Capacity Analysis and Call Admission Control Scheme with Imperfect Power Control in Multimedia CDMA Networks
In some exiting Call Admission Control (CAC) schemes, perfect power control is implicitly assumed. But it is well known that in practical CDMA networks, the received power at Base Station (BS) is usually hard to be maintained at a fixed threshold because of fading and path loss. Therefore putting forward the CAC schemes with imperfect power control for multimedia traffic will be great significant. In this paper, the system capacity with imperfect power control and the other-cell interference factor are analyzed. And then considering the voice/video/data multimedia traffic scenario in next generation wireless network (NGWN), we propose a novel QoS based CAC scheme. The simulation results show that the system capacity is heavily affected by the imperfect power control. The proposed scheme can guarantee the QoS for different traffic efficiently, and improve the resource utility significantly.
Dandan Zhang Xuming Fang
School of Information Science and Technology Southwest Jiaotong University Chengdu, Sichuan, China
国际会议
2006 International Conference on Communications,Circuits and Systems(第四届国际通信、电路与系统学术会议)
广西桂林
英文
1352-1356
2006-06-25（万方平台首次上网日期，不代表论文的发表时间）