Search for dissertations about: "Wireless sensor networks"

Showing result 16 - 20 of 158 swedish dissertations containing the words Wireless sensor networks.

  2. 16. Optimal Networking in Wirelessly Powered Sensor Networks

    Author : Rong Du; Carlo Fischione; Ming Xiao; Aylin Yener; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Wireless energy transfer; network lifetime; energy beamforming; IoT; smart cities; sensor networks; scheduling; optimization; Electrical Engineering; Elektro- och systemteknik;

    Abstract : Wireless sensor networks (WSNs) are nowadays widely used for the long-term monitoring of small or large regions, such as lakes, forests, cities, and industrial areas. The performance of a WSN typically consists of two aspects: i) the monitoring performance, e.g. READ MORE

  4. 17. Network-Calculus-based Performance Analysis for Wireless Sensor Networks

    Author : Huimin She; Axel Jantsch; Marko Hännikäinen; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Wireless sensor networks; performance analysis; network calculus; traffic splitting; Computer and systems science; Data- och systemvetenskap; Information technology; Informationsteknologi; Electronics; Elektronik;

    Abstract : Recently, wireless sensor network (WSN) has become a promising technologywith a wide range of applications such as supply chain monitoringand environment surveillance. It is typically composed of multiple tiny devicesequipped with limited sensing, computing and wireless communicationcapabilities. READ MORE

  5. 18. Securing Communication in IP-Connected Industrial Wireless Sensor Networks

    Author : Shahid Raza; Mats Björkman; Ben Smeets; Mälardalens högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Wireless Sensor Networks; Security; 6LoWPAN; IPsec; WirelessHART; Computer science; Datavetenskap; Computer Science; datavetenskap;

    Abstract : With the advent of wireless sensor networks (WSN) and success of wirelesscommunication in the local and personal area networks such asWi-Fi and Bluetoothmore serious efforts to apply standard wireless communication in sensitiveindustrial networks were initiated. This effort resulted in the standardizationof WirelessHART. READ MORE

  6. 19. Low-delay sensing and transmission in wireless sensor networks

    Author : Johannes Karlsson; Mikael Skoglund; Markus Flierl; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Cooperative communication; wireless sensor networks; low-delay transmission; joint source-channel coding; estimation; quantization; Telecommunication; Telekommunikation;

    Abstract : With the increasing popularity and relevance of ad-hoc wireless sensor networks, cooperative transmission is more relevant than ever. In this thesis, we consider methods for optimization of cooperative transmission schemes in wireless sensor networks. READ MORE

  7. 20. 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