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In third-generation CDMA mobile communication systems, high data rate services are essential for many key applications. However, as the user approaches the cell border, the desired signal suffers from the increase of propagation loss and co-channel interference from neighboring cells and the link adaptation mechanism will diminish the data rate to maintain link performance. This implies that the valid cell coverage shrinks as the data rate increases. In this work, the downlink bit error probability for third-generation CDMA systems is analyzed. Additionally, from the viewpoint of service adaptation, the outage probability due to shadowing effects and the variance of maximum available data rate are well examined. The results obtained in this work can be applied to the applications of service adaptation, cell planning, traffic planning, and radio resource management.
Vehicular Technology Conference, 2004. VTC 2004-Spring. 2004 IEEE 59th (Volume:5 )
Date of Conference: 17-19 May 2004