Wcdma for Umts
Simulation of Communication Systems: Modeling, Methodology and Techniques
Simulation of Communication Systems: Modeling, Methodology and Techniques
Radio Network Planning and Optimisation for Umts
Radio Network Planning and Optimisation for Umts
Investigation of radio resource scheduling in WLANs coupled with 3G cellular network
IEEE Communications Magazine
Congestion relief on power-controlled CDMA networks
IEEE Journal on Selected Areas in Communications
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Next generation wireless systems are designed for multimedia communication, with a wide range of data types and rates all sharing the same wireless infrastructure. In order to provide services with high capacity and desired quality of service, the system requires efficient resource allocation. In a system based on a code division multiple access technique, every user contributes to the interference characteristics of the system. This interference power is proportional to the transmitter power. It is clear that power control is the most important factor which allows more efficient resource sharing by balancing received signal quality and interference power. This study presents the results of a wideband code division multiple access (WCDMA) system with antenna array, employing a multiple path connections (MPC) scheme. MPC is a type of global resource sharing in a wireless network. Furthermore, MPC is a means to reduce call rejection with the usage of split connections and radio resource availability. Simulation results show that a four-element antenna array at the base station provides a capacity gain of 2.2 in mixed traffic scenarios. With the additional of the MPC scheme, a capacity improvement of about 22--36% can be seen under this multi-beam system.