Search for dissertations about: "Mac"

Showing result 16 - 20 of 128 swedish dissertations containing the word Mac.

2. 16. Accuracy and Delay: An Inherent Trade-off in Cooperative UWB Navigation

   Author : Gabriel Garcia; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; positioning; Ultra-wideband; navigation; MAC delay; localization.; S-TDMA;

   Abstract : Location-aware applications and wireless sensor networks are becoming essential in our daily lives from a commercial, and public perspectives. The need of localization information to drive the applications is a key requirement. New technologies have emerged to tackle the problem of the limitations of the Global Positioning System (GPS) solutions. READ MORE

4. 17. Mental adjustment and Health-related: Quality of Life In laryngeal cancer patients Quantitative and Qualitative approaches

   Author : Mia Johansson; Göteborgs universitet; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; laryngeal cancer; Health-related Quality of Life; Mental adjustment to cancer; Patient Reported Outcomes; S-SECEL; Mini-Mac;

   Abstract : The overall aim of this thesis was to investigate mental adjustment and HRQL in patients treated for laryngeal cancer. Specific aims were to evaluate if either VAS or Likert response options was more suitable when assessing self-ratings of voice and speech; to investigate the sensitivity to change of the Swedish Self Evaluation of Communication Experiences after Laryngeal Cancer questionnaire (the S-SECEL); to investigate the relation between mental adjustment to cancer and HRQL, mood disorder and survival and to evaluate the content validity of the Swedish version of the Mini-MAC Scale. READ MORE

5. 18. On the trade-off between uncertainty and delay in UWB and 5G localization

   Author : Gabriel Garcia; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Ultra-wideband; MIMO; positioning; MAC delay; localization; 5G; initial access; millimeter-wave; multipleinput multiple output;

   Abstract : Location-aware technologies in combination with emerging wireless communication systems have revolutionized many aspects of our daily lives by means of applications within the commercial, public and military sectors. Ultra-wideband (UWB) and 5G stand out as emerging radio frequency (RF) based technologies that tackle the limitations of Global Positioning System solutions. READ MORE

6. 19. Passive Optical Top-of-Rack Interconnect for Data Center Networks

   Author : Yuxin Cheng; Jiajia Chen; Lena Wosinska; Matteo Fiorani; Qiong Zhang; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Optical communications; data center interconnects; MAC protocol; dynamic bandwidth allocation.; Informations- och kommunikationsteknik; Information and Communication Technology;

   Abstract : Optical networks offering ultra-high capacity and low energy consumption per bit are considered as a good option to handle the rapidly growing traffic volume inside data center (DCs). However, most of the optical interconnect architectures proposed for DCs so far are mainly focused on the aggregation/core tiers of the data center networks (DCNs), while relying on the conventional top-of-rack (ToR) electronic packet switches (EPS) in the access tier. READ MORE

7. 20. Mobility and Multi-channel Communications in Low-power Wireless Networks

   Author : António Gonga; Mikael Johansson; Riku Jäntti; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Mobility; Multi-channel communications; Neighbor Discovery; MAC Protocols; Low-power Wireless Networks; Electrical Engineering; Elektro- och systemteknik;

   Abstract : The prospect of replacing existing fixed networks with cheap, flexible and evenmobile low-power wireless network has been a strong research driver in recent years.However, many challenges still exist: reliability is hampered by unstable and burstycommunication links; the wireless medium is getting congested by an increasingnumber of wireless devices; and life-times are limited due to difficulties in developingefficient duty-cycling mechanisms. READ MORE