Sökning: "terminal user"
Visar resultat 1 - 5 av 41 avhandlingar innehållade orden terminal user.
1. The human-computer interface in commercial systems : Investigations of dialogue design factors and usability with alphanumeric display terminals
Sammanfattning : When terminal based computer systems are incorporated in administrative processes, man-computer interface technology for many reasons becomes a crucial problem area. Terminal users ("terminalists") in such systems account for a vast number of terminal hours. LÄS MER
2. User Effect Mitigation in MIMO Terminal Antennas
Sammanfattning : The rapid growth of cellular technology over the past decade transformed our lives, enabling billions of people to enjoy interactive multimedia content and ubiquitous connectivity through a device that can fit into the palm of a hand. In part the explosive growth of the smartphone market is enabled by innovative antenna system technologies, such as multiple-input multiple-output (MIMO) systems, facilitating high data rates and reliable connections. LÄS MER
3. Multiple Antenna Terminals in Realistic Environments - A Composite Channel Modeling Approach
Sammanfattning : For evaluation of specific antenna arrangements in wireless communication systems we need physical channel models that take into account also the directional domain of the propagation channel. In this thesis we investigate, validate and propose a practical approach to wireless channel modeling and, particularly, to mobile communication systems. LÄS MER
4. Gammal är äldst : En studie om teknik i äldre människors liv
Sammanfattning : This thesis deals with the role of technology in elderly peoples everydaylife, to what extent technology can facilitate or prevent them from havinga social life. The intension is to describe the role of technology from olderpeoples own perspective. LÄS MER
5. Mobile Antenna Systems for 4G and 5G Applications with User Body Interaction
Sammanfattning : In the thesis, the user body effect on antennas in a mobile terminal is discussed. In order to overcome the degradation of Multiple-Input Multiple-Output (MIMO) performance due to the user body effect, a quad-elements MIMO antenna array which can mitigate the body effect through an adaptive antenna switching method is introduced for 4G mobile terminals. LÄS MER