radio links; telecommunication network planning; WCDMA cellular systems; base station; cell-breathing; downlink simulation; radio networks; 3G mobile communication; Base stations; Communication system control; Downlink; Interference; Mobile communication; Multiaccess communication; Quality of service; Radio network; Telecommunication network reliability;
Conference_Titel :
Wireless Communication Systems, 2005. 2nd International Symposium on
Conference_Location :
Siena
Print_ISBN :
0-7803-9206-X
DOI :
10.1109/ISWCS.2005.1547652