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多業(yè)務(wù)蜂窩CDMA系統(tǒng)中的呼叫接納控制策略

王宇,  李少謙,  李樂(lè)民,  高卓

王宇, 李少謙, 李樂(lè)民, 高卓. 多業(yè)務(wù)蜂窩CDMA系統(tǒng)中的呼叫接納控制策略[J]. 電子與信息學(xué)報(bào), 2003, 25(2): 145-151.
引用本文: 王宇, 李少謙, 李樂(lè)民, 高卓. 多業(yè)務(wù)蜂窩CDMA系統(tǒng)中的呼叫接納控制策略[J]. 電子與信息學(xué)報(bào), 2003, 25(2): 145-151.
Wang Yu, Li Shaoqian, Li Lemin, Gao Zhuo. Call admission control scheme in multi-service cdma cellular systems[J]. Journal of Electronics & Information Technology, 2003, 25(2): 145-151.
Citation: Wang Yu, Li Shaoqian, Li Lemin, Gao Zhuo. Call admission control scheme in multi-service cdma cellular systems[J]. Journal of Electronics & Information Technology, 2003, 25(2): 145-151.

多業(yè)務(wù)蜂窩CDMA系統(tǒng)中的呼叫接納控制策略

Call admission control scheme in multi-service cdma cellular systems

  • 摘要: 基于碼分多址(CDMA)技術(shù)的第三代(3G)移動(dòng)通信系統(tǒng)將支持多種業(yè)務(wù)傳輸,有效的呼叫接納控制策略將使系統(tǒng)在滿足各類(lèi)業(yè)務(wù)不同QoS要求的同時(shí),能夠?yàn)楦嗟挠脩籼峁┓?wù),該文首先分析了多業(yè)務(wù)蜂窩CDMA系統(tǒng)的剩余容量與QoS約束間的關(guān)系,接著提出了適用于任意多類(lèi)業(yè)務(wù)環(huán)境、基于信號(hào)干擾比(SIR)測(cè)量的兩種呼叫接納控制策略,局部策略與全局策略,并通過(guò)大量計(jì)算機(jī)仿真研究了兩種策略在業(yè)務(wù)均勻分布和非均勻分布環(huán)境下的性能,仿真結(jié)果表明,在兩種業(yè)務(wù)分布情況下,全局策略的性能部?jī)?yōu)于局部策略。
    Abstract: The 3G mobile communication systems based on CDMA technique are expected to provide multi-services to mobile users. An efficient call admission control scheme is essential to provide QoS guarantees of different services to as many users as possible. This paper analyzes the relation between the system residual capacity and QoS constraints for a multi-service CDMA cellular system. Then the SIR-measurement-based local and global call admission control schemes for multi-services are proposed. The performances of the two schemes under both uniform and non-uniform traffic distribution environments are studied through extensive simulations. The simulation results show that global scheme outperforms the local scheme under both environments.
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  • Z. Liu, M. E. Zarki, SIR-based call admission control for DS-CDMA cellular systems, IEEE Journal on Selected Area of Communications, 1994, 12(4), 638-644.[2]I.M. Kim, B. C. Shin, D. J. Lee, SIR-based call admission control by intercell interference prediction for DS-CDMA cellular systems, IEEE Commun. Letters, 2000, 4(1), 29-31.[3]N. Dimitriou.[J].G. Sfikas, R. Tafazoli, Call admission policies for UMTS, IEEE Proc. of VTC2000,Tokyo, Japan.2000,:-[4]C.Y. Huang.[J].R. D. Yates, Call admission in power controlled CDMA systems, IEEE Proc. of VTC96, Atlanta, U.S.A.1996,:-[5]J. Kuri.[J].P. Mermelstein, Call admission on the uplink of a CDMA system based on total received power, IEEE Proc. of ICC99, Vancouver, Canada.1999,:-[6]K. Kin, Y. Han, A call admission control scheme for multi-rate traffic based on total received power, IEICE Trans. on Commun., 2001, E84-B(3), 457-463.
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出版歷程
  • 收稿日期:  2001-08-14
  • 修回日期:  2002-04-28
  • 刊出日期:  2003-02-19

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