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A Blind Frequency Domain Method for DS-CDMA Synchronization
using Antenna Arrays
Andreas Jakobsson
,
Systems and Control, Uppsala university,
A. Lee Swindlehurst
,
Brigham Young University, Provo, Utaha,
David Astély
,
Signal Processing, KTH, Stockholm and
Claes Tidestav
,
Signals and Systems, Uppsala university.
32nd Asilomar Conference on Signals, Systems and Computers,
November, 1998.
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Abstract:
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A blind frequency domain method for estimating the
propagation delay of DS-CDMA signals is presented.
The algorithm is formulated using an antenna array,
and it uses the fact that the spatially and temporally correlated
additive noise, consisting of both interfering user and thermal noise,
will be asymptotically uncorrelated on the FFT frequency grid.
The algorithm is computationally simple, and can be efficiently implemented
using the FFT algorithm. Simulations illustrate that near-far
resistance can be achieved using spatial diversity.
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Source:
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Pdf, 79K.
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