Time-delay estimation in multiple-input single-output systems
Author
Koçak, Fatih
Gezici, Sinan
Date
2010Source Title
IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC
Publisher
IEEE
Pages
200 - 205
Language
English
Type
Conference PaperItem Usage Stats
128
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73
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Abstract
In this paper, the time-delay estimation problem is studied for multiple-input single-output (MISO) systems. First, a theoretical analysis is carried out by deriving the Cramer-Rao lower bound (CRLB) for time-delay estimation in a MISO system. Then, the maximum likelihood (ML) estimator for the time-delay parameter is obtained, which results in a complex optimization problem in general. In order to provide a solution of the ML estimator with low computational complexity, ML estimation based on a genetic global optimization algorithm, namely, differential evolution (DE), is proposed. Simulation studies for various fading scenarios are performed to investigate the performance of the proposed algorithm. ©2010 IEEE.
Keywords
Cramer-Rao lower bound (CRLB)Differential evolution (DE)
Maximum likelihood (ML) estimator
Multiple-input single-output (MISO)
Time-delay estimation
Cramer-rao lower bound
Differential evolution
Maximum likelihood (ML) estimator
Multiple input single outputs
Time delay estimation
Biology
Computational complexity
Cramer-Rao bounds
Estimation
Evolutionary algorithms
Fading (radio)
Global optimization
Maximum likelihood estimation
Optimization
Radio communication
Time delay
Permalink
http://hdl.handle.net/11693/28465Published Version (Please cite this version)
http://dx.doi.org/10.1109/PIMRC.2010.5671587Collections
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