Researche On The Optimal Policy Of Wireless Resource Allocate In 3G Mobile Communication Networks

With the development of mobile communications, mobile users and Internet users are increasing dramatically. People expect that next generation mobile communication systems can provide larger capacity and support mobile multimedia services. Besides providing real-time speech service, next generation mobile communication systems are required to support non real-time services such as low/high rate data, pictures etc. Heterogeneous services have different quality of service (QoS) requirements, for example, the requirements of time delay, error bit rate, and transmission rate for heterogeneous services are difference.There are two main objects for wireless network design, one is to guarantee QoS requirements of heterogeneous services, and the other is to make resource utilization maximized. This recurs to radio resource management (RRM). CDMA system is a self-interfered one, the capacity of which is limited by co-channel interference. It's necessary to assign system resources reasonably. Radio resource management for the third generation mobile communication systems includes call admission control, handoff control, power control, load control and packet scheduling. This dissertation pays attention on call admission control, handoff control, power control and load control for mobile multimedia communication systems.Aim for the peculiarity of 3G system that can transmit multi-traffic, a CDMA systems call admission control policy for multi-services wireless cellular mobile system has been proposed. The traffic is branched out into handoff traffic, voice traffic and M class data traffic in light the difference QoS. After the mobile station ask to send information, the basic station will send the information to wireless channel with the BS's conveyance single as the synchronize information. The crisis questions will be copied with very good. When the loads crisis, all the traffic will overlap; When the loads don not crisis, and all the traffic will exist. When the network is open, the handoff calls are all serviced, and the...