| 多媒体CDMA系统功率控制算法 |
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| 引用本文： | 徐兵,李司坤,王宗欣.多媒体CDMA系统功率控制算法[J].复旦学报(自然科学版),2006,45(4):421-425,436. |
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| 作者姓名： | 徐兵 李司坤 王宗欣 |
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| 作者单位： | 复旦大学,通信科学与工程系,上海,200433 |
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| 摘 要： | 提出了一种新的适用于多媒体CDMA系统的功率控制算法.该算法把用户的多媒体服务分成可变比特速率(VBR)服务和不可变比特速率(CBR)服务,对不可变比特速率服务采用纯粹的功率控制,对可变比特速率服务采用功率控制和速率控制相结合的方法,以满足各自不同的服务质量(QoS)要求.同时假设同一小区内同类服务的用户到达基站的功率相等,通过求解此功率,大大降低了集中功率控制的运算量.
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| 关 键 词： | 移动通信 CDMA 功率控制 速率控制 多媒体 服务质量(QoS) |
| 文章编号： | 0427-7104（2006）04-0421-05 |
| 收稿时间： | 2005-06-09 |
| 修稿时间： | 2005-06-09 |
A New Power Control Algorithm for Multimedia CDMA Systems |
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| XU Bing,LI Si-kun,WANG Zong-xin.A New Power Control Algorithm for Multimedia CDMA Systems[J].Journal of Fudan University(Natural Science),2006,45(4):421-425,436. |
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| Authors: | XU Bing LI Si-kun WANG Zong-xin |
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| Institution: | Department of Communication Science and Engineering, Fudan University, Shanghai 200433, China |
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| Abstract: | A new power control algorithm for wideband multimedia CDMA systems is proposed,which divides multimedia services into variant bit rate(VBR) services and constant bit rate(CBR) services.To satisfy different QoS requirements of different traffics,the new algorithm uses only power control for CBR services,while combining power control and rate control for VBR services.In addition,it is supposed that each base station receives equal power from different mobile stations(MS) with the same kind of service.By calculating these power values,instead of transmission power of each MS,the complexity of power control will be reduced considerably. |
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| Keywords: | mobile communication CDMA power control rate control multimedia QoS |
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