Design and Performance Analysis of a Noncoherent Code Tracking Loop for 3GPP MODEM 


Vol. 28,  No. 12, pp. 983-990, Dec.  2003


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  Abstract

In this paper, a noncoherent code tracking loop is designed for 3GPP MODEM and its performance is analyzed in terms of steady-state jitter variance and transient response characteristics. An analytical closed-form formula for steady-state jitter variance is first derived for AWGN environments as a general function of a pulse-shaping filter, timing offset, signal-to-interference ratio, and loop bandwidth, together with the analysis on the transient response characteristic of a tracking loop. Based on the analysis, the code tracking loop with variable loop bandwidth that is efficient for full digital H/W implementation is designed and its performance is compared with that of the code tracking loop with fixed loop bandwidth, along with the verification by computer simulations.

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  Cite this article

[IEEE Style]

Y. Yang and H. Park, "Design and Performance Analysis of a Noncoherent Code Tracking Loop for 3GPP MODEM," The Journal of Korean Institute of Communications and Information Sciences, vol. 28, no. 12, pp. 983-990, 2003. DOI: .

[ACM Style]

Yeon-Sil Yang and Hyung-Rae Park. 2003. Design and Performance Analysis of a Noncoherent Code Tracking Loop for 3GPP MODEM. The Journal of Korean Institute of Communications and Information Sciences, 28, 12, (2003), 983-990. DOI: .

[KICS Style]

Yeon-Sil Yang and Hyung-Rae Park, "Design and Performance Analysis of a Noncoherent Code Tracking Loop for 3GPP MODEM," The Journal of Korean Institute of Communications and Information Sciences, vol. 28, no. 12, pp. 983-990, 12. 2003.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880