Code and Frequency Synchronization for DS-CDMA Systems

Name: Code and Frequency Synchronization for DS-CDMA Systems
Brand: VDM Verlag
SKU: 9783639101386
Price: 59.81 EUR
Availability: InStock

Автор: Khaled Amleh

Език:

Корици: С меки корици

Издател: VDM Verlag

Наличност: Външен склад

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Joint estimation of code timing and carrier §frequency offset for (DS) direct sequence CDMA §systems...

Информация за книгата

Автор

Khaled Amleh

Език

Английски език

Корици

Книга - С меки корици

Издадена

2008

страници

148

EAN

9783639101386

ISBN

3639101383

Enbook ID

06819136

Издател

VDM Verlag

Теглоt

209

Размери

152 x 229 x 8

Пълно описание

Joint estimation of code timing and carrier §frequency offset for (DS) direct sequence CDMA §systems is investigated. The goal is to provide an §algebraic solution to the joint estimation problem, §in a near-far time-varying frequency-selective §fading channel. §First, the multiuser estimation is decoupled into a §series of single-user estimation problems; then, §analytical tools of polynomial matrices are invoked §for joint carrier and code timing estimation of the §desired user. The performance of the proposed study §is examined analytically, where expressions for the §variance of propagation delay and frequency offset §estimation errors are derived.§§A subspace code-timing estimator for CDMA systems §that utilize bandlimited chip waveforms is also §presented. The proposed estimator relies on §converting the received signal to the frequency §domain, then, the code-timing estimates are obtained §by exploiting the unique structure of the spectra of §the spreading waveform. The proposed method can be §implemented both blindly and in a training-assisted§fashion.

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Code and Frequency Synchronization for DS-CDMA Systems

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