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Transactions: WSEAS TRANSACTIONS ON SYSTEMS
Transactions ID Number: 31-745
Full Name: Uche Okonkwo
Position: Ph.D. Candidate
Age: ON
Sex: Male
Address: Wireless Communication Center (WCC), Faculty of Electrical Engineering,Universiti Teknologi Malaysia, 81310 UTM Skudai, Johor
Country: MALAYSIA
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E-mail address: crucifixzo@yahoo.co.uk
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Title of the Paper: Affine Group Linear Operator-based Channel Characterization for Mobile Radio Systems
Authors as they appear in the Paper: Uche Okonkwo, Razali Ngah, Tharek Rahman
Email addresses of all the authors: crucifixzo@yahoo.co.uk, razalin@fke.utm.my, and tharek@fke.utm.my
Number of paper pages: 14
Abstract: Mobile radio channel characterization using linear operators of affine group is presented. The foundation of this approach is primarily based on the natural extension of basic concepts of time-scale representations of wavelet-type to the analysis and representation the nonstationarity associated with the real-time mobile radio channel. We provide an operator-based characterization initiated by the need to present an intuitive and physical approach towards describing and representing the various effects of the channel. The concepts of delay-scale spreading function and operator as well as delay-scale scattering function and operator is introduced. We established the relationship between the continuous wavelet transform and these functions/operators by employing the powerful tool of group theory. We also derived canonical expression for the corresponding channel by discretizing the channel using frame concept. The practical relevance of our approach is illustrated vi!
a deterministic examples and the associated simulations.
Keywords: Channel characterization, Mobile radio channel, Nonstationary channel, Time-frequency operator, Time-scale operator, Fourier kernel, Wavelet ransform
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