Sökning: "Signal Strength"

Visar resultat 1 - 5 av 57 uppsatser innehållade orden Signal Strength.

1. 1. Range Based Indoor Localization in Wireless Sensor Networks with Telos

   Magister-uppsats, Linköpings universitet/Linköpings universitet/KommunikationssystemTekniska högskolan

   Författare :Petter Pehrson Skidén; [2013]
   Nyckelord :Indoor Localization; RSSI; WSN; Telos; TinyOS; nesC; Trilateration;

   Sammanfattning : Localization of individual nodes in a wireless network is useful in many applications, e.g for tracking patients in hospitals. Using the Received Signal Strength Indicator, RSSI, for this purpose has been explored in numerous studies. It is energy efficient and rarely requires customised hardware of configuration. LÄS MER

3. 2. Potential Capacity for Wi-Fi system In TV White Space

   Master-uppsats, KTH/Skolan för informations- och kommunikationsteknik (ICT)

   Författare :Yanpeng Yang; [2012]
   Nyckelord :;

   Sammanfattning : In recent years, the demand of bandwidth has increased rapidly due to the growth of new technologies in wireless communication systems along with the rise of traffic flow. This has made the radio spectrum in a short supply. LÄS MER

4. 3. Biosensorsystem för övervakning av vattenkvalitet

   Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Institutionen för informationsteknologi

   Författare :Martini Alessandro; [2012]
   Nyckelord :Extraordinary transmission effect EOT ; plasmon; drinking water; real time measurement; Extraordinary transmission effect EOT ; plasmon; dricksvatten; realtidsmätning;

   Sammanfattning : Sweden's drinking water quality is considered to be high partly due to a high quality of the raw water and a well developed sewage infrastructure. Despite this, there is water contamination that could be prevented by installation of a sophisticated early warning system. LÄS MER

5. 4. Indoor Localization Based on RadioChannel Parameters in Wireless SensorNetworks

   Uppsats för yrkesexamina på avancerad nivå, KTH/Reglerteknik

   Författare :José Antonio Gutiérrez García; [2012]
   Nyckelord :;

   Sammanfattning : Wireless Sensor Networks are nowadays becoming increasingly popular. Due to their low cost, ease of deployment and application, they oer robust solutions in a variety of elds. In this context, localization is one of the most important functionalities that can be implemented. LÄS MER

7. 5. Wi-Fi Indoor Positioning

   Master-uppsats, Högskolan i Halmstad/Sektionen för Informationsvetenskap, Data– och Elektroteknik (IDE)

   Författare :STALINBABU THUMMALAPALLI; [2012]
   Nyckelord :;

   Sammanfattning : The Global Positioning System (GPS) is a space based satellite navigation system. It provides location and time information in all weather, anywhere on the earth. Unfortunately GPS fails to give position indoors, because it requires a direct line of sight to several satellites. LÄS MER