Sökning: "Wi-Fi"
Visar resultat 1 - 5 av 12 avhandlingar innehållade ordet Wi-Fi.
1. Technical Solutions for Internet-based Wireless Sensor Networks in e-Health Applications
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
2. Vector Measurements for Wireless Network Devices
Sammanfattning : Wireless networks are an iconic technology of today’s modern era, theyare present in our daily activities as can be exemplified by cellular communications,wi-fi, bluetooth, and others. Vector measurements play an importantrole in the design, simulation, and testing of wireless networks and are usedto characterize key devices operating in the radio interface, such as amplifiers,filters, and mixers. LÄS MER
3. Computer Vision without Vision : Methods and Applications of Radio and Audio Based SLAM
Sammanfattning : The central problem of this thesis is estimating receiver-sender node positions from measured receiver-sender distances or equivalent measurements. This problem arises in many applications such as microphone array calibration, radio antenna array calibration, mapping and positioning using ultra-wideband and mapping and positioning using round-trip-time measurements between mobile phones and Wi-Fi-units. LÄS MER
4. Efficient and systematic network resource management
Sammanfattning : The demand for network resources (e.g. forwarding capacity, buffer space) by increasingly used real-time multimedia applications is growing. Moreover, their stringent performance requirements (e. LÄS MER
5. Performance Analysis in Wireless HetNets: Traffic, Energy, and Secrecy Considerations
Sammanfattning : To this day, most of the communication networks are characterized by a "monolithic" operating approach. Network elements are configured and operate without any reconfiguration for long time periods. Softwarization, whereby dedicated elements are being replaced by more general-purpose devices, has been lately challenging this existing approach. LÄS MER