Proceedings of the IEEK Conference (대한전자공학회:학술대회논문집)
- 2000.06a
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- Pages.209-212
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- 2000
Effect of Imperfect Power Control on Performance of a PN Code Tracking Loop for a DS/CDMA System
Abstract
In this paper, effect of imperfect power control on performance of a pseudonoise (PN) code tracking loop is analyzed and simulated for a direct-sequence/code-division multiple access (DS/CDMA) system. The multipath fading channel is modeled as a two-ray Rayleigh fading model. Power control error is modeled as a log-normally distributed random variable. The tracking performance of DLL (delay-locked-loop) is evaluated in terms of tracking jitter and mean-time-to-lose-lock (MTLL). From the simulation results, it is shown that the PN tracking performance is very sensitive to the power control error.
Keywords