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CDMA系統(tǒng)中切換性能的界限和變動范圍

張鐸,  衛(wèi)國,  朱近康

張鐸, 衛(wèi)國, 朱近康. CDMA系統(tǒng)中切換性能的界限和變動范圍[J]. 電子與信息學報, 2003, 25(4): 479-485.
引用本文: 張鐸, 衛(wèi)國, 朱近康. CDMA系統(tǒng)中切換性能的界限和變動范圍[J]. 電子與信息學報, 2003, 25(4): 479-485.
Zhang Duo, Wei Guo, Zhu Jinkang. Bounds and ranges of handover performance in cdma[J]. Journal of Electronics & Information Technology, 2003, 25(4): 479-485.
Citation: Zhang Duo, Wei Guo, Zhu Jinkang. Bounds and ranges of handover performance in cdma[J]. Journal of Electronics & Information Technology, 2003, 25(4): 479-485.

CDMA系統(tǒng)中切換性能的界限和變動范圍

Bounds and ranges of handover performance in cdma

  • 摘要: 該文提出了CDMA系統(tǒng)中切換性能的3個界限的數學表達式,以及建立在界限基礎上的硬切換性能差異、軟切換性能差異和軟切換增益的變動范圍的表達式,并通過這些公式對切換的性能空間做了劃分和限定。作為上述分析的數學基礎,該文推導了硬切換和軟切換中斷概率的表達式。最后,通過對WCDMA(FDD)系統(tǒng)的仿真,證明了切換的界限、變動范圍和中斷概率的公式的正確性,并且指出,使用它們刻劃實際切換算法的性能將比Viterbi的估計更為準確和恰當。
    Abstract: This paper presents the expressions of three bounds and three ranges on handover performance in CDMA system, and divides the space of handover performance into several parts according to the six expressions. In order to form the basis of the above expressions, this paper then proposes the methods to deduce the outage probability of hard and soft handovers. By simulating the WCDMA(FDD) system, the expressions are proved to be right and it is also concluded that they are more accurate and appropriate to describe the handover performance in a real CDMA system than Viterbis.
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  • X. Yang, S. Ghaheri-Niri, R. Tafazolli, Performance of power-triggered and Et/No-triggered soft handover algorithms for UTRA, Second International Conference on 3G Mobile Communication Technologies(Conf. Publ. No.477), London, UK, 2001, 7-10.[2]ETSI/TR 101 112 V3.2.0(1998-04), Selection procedures for the choice of radio transmission technologies of the CDMA, CDMA 30.03 version 3.2.0.[3]N. Binucci, et al., Soft handover gain in WCDMA, Vehicular Technology Conference, 2000,Boston, USA, IEEE-VTS Fall VTC 2000, 52nd, Vol3, 2000, 1467-1472.[4]3GPP, 2000, Technical Specification Group Radio Access Network, Physical channels and mapping of transport channels onto physical channels(FDD), 3G TS 25.211 v3.3.0.3GPP, 2000, Technical Specification Group Radio Access Network, RRC Protocol Specification,3G TS 25.331 v3.3.0.[5]A.J. Viterbi, et al., Other-cell interference in cellular power-controlled CDMA, IEEE Trans. on Commun., 1994, 42(2/3/4), 1501-1504.[6]A.J. Viterbi, et al., Soft handoff extends CDMA cell coverage and increases reverse link capacity,IEEE J. on Select. Areas Commun., 1994, 12(8), 1281-1287.
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出版歷程
  • 收稿日期:  2001-10-26
  • 修回日期:  2002-07-17
  • 刊出日期:  2003-04-19

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