Global ETD Search

1	Advanced algorithms for multi-antenna and multi-carrier communication systems Rong, Yue. Unknown Date (has links) Techn. University, Diss., 2005--Darmstadt.
2	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. Drahtloses vermaschtes Netz Routing Intelligente Antenne Phasengesteuerte Antennengruppe Adaptive Antenne Zugangsverfahren Wireless Mesh Networks Smart Antennas Routing Hybrid Wireless Mesh Protocol (HWMP) Directional MAC (DMAC) ddc:600 ddc:384 ddc:620 Drahtloses vermaschtes Netz Routing Intelligente Antenne Phasengesteuerte Antennengruppe Adaptive Antenne Zugangsverfahren
3	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 info:eu-repo/classification/ddc/600 ddc:600 info:eu-repo/classification/ddc/384 ddc:384 info:eu-repo/classification/ddc/620 ddc:620

1

Page generated in 0.0899 seconds