Search for dissertations about: "cooperative positioning"

Showing result 1 - 5 of 9 swedish dissertations containing the words cooperative positioning.

2. 1. Communication and Positioning Uncertainties in Cooperative Intelligent Transportation Systems

   Author : Erik M Steinmetz; RISE; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; cooperative positioning; resource allocation; cooperative intelligent transportation systems; packet reliability; vehicular communication;

   Abstract : The current road transport system has problems with both safety and efficiency. Future intelligent transportation systems (ITS) are envisioned to alleviate these problems. In particular, cooperative ITS, where vehicles are connected to each other and the cloud, will allow vehicles to collaborate and share both sensor and control information. READ MORE

4. 2. Wireless Sensor Network Positioning Techniques

   Author : Mohammad Reza Gholami; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; outer-approximations; Cram; Wireless sensor network; nonlinear and linear least squares; cooperative positioning; projection onto convex sets; maximum likelihood esti- mator;

   Abstract : Position information is one of the key requirements for wireless sensor networks(WSNs). Since GPS receivers have drawbacks when used in low-power sensor nodes,mainly due to latency in position recovery and limited access to GPS satellites in indoor-type scenarios, extracting the position information by means of the network itself, so-called positioning or localization, has been considered an eective solution for the posi-tioning problem. READ MORE

5. 3. 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

6. 4. 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

7. 5. Nucleosome positioning : impact on transcription factors access

   Author : Qiao Li; Karolinska Institutet; Karolinska Institutet; []
   Keywords : glucocorticoid receptor; transcription factor; gene regulation; nucleosome; nucleosome positioning; DNA-bending sequence;

   Abstract : In the eukaryotic cell nucleus, DNA is organized into nucleosomes. Some of the regulatory regions are integrated into sequence-specifically positioned nucleosomes. READ MORE