Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 196 for “"Wi-fi"”.
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Grande Wi-Fi : understanding what Wi-Fi users are doing in coffee-shops
… has recently been highlighted by the launch of wireless "hotspots" which provides e-access through Wi-Fi technology, in coffee-shops and several other public places in America. This thesis explores the social implications of introduction of Wi-Fi in coffee-shops, drawing on ethnographic …
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Dual Wi-Fi: Dual Channel Wi-Fi for Congested WLANs with Asymmetric Traffic Loads
… AP to the clients (Downlink), far outweighs traffic demand from the clients to the AP (Uplink), thereby yielding traffic asymmetry. Moreover, when many clients associate with a single AP, the clients can cause a disproportional amount of medium contention compared to the AP, producing contention …
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See through walls with Wi-Fi
Wi-Fi signals are typically information carriers between a transmitter and a receiver. In this thesis, we show that Wi-Fi can also extend our senses, enabling us to see moving objects through walls and behind closed doors. For example, we can identify the number of people in a closed room and their …
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Redes Wi-Fi: ¿Realmente se pueden proteger?
Este trabajo final de máster pretende analizar el estado actual de la seguridad de la redes Wi-Fi, que recientemente se han visto cuestionadas por el descubrimiento de nuevas vulnerabilidades.En la primera parte del trabajo se expondrán conceptos básicos de este tipo de redes y analizarán los …
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Pedestrian traffic monitoring using Wi-Fi technology
The study of pedestrian traffic has been investigated by many organizations such as governments, city councils and businesses. The knowledge of pedestrian traffic behaviour can be useful for planning better services for citizens. To perform the surveys for obtaining this knowledge, a number of …
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Wi-Fi attack mitigation: analysis, design and implementation
Wi-Fi network provides local area network with mobility, convenience and low cost. At the same time, it suffers several typical security problems, such as being unsafe and more vulnerable than traditional wired network. The shared nature of wireless medium makes wireless network attacks easily to …
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Dvoupásmová wi-fi anténa pro komunikaci uvnitř auta
Bakalárska práca sa zaoberá návrhom dvojpásmovej planárnej antény na textilnom substráte pre použitie vo WLAN sieťach v ISM pásmach 2,4 a 5,8 GHz vnútri automobilu. V teoretickej časti sú stručne opísané základné poznatky o vlastnostiach a typoch planárnych mikropásikových antén, spôsoboch …
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Nástroje pro penetrační testování Wi-Fi a IPv4
… penetrační testování bezdrátových sítí Wi-Fi a síťové infrastruktury IPv4. Teoretická část se věnuje samotnému penetračnímu testování, přístupů, fázi a typům. Dále je popsán vývoj Wi-Fi sítí a jejich bezpečnostní protokoly. Jsou představeny různé penetrační nástroje pro Wi-Fi sítě a také …
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Android wi-fi location awareness and data inference heuristic.
… are increasingly carrying their mobile devices with them almost everywhere. Mobile devices fit perfectly into an ideal environment for realizing ubiquitous computing. A major aspect of ubiquitous computing is context-aware applications where the applications collect information about the …
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Group formation and communication in mobile wi-fi networks
Use of Wi-Fi-capable mobile handheld devices is gaining momentum in university campuses. In addition, students often work as a group to perform collaborative tasks on campus. Consequently, there is a demand for group communication applications in mobile devices and a need to provide middleware …
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Private network access management systems in wi-fi environments
Wi-Fi has become integral to modern life, yet its pervasive connectivity introduces significant privacy risks as devices broadcast identifiable information during network discovery and communication. While MAC address randomization has been widely deployed to mitigate tracking, existing …
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Desenvolupament de plataforma de vídeo màrqueting per Wi-Fi HotSpot
Aquest treball final de grau consisteix en aprofitar els punts de connexió a Internet d'establiments i llocs públics on, mitjançant un portal captiu, s'utilitza un reproductor amb vídeos publicitaris per evitar la connexió tancada amb contrasenya o autentificació d'usuaris.
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Practical Realisation and Validation of a Wi-Fi Policing Algorithm
… abide by the standard and gain performance benefit at the cost of the performance of compliant stations. In this thesis, we study, extend, and implement a policing algorithm that has been previously introduced for IEEE 802.11 b/g networks, and make it practically feasible for implementation on …
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Time Sensitive Networking for Wi-Fi Based Wireless Industrial Environments
… by deterministic low latency, dedicated bandwidth resources, and, chiefly, reliability. Several fieldbus technologies are specially placed for this. Their commonality is that they run on standard Ethernet. The relatively new Time Sensitive Networking (TSN) is among these technologies. It is a …
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Sub-nanosecond time of flight on commercial Wi-Fi cards
… most intuitive way to measure distances using wireless signals. It is used in major positioning systems such as GPS, RADAR, and SONAR. However, attempts at using time-of-flight for indoor localization have failed to deliver acceptable accuracy due to fundamental limitations in measuring time on …
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Enhanced indoor positioning utilising wi-fi fingerprint and QR calibration techniques
The growing interest in location-based services (LBS), due to the demand for its application in personal navigation, billing and information enquiries, has expedited the research development for indoor positioning techniques. The widely used global positioning system (GPS) is a proven technology …
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TOR NETWORK VIDEO FINGERPRINTING OVER RESIDENTIAL WI-FI AND CONGESTED NETWORK INTERFACES
… the Onion Router (Tor) to encrypt their web traffic and protect their online anonymity. This usage has led to an interest in attacks on Tor, such as video fingerprinting, which seeks to identify what video is being streamed solely by analyzing features in the encrypted traffic trace. This thesis …
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Resource Allocation in 5G: NR Sidelink Mode 2 & Wi-Fi 6/7
5G/5G advanced era brings about two emerging wireless technologies: New Radio (NR) Sidelink (SL) and Wi-Fi 6/7. First, 5G New Radio (NR) Sidelink (SL) has demonstrated the promising capability for infrastructure-less cellular coverage. Understanding the fundamentals of the NR SL channel access …
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