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Cooperative WLAN Protocols for Multimedia Communication - Azadeh Ettefagh
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Azadeh Ettefagh:
Cooperative WLAN Protocols for Multimedia Communication - neues Buch

ISBN: 3832527745

Copertina flessibile, [EAN: 9783832527747], Logos Verlag Berlin, Logos Verlag Berlin, Libro, [PU: Logos Verlag Berlin], Logos Verlag Berlin, The IEEE 802.11n specifies MIMO techniques to enhance data rate in WLANs. However, it can support only MIMO point-to-point links. On the other hand, it is known that multiuser MIMO techniques can significantly increase the spectral efficiency of networks. In this thesis, to realise MIMO spatial multiplexing gain in networks with single-antenna stations and to enhance network performance, cooperative protocols are considered with respect to both PHY and MAC layers. In order to utilise cooperative signalling in WLANs, the MAC protocol has to be modified. The existing CSMA/CA-based MAC avoids any interference and supports only point-to-point links. To enhance IEEE 802.11n system in a way that multiple users can transmit simultaneously, a novel cluster-based CSMA/CA has been proposed in this work. Our study has shown that the CB-CSMA/CA can significantly improve throughput and reduce delay in different types of infrastructure or ad hoc networks with single-hop or two-hop links. Furthermore, we have shown that throughput of CB-CSMA/CA can further be improved by taking cross-layer parameters into account, when forming the clusters or defining the backoff models., 411664031, Categorie, 508758031, Arte, cinema e fotografia, 508779031, Azione e avventura, 508714031, Biografie, diari e memorie, 508791031, Calendari e agende, 508785031, Diritto, 508864031, Dizionari e opere di consultazione, 508786031, Economia, affari e finanza, 508792031, Famiglia, salute e benessere, 1345828031, Fantascienza, Horror e Fantasy, 508784031, Fumetti e manga, 508771031, Gialli e Thriller, 1346712031, Guide di revisione e aiuto allo studio, 508820031, Humour, 508733031, Informatica, Web e Digital Media, 508770031, Letteratura e narrativa, 508778031, Letteratura erotica, 508715031, Libri per bambini e ragazzi, 508888031, Libri scolastici, 508857031, Lingua, linguistica e scrittura, 508780031, Narrativa storica, 508811031, Politica, 508745031, Religione, 508775031, Romanzi rosa, 508867031, Scienze, tecnologia e medicina, 508794031, Self-help, 508879031, Società e scienze sociali, 508835031, Sport, 508796031, Storia, 508821031, Tempo libero, 508753031, Viaggi, 411663031, Libri

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Cooperative WLAN Protocols for Multimedia Communication - Azadeh Ettefagh
Vergriffenes Buch, derzeit bei uns nicht verfügbar.
(*)
Azadeh Ettefagh:
Cooperative WLAN Protocols for Multimedia Communication - neues Buch

ISBN: 3832527745

Copertina flessibile, [EAN: 9783832527747], Logos Verlag Berlin, Logos Verlag Berlin, Libro, [PU: Logos Verlag Berlin], Logos Verlag Berlin, The IEEE 802.11n specifies MIMO techniques to enhance data rate in WLANs. However, it can support only MIMO point-to-point links. On the other hand, it is known that multiuser MIMO techniques can significantly increase the spectral efficiency of networks. In this thesis, to realise MIMO spatial multiplexing gain in networks with single-antenna stations and to enhance network performance, cooperative protocols are considered with respect to both PHY and MAC layers. In order to utilise cooperative signalling in WLANs, the MAC protocol has to be modified. The existing CSMA/CA-based MAC avoids any interference and supports only point-to-point links. To enhance IEEE 802.11n system in a way that multiple users can transmit simultaneously, a novel cluster-based CSMA/CA has been proposed in this work. Our study has shown that the CB-CSMA/CA can significantly improve throughput and reduce delay in different types of infrastructure or ad hoc networks with single-hop or two-hop links. Furthermore, we have shown that throughput of CB-CSMA/CA can further be improved by taking cross-layer parameters into account, when forming the clusters or defining the backoff models., 411664031, Categorie, 508758031, Arte, cinema e fotografia, 508779031, Azione e avventura, 508714031, Biografie, diari e memorie, 508791031, Calendari e agende, 508785031, Diritto, 508864031, Dizionari e opere di consultazione, 508786031, Economia, affari e finanza, 508792031, Famiglia, salute e benessere, 1345828031, Fantascienza, Horror e Fantasy, 508784031, Fumetti e manga, 508771031, Gialli e Thriller, 1346712031, Guide di revisione e aiuto allo studio, 508820031, Humour, 508733031, Informatica, Web e Digital Media, 508770031, Letteratura e narrativa, 508778031, Letteratura erotica, 508715031, Libri per bambini e ragazzi, 508888031, Libri scolastici, 508857031, Lingua, linguistica e scrittura, 508780031, Narrativa storica, 508811031, Politica, 508745031, Religione, 508775031, Romanzi rosa, 508867031, Scienze, tecnologia e medicina, 508879031, Società e scienze sociali, 508835031, Sport, 508796031, Storia, 508821031, Tempo libero, 508753031, Viaggi, 411663031, Libri

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Cooperative WLAN Protocols for Multimedia Communication - Azadeh Ettefagh
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Azadeh Ettefagh:
Cooperative WLAN Protocols for Multimedia Communication - gebrauchtes Buch

2011, ISBN: 3832527745

ID: 4424121421

[EAN: 9783832527747], [PU: Logos Verlag Berlin 2011-02-15], WLAN MEDIUM ACCESS CONTROL PROTOCOLS COOPERATIVE RELAYING MULTIUSER TRANSMISSIONS, The IEEE 802.11n specifies MIMO techniques to enhance data rate in WLANs. However, it can support only MIMO point-to-point links. On the other hand, it is known that multiuser MIMO techniques can significantly increase the spectral efficiency of networks. In this thesis, to realise MIMO spatial multiplexing gain in networks with single-antenna stations and to enhance network performance, cooperative protocols are considered with respect to both PHY and MAC layers.In order to utilise cooperative signalling in WLANs, the MAC protocol has to be modified. The existing CSMA/CA-based MAC avoids any interference and supports only point-to-point links. To enhance IEEE 802.11n system in a way that multiple users can transmit simultaneously, a novel cluster-based CSMA/CA has been proposed in this work. Our study has shown that the CB-CSMA/CA can significantly improve throughput and reduce delay in different types of infrastructure or ad hoc networks with single-hop or two-hop links. Furthermore, we have shown that throughput of CB-CSMA/CA can further be improved by taking cross-layer parameters into account, when forming the clusters or defining the backoff models.

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Cooperative WLAN Protocols for Multimedia Communication - Azadeh Ettefagh
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Azadeh Ettefagh:
Cooperative WLAN Protocols for Multimedia Communication - Taschenbuch

2011, ISBN: 9783832527747

ID: 18465675

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Details zum Buch
Cooperative WLAN Protocols for Multimedia Communication

The IEEE 802.11n specifies MIMO techniques to enhance data rate in WLANs. However, it can support only MIMO point-to-point links. On the other hand, it is known that multiuser MIMO techniques can significantly increase the spectral efficiency of networks. In this thesis, to realise MIMO spatial multiplexing gain in networks with single-antenna stations and to enhance network performance, cooperative protocols are considered with respect to both PHY and MAC layers. In order to utilise cooperative signalling in WLANs, the MAC protocol has to be modified. The existing CSMA/CA-based MAC avoids any interference and supports only point-to-point links. To enhance IEEE 802.11n system in a way that multiple users can transmit simultaneously, a novel cluster-based CSMA/CA has been proposed in this work. Our study has shown that the CB-CSMA/CA can significantly improve throughput and reduce delay in different types of infrastructure or ad hoc networks with single-hop or two-hop links. Furthermore, we have shown that throughput of CB-CSMA/CA can further be improved by taking cross-layer parameters into account, when forming the clusters or defining the backoff models.

Detailangaben zum Buch - Cooperative WLAN Protocols for Multimedia Communication


EAN (ISBN-13): 9783832527747
ISBN (ISBN-10): 3832527745
Taschenbuch
Erscheinungsjahr: 2011
Herausgeber: Logos Verlag Berlin

Buch in der Datenbank seit 11.02.2013 11:29:56
Buch zuletzt gefunden am 04.01.2017 11:22:00
ISBN/EAN: 9783832527747

ISBN - alternative Schreibweisen:
3-8325-2774-5, 978-3-8325-2774-7


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