Design of an enhanced SIR measurement algorithm for WCDMA mobile station Modem 


Vol. 30,  No. 2, pp. 51-60, Feb.  2005


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  Abstract

In this paper, we propose an enhanced SIR measurement algorithm for WCDMA mobile station modem. The proposed algorithm minimizes processing delay by applying velocity estimation-based channel estimator with IIR filter and reduces measured SIR offset by compensating attenuated signal power by using pilot channel(CPICH) in fading channel environment. To improve stability of SIR measurement, we also adopt an IIR filter which can properly reflect variation of fading channel in signal and interference power measurement. We prove that the proposed algorithm outperforms conventional SIR measurement algorithm in mean and jitter of measured SIR. Computer simulation shows that performance results using the proposed algorithm have improvement of approximately 8dB for measured mean and 2dB for measured jitter in the wireless mobile channel, especially in fast mobile speed environment.

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  Cite this article

[IEEE Style]

J. Han, J. Doo, H. Choi, "Design of an enhanced SIR measurement algorithm for WCDMA mobile station Modem," The Journal of Korean Institute of Communications and Information Sciences, vol. 30, no. 2, pp. 51-60, 2005. DOI: .

[ACM Style]

Jung-Su Han, Joo-Hyun Doo, and Hyung-Jin Choi. 2005. Design of an enhanced SIR measurement algorithm for WCDMA mobile station Modem. The Journal of Korean Institute of Communications and Information Sciences, 30, 2, (2005), 51-60. DOI: .

[KICS Style]

Jung-Su Han, Joo-Hyun Doo, Hyung-Jin Choi, "Design of an enhanced SIR measurement algorithm for WCDMA mobile station Modem," The Journal of Korean Institute of Communications and Information Sciences, vol. 30, no. 2, pp. 51-60, 2. 2005.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880