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Performance Analysis of IPDL Methods Using High Resolution Channel Estimation Technique for W-CDMA systems  

Park, Un-Yong (Dept. of Infocom. SoonSil University)
Choe, Ju-Pyeong (Dept. of Infocom. SoonSil University)
Lee, Won-Cheol (Dept. of Infocom. SoonSil University)
Publication Information
Journal of the Institute of Electronics Engineers of Korea TC / v.39, no.6, 2002 , pp. 268-276 More about this Journal
Abstract
This paper introduces the high-resolution channel estimation technique which are used to estimate the first arrival multipath delay component. The proposed technique yields the precise estimate of the first time arrival which is directly related to the performance of TDOA-based position location. The proposed technique utilizes the transformed auto-correlation function of received common pilot signal in frequency domain, its samples compose the hermitian Toeplitz matrix at sequel. Then the time delay components could be estimated with precision by the analysis of eigen-structure of corresponding matrix. In this paper, obeying the modified CODIT model, the performance of the PR-IPDL(Pseudo Random-Idle Period Downlink) and TA-IPDL(Time Aligned-Idle Period Downlink considered as 3GPP position location technique will be exploited systematically through the computer simulations with applying the proposed technique.
Keywords
IPDL; TDOA; CODIT; channel estimation.;
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