Sökning: "wireless measurement"

Visar resultat 1 - 5 av 139 avhandlingar innehållade orden wireless measurement.

1. 1. Energy Constrained Wireless Sensor Networks : Communication Principles and Sensing Aspects

   Författare :Erik Björnemo; Anders Ahlén; Mikael Sternad; Erik Larsson; Uppsala universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; wireless sensor network; communication under processing cost; wireless channels; fading; probability theory as logic; uncertainty; measurement capacity; Signal processing; Signalbehandling;

   Sammanfattning : Wireless sensor networks are attractive largely because they need no wired infrastructure. But precisely this feature makes them energy constrained, and the consequences of this hard energy constraint are the overall topic of this thesis. LÄS MER

3. 2. Towards Green Wireless Access Networks : Main Tradeoffs, Deployment Strategies and Measurement Methodologies

   Författare :Sibel Tombaz; Jens Zander; Ki Won Sung; Ben Slimane; Peter Legg; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Energy efficiency; wireless access; green radio; SRA - ICT; SRA - Informations- och kommunikationsteknik;

   Sammanfattning : Wireless access networks today consume 0.5 percent of the global energy. Rapidly growing demand for capacity will further increase the energy consumption. Thus, improving energy efficiency has a great importance not only for environmental awareness but also to lower the operational cost of network operators. LÄS MER

4. 3. Wireless Multi-Sensor Feedback Systems for SportsPerformance Monitoring : Design and Development

   Författare :Dennis Sturm; Lars-Åke Brodin; Kjartan Halvorsen; Martin Eriksson; Kaj Lindecrantz; Richard Smith; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; kayak; paddle; mobile phone; sports performance; propulsive force; boat velocity; sampling frequency; wireless measurement; wireless sensor; Kayak XL System; sensor piconet; sensor platform; user-centred design;

   Sammanfattning : Wireless applications have become a common part of daily life. Whether it is mobile phones, the Wi-Fi router at home, the keycard which has replaced the car key, a radio frequency identification access system to a building or a Bluetooth headset for your computer or phone, the means of modern wireless data exchange is an omnipresent technology. LÄS MER

5. 4. Towards Radio-Environment Aware IoT Networks : Wireless Coexistence Methods for Low-complexity Devices

   Författare :Simone Grimaldi; Mikael Gidlund; Aamir Mahmood; Tingting Zhang; Georgios Z. Papadopoulos; Mittuniversitetet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; IoT; Industrial IoT; Interference; Machine Learning; Wireless Coexistence; Wireless Networks;

   Sammanfattning : Wireless technologies for short-range communication play a central role in the massive diffusion of the Internet of Things (IoT) paradigm. Such communication solutions rely extensively on the availability of unlicensed spectrum in the form of bands for industrial, scientific, and medical (ISM) applications. 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