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动态资源分配(DCA)是解决无线信道紧张的最有限途径之一,文中研究CDMA系统动态资源分配下的QoS性能。从CDMA自干扰受限系统出发,分析信道优先级的排队算法以及上下行信号的接入控制算法,从而进一步提出接入用户的信道资源的优化调整方案,来提高系统服务质量(QoS)等级。文中进行了系统的仿真研究,从系统模型分析和仿真研究结果表明,文中给出的算法使系统掉话率下降,系统的性能得到改善。
Dynamic Resource Allocation (DCA) is one of the most limited ways to solve the wireless channel stress. In this paper, we study the QoS performance under the dynamic resource allocation of CDMA system. Based on the CDMA self-interference limited system, the queuing algorithm of channel priority and the access control algorithm of uplink and downlink signals are analyzed. Then, the optimal adjustment scheme of channel resources to access users is proposed to improve the system quality of service (QoS). The simulation of the system is carried out in this paper. The results of system model analysis and simulation show that the algorithm given in this paper reduces the system call drop rate and improves the system performance.