Sökning: "Wireless Local Area Networks"

Visar resultat 16 - 20 av 34 avhandlingar innehållade orden Wireless Local Area Networks.

1. 16. Coverage Analysis and Cooperative Hybrid Precoding for 5G Cellular Networks

   Författare :Chao Fang; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; millimeter wave; heterogeneous networks; 5G; beamforming;

   Sammanfattning : 5G innovations have been made in both the network deployment and the transceiver architectures in order to increase coverage, energy- and spectrum-efficiency. Future base stations (BSs) are expected to be densely deployed in places such as walls and lamp posts and cover a smaller area compared to current macro BS systems. LÄS MER

3. 17. Cooperative Context-Aware Setup and Performance of Surveillance Missions Using Static and Mobile Wireless Sensor Networks

   Författare :Edison Pignaton de Freitas; Tony Larsson; Carlos Eduardo Pereira; Franz Josef Rammig; Högskolan i Halmstad; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Surveillance systems; Wireless sensor network; Cooperative sensors; Mobile sensors; Biologically-inspired networking; Context awareness;

   Sammanfattning : Surveillance systems are usually employed to monitor wide areas in which their usersaim to detect and/or observe events or phenomena of their interest. The use ofwireless sensor networks in such systems is of particular interest as these networks can provide a relative low cost and robust solution to cover large areas. LÄS MER

4. 18. Cross-Layer Optimization of Voice over IP in Wireless Mesh Networks

   Författare :Peter Dely; Andreas Kassler; Dirk Staehle; Karlstads universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Datavetenskap; Computer Science;

   Sammanfattning : Wireless Mesh Networks (WMNs) have emerged as a promising network technology, which combines the benefits of cellular networks and Wireless Local Area Networks (WLANs). In a WMN mesh routers wirelessly relay traffic on behalf of other mesh routers or clients and thereby provide coverage areas comparable to cellular networks, while having the low complexity and low costs of WLANs. LÄS MER

5. 19. On three issues in wireless networking

   Författare :Anders Lindgren; Luleå tekniska universitet; []
   Nyckelord :;

   Sammanfattning : In this thesis, three issues in wireless and mobile networks are considered. The first issue is the enabling of real-time traffic in wireless local area networks (WLANs). Real-time services such as streaming voice and video require a certain quality of service (QoS) such as low packet loss and low delay to perform well. LÄS MER

7. 20. On the Design and Deployment of Low-cost Wireless Infrastructure

   Författare :Matthias Unbehaun; KTH; []
   Nyckelord :;

   Sammanfattning : In this thesis, we investigate different methods forreducing the infrastructure deployment costs of wirelessnetworks that should transmit very high data rates.Today,wireless local area networks (WLANs) are usuallyconsidered as the typical paradigm for a low-cost,high datarate wireless communication system. LÄS MER