Multiuser Detection for Turbo-Coded DS/CDMA

Name: Multiuser Detection for Turbo-Coded DS/CDMA
Brand: VDM Verlag
SKU: 9783639203028
Price: 61.04 EUR
Availability: InStock

Автор: Qinghua Li

Език:

Корици: С меки корици

Издател: VDM Verlag

Наличност: Налично при издателя, по поръчка

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61.04 € 119.38 лв

Multiuser detection (MUD) and turbo coding are two of the most powerful techniques for enhancing the...

Информация за книгата

Автор

Qinghua Li

Език

Английски език

Корици

Книга - С меки корици

Издадена

2009

страници

136

EAN

9783639203028

ISBN

363920302X

Enbook ID

06828298

Издател

VDM Verlag

Теглоt

209

Размери

152 x 229 x 8

Пълно описание

Multiuser detection (MUD) and turbo coding are two of the most powerful techniques for enhancing the direct spread code-division multiple-access systems (DS/CDMA). Since the optimal MUD of DS/CDMA uplink has prohibited complexities, efficient detectors are desirable. We investigate MUD for three types of DS/CDMA channels, from the simple to the complex. First, we provide a geometric view for MUD and a way for computing the optimal decision regions for synchronous uncoded DS/CDMA over known fading channels. It is shown that Verdu s algebraic notion of indecomposable error sequences relates directly to the geometric construction of the decision regions. The geometric interpretation results in two efficient detectors. Next, we address the joint channel estimation and MUD in asynchronous DS/CDMA over unknown fading channels. For low complexity, blind receivers are proposed based on the sequential expectation-maximization algorithm. Finally, we develop an iterative detector for turbo-coded CDMA over known fading channels, exploiting the power of both MUD and turbo coding.

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Multiuser Detection for Turbo-Coded DS/CDMA

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Пълно описание

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