W-CDMA downlink performance analysis

Abstract

This paper intends to give a detailed analysis of the downlink performance in a CDMA system, more precisely for the radio interface of the W-CDMA. This analysis will allow to treat capacity and coverage issues in a formal way, as well as to identify key parameters specific of the CDMA technology, leading to a better understanding of the performances of the downlink. An expression for downlink cell load will be derived, allowing an analytical approach towards dimensioning.

Adaptive channel reservation for call admission control to support prioritized soft handoff calls in a cellular CDMA system

“…The diversity gain for MSs must be considered. Two assumptions are possible to represent the handoff gain, they are the features of UMTS [9] and have been widely applied [4,[10][11][12]: (1) the transmission power signal from each involved BS is the same. If an MS is in a handoff zone in which two BSs (BS 1 and BS 2) are involved, under SHO, the first assumption implies that the transmitted power signal from BS 1 to the MS is same as the power signal from BS 2 to the MS.…”