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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Adaptive antennas for mobile radio systems using time division CDMA and joint detection

Papathanassiou, Apostolos. Unknown Date (has links)
University, Diss., 2000--Kaiserslautern.
2

Ein Empfangssystem für den Satellitenrundfunk mit Adaption der Richtcharakteristik und der Polarisation /

Fischer, Georg. January 1997 (has links)
Zugl.: Paderborn, Universiẗat-Gesamthochsch., Diss., 1997.
3

Contributions to the application of adaptive antennas and CDMA code pooling in the TD-CDMA downlink

Lu, Yang. Unknown Date (has links) (PDF)
University, Diss., 2002--Kaiserslautern.
4

Utilization of correlation matrices in adaptive array processors for time slotted CDMA uplinks

Weckerle, Martin. January 2002 (has links) (PDF)
University, Diss., 2002--Kaiserslautern.
5

Anwendung von mehreren Empfangsantennen in drahtlosen Kommunikationssystemen

Nold, Michael Laurentius. January 2002 (has links)
Ulm, Univ., Diss., 2002.
6

Compact antenna arrays in mobile communications a quantitative analysis of radiator coupling

Volmer, Christian January 2009 (has links)
Zugl.: Ilmenau, Techn. Univ., Diss., 2009
7

Charakterisierung und stochastische Modellierung des Raum-Zeit-Mobilfunkkanals

Lohse, Nadja January 2007 (has links)
Zugl.: Dresden, Techn. Univ., Diss., 2007
8

Charakterisierung und stochastische Modellierung des Raum-Zeit-Mobilfunkkanals /

Lohse, Nadja. January 2008 (has links)
Techn. Universiẗat, Diss.--Dresden, 2007.
9

Layer 2 Path Selection Protocol for Wireless Mesh Networks with Smart Antennas

Porsch, Marco 16 September 2011 (has links) (PDF)
In this thesis the possibilities of smart antenna systems in wireless mesh networks are examined. With respect to the individual smart antenna tradeoffs, a routing protocol (Modified HWMP, MHWMP) for IEEE 802.11s mesh networks is presented, that exploits the full range of benefits provided by smart antennas: MHWMP actively switches between the PHY-layer transmission/reception modes (multiplexing, beamforming and diversity) according to the wireless channel conditions. Spatial multiplexing and beamforming are used for unicast data transmissions, while antenna diversity is employed for efficient broadcasts. To adapt to the directional channel environment and to take full benefit of the PHY capabilities, a respective MAC scheme is employed. The presented protocol is tested in extensive simulation and the results are examined.
10

Layer 2 Path Selection Protocol for Wireless Mesh Networks with Smart Antennas

Porsch, Marco 12 April 2011 (has links)
In this thesis the possibilities of smart antenna systems in wireless mesh networks are examined. With respect to the individual smart antenna tradeoffs, a routing protocol (Modified HWMP, MHWMP) for IEEE 802.11s mesh networks is presented, that exploits the full range of benefits provided by smart antennas: MHWMP actively switches between the PHY-layer transmission/reception modes (multiplexing, beamforming and diversity) according to the wireless channel conditions. Spatial multiplexing and beamforming are used for unicast data transmissions, while antenna diversity is employed for efficient broadcasts. To adapt to the directional channel environment and to take full benefit of the PHY capabilities, a respective MAC scheme is employed. The presented protocol is tested in extensive simulation and the results are examined.:1 Introduction 2 Wireless Mesh Networks 3 IEEE 802.11s 4 Smart Antenna Concepts 5 State of the Art: Wireless Mesh Networks with Smart Antennas 6 New Concepts 7 System Model 8 Results and Discussion 9 Conclusion and Future Work

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