Optimum timing estimation without channel information over frequency-selective slowly fading channels
Resource
Wireless Personal Multimedia Communications, 2002. The 5th International Symposium on
Journal
Wireless Personal Multimedia Communications, 2002. The 5th International Symposium on
Pages
-
Date Issued
2002-10
Date
2002-10
Author(s)
Chang, Cha'o-Ming
DOI
1347-6890
Abstract
Applying the composite hypothesis testing procedure, we introduce the maximum a posteriori probability symbol synchronization in the point-to-point communications systems without channel information over frequency-selective slowly fading channels. This proposed estimation does not ignore the presence of interference due to frequency-selective channels and efficiently utilizes the inherited frequency-diversity to combat the channel fading impairment. By mathematical analysis, we prove the fundamental condition to have a consistent symbol synchronizer over frequency-selective slowly fading channels when the channel impulse response is unknown. We further conduct simulations to justify its performance considering the practical implementation with a finite number of timing candidates. This proposed approach considers more generalized scenarios with feasible complexity and therefore could be extensively applied in many practical communications systems.
Type
journal article
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