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Wavelet Radio by Homayoun Nikookar

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4 Synchronization issues of wavelet radio

4.1 Introduction

Multi-carrier modulation (MCM) techniques have gained precedence over other methods in the last decade. This is largely stimulated by the demands of higher bandwidth, increased use of wireless systems in time-dispersive environments (e.g., home, office, etc.) and lower costs of digital signal processing components; a requirement sufficiently catered to by MCM systems. It is a spectral efficient modulation scheme that divides the incoming high rate data among multiple carriers modulated at lower rates. By simultaneously transmitting N data symbols into N carriers the symbol rate is reduced to the one Nth of the original symbol rate, and the symbol duration is increased N-fold. This leads ...

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