Multi-Carrier Spread-Spectrum

Name: Multi-Carrier Spread-Spectrum
Brand: Springer-Verlag New York Inc.
SKU: 9781461378587
Price: 50.13 EUR
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Autor: Khaled Fazel, Gerhard P. Fettweis

Jazyk:

Väzba: Brožovaná

Vydavateľ: Springer-Verlag New York Inc.

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l 1 Khaled Fazel , Gerhard P. Fettweis lGerman Aerospace Research Establishment (DLR) Institute for...

Informácie o knihe

Autor

Khaled Fazel, Gerhard P. Fettweis

Jazyk

Angličtina

Väzba

Kniha - Brožovaná

Vydalo

2012

Stránok

242

EAN

9781461378587

ISBN

9781461378587

Enbook ID

06617821

Vydavateľ

Springer-Verlag New York Inc.

Hmotnosť

428

Rozmery

160 x 240 x 15

Kompletný popis

l 1 Khaled Fazel , Gerhard P. Fettweis lGerman Aerospace Research Establishment (DLR) Institute for Communications Technology 0-82234 Oberpfaffenhofen, Germany lDresden University of Technology Department of Electrical Engineering 0-01062 Dresden, Germany To operate future generation multimedia communications systems high data rate transmission needs to be guaranteed with a high quality of service. For instance, the third generation cellular mobile systems should offer a high data rate up to 2 Mbitls for video, audio, speech and data transmission [1]. In addition, the important challenge for these cellular systems will be the choice of an appropriate multiple access scheme. These trends motivated many researchers to look for multiple access systems that offer high spectral efficiency. The technique of spread spectrum originating from the military applications may allow partly to fulfill the above requirements. Advantages of spread spectrum technique are broadly known: High immunity against multipath distortion, no need for frequency planning, high flexibility, easier variable rate transmission etc. [1-2]. A multiple access scheme based on direct sequence spread spectrum, known as direct sequence code division multiple access (DS-CDMA) relies on spreading the data stream using an assigned spreading code for each user in the time domain. The capability of minimising multiple access interference (MAl) is given by the cross correlation properties of spreading codes. In the case of multipath propagation the capability of distinguishing one component from others in the composite received signal is offered by the auto-correlation properties of the spreading codes [2].

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Multi-Carrier Spread-Spectrum

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