Avancerad sökning

Visar resultat 1 - 5 av 56 avhandlingar som matchar ovanstående sökkriterier.

1. 1. Bluetooth and Wireless Multihop Networks in Industrial Communication Systems

   Författare :Urban Bilstrup; Orazio Mirabella; Högskolan i Halmstad; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Bluetooth; industrial communication systems; short range devices; wireless multihop networks; wireless sensor networks; real-time communication; resource allocation; Computer engineering; Datorteknik; Datatransmission; Datatransmission;

   Sammanfattning : The objective of this thesis is to investigate the use of short-range wireless communication technology in industrial communication systems where there is a need for guaranteed timely delivery of correct information. Methods for achieving such capability are developed in the context of the physical layer, the data link layer and the application layer. LÄS MER

3. 2. Algorithms and Protocols Enhancing Mobility Support for Wireless Sensor Networks Based on Bluetooth and Zigbee

   Författare :Javier García Castaño; Ylva Bäcklund; Miguel Ángel Valero Duboy; Mälardalens högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Algorithm; Bluetooth; Mobility; Protocol; Wireless Sensor Network; Zigbee.; Electronics; Elektronik; Elektronik;

   Sammanfattning : Mobile communication systems are experiencing a huge growth. While traditional communication paradigms deal with fixed networks, mobility raises a new set of questions, techniques, and solutions. This work focuses on wireless sensor networks (WSNs) where each node is a mobile device. LÄS MER

4. 3. Technical Solutions for Internet-based Wireless Sensor Networks in e-Health Applications

   Författare :Jonas Wåhslén; Thomas Lind; Mats Björkman; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; e-Health; ambient assisted living; Internet of things; wireless body sensor networks; sports technology; Bluetooth; Wi-Fi; time synchronisation; sensor data fusion; mobile phone sensor communication; device-to-device communication; E-hälsa; Internet of things; trådlösa kroppsnära sensornät; idrottste- knologi; Bluetooth; Wi-Fi; tidssynkronisering; dynamisk mjukvaruuppdatering; Technology and Health; Teknik och hälsa;

   Sammanfattning : E-Health technology has developed rapidly in the last decade. Body-worn sen- sors have developed from an idea to a reality. Today, wireless sensors can perform functions from measuring heartbeats to advanced motion recognition. However, the integration of the various available solutions is still lacking. LÄS MER

5. 4. Synchronous and Concurrent Transmissions for Consensus in Low-Power Wireless

   Författare :Beshr Al Nahas; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Consesnsus; IoT; IIoT; Capture Effect; Distributed Computing; Wireless Networks; Sensing; TSCH; Bluetooth; Industrial Internet of Things; WSN; Concurrent Transmissions;

   Sammanfattning : With the emergence of the Internet of Things, autonomous vehicles and the Industry 4.0, the need for dependable yet adaptive network protocols is arising. Many of these applications build their operations on distributed consensus. For example, UAVs agree on maneuvers to execute, and industrial systems agree on set-points for actuators. LÄS MER

7. 5. Towards Predictable and Reliable Wireless Communication in Harsh Environments

   Författare :Martin Ekström; Maria Lindén; Dag Stranneby; Mälardalens högskola; []
   Nyckelord :Wireless; Reliable; predictable; Bluetooth; Zigbee; hardware development; measurements; elektronik; Electronics;

   Sammanfattning : Wireless communication in industrial, scientific and medical applications have several benefits. The main benefits when using wireless technologies include ease-of-deployment, the simplicity to introduce new units into the network and mobility. LÄS MER