Search results for "Langaton"
showing 10 items of 89 documents
Handover performance in IEEE 802.16 mobile networks
2009
PHY and MAC layer performance optimization of the IEEE 802.16 system
2012
Average Age of Information in Wireless Powered Mobile Edge Computing System
2022
Mobile edge computing (MEC) has been recognized as a promising technique to provide enhanced computation services for low-power wireless devices at the network edge. How to evaluate the timeliness of the task and data delivery is critical for the development of MEC applications. Considering a wireless powered MEC system, in this letter we study the average age of information (AoI), which is a crucial performance metric to measure the freshness of information. Specifically, in the considered system, a sensor node harvests energy from an energy transmitter and transmits computation tasks to the MEC server. The charging time of the sensor node’s capacitor, the waiting time and service time at …
Studies on high speed uplink packet access performance enhancements
2014
PSoC langattoman anturiverkon mikro-ohjaimena
2013
Tämä tutkielma selvittää Cypress Semiconductorin PSoC-mikro-ohjaimen soveltuvuutta käytettäväksi langattomissa anturiverkoissa, ja sitä millaisia etuja tällä voidaan saavuttaa muihin mikro-ohjaimiin verrattuna. Uuden anturinoodin toteutus ja näistä kootun verkon toiminta esitellään kattavasti. Verrattaessa toteutettua noodia muihin moderneihin, vuosina 2006...2012 julkaistuihin, laitealustoihin havaitaan, että PSoC on varteenotettava vaihtoehto anturiverkkoihin. Lisäksi käsitellään PSoC:n käyttöä normaalisti ulkoisia komponentteja käyttävissä mittausjärjestelmissä. Tuloksena on, että tietyissä tilanteissa ja sovelluksissa PSoC:ta käyttävä järjestelmä voi olla muita energiatehokkaampi, sillä…
Analysis and performance of FBMC techniques with application to relay networks
2014
The Quantified Athlete: Associations of Wearables for High School Athletes
2018
The adoption of wearable technology in competitive sports can be an advantage to performance and training. Athletes who use personalised data to quantify their performances with the possibilities of sharing with others may use wearables to reinforce the athletic identity. Despite these changes, few studies have actually examined the associations between wearables and developing athletes in their quest for professional sports. Student athletes (n = 437, age = 17y) still in high schools completed a web-based survey about their professional aspirations, athletic identity, and the association with wearables. Wearables were measured by ownership and usage of apps, fitness trackers, or sports wat…
Where Cyber Meets the Electromagnetic Spectrum
2019
Cyber linked with Information Technology, computers and the internet are the most commonly understood potential threats that everybody is aware of nowadays. In the case of National Cyber Strategy most efforts are given to these potential battlefields and threats. But is it enough to stay with these paradigms? Cyber warfare will look for utmost effects for chaos and misalignment of economy and therefore we cannot exclude the facts, that there is a potential threat also possible in the cut volumes between the information technology, the electromagnetic spectrum and its linked infrastructure and processes. We understand the technology for mobile telecommunications and data transfer, as the pro…
Semantic place recognition for context aware services
2012
Extracting the meaning of the most significant places, which are frequently visited by a mobile user, is a relevant problem in mobile computing. Predicting semantic meaning of such places is useful in many areas. The problem of place semantic annotation of a user location can be challenging for service providers. Awareness of user activities is very important for development of personalized applications, which can be used in health care systems, living systems, etc. Predicting location of mobile users not only enables development of high quality location-based services and applications, but also improves resource reservation in wireless networks. In this research several solutions for seman…