Capacity Analysis of Downlink CDMA Systems with Quasi-Orthogonal Sequences

— We analyze the user capacity of downlink CDMA systems with quasi-orthogonal sequences(QOSs) considering various system parameters, such as user activity, spreading factor, the amount of transmission symbol energy allocated to common control channels, the amount of outer-cell interference, and sectorization factor. We also consider a power control mechanism with geometric factors such as propagation loss and shadowing effect. This user capacity analysis gives us the pole capacity of the system, which is the user capacity when all BSs transmit signals with unlimited power. Numerical examples show that the

• Type: Conference
• Year: 2006
• Where: GLOBECOM
• Authors: Sung Soo Cho, Bang Chul Jung, Dan Keun Sung
• Keywords: Downlink Cdma Systems, GLOBECOM 2006, Telecommunications , User Capacity, User Capacity Analysis