Essays about: "Spectrum Sensing"

Showing result 16 - 20 of 59 essays containing the words Spectrum Sensing.

  1. 16. Outage Probability Analysis of CooperativeCognitive Radio Networks Over κ − μ Shadowed Fading Channels

    University essay from Blekinge Tekniska Högskola/Institutionen för tillämpad signalbehandling

    Author : Mahathi Poreddy; [2016]
    Keywords : Cognitive Radio Networks; Cooperative Communications; Decode-and-Forward Relays; Multiple-relay; Outage Probability;

    Abstract : Over time, wireless technology advancements in the field of communications have been attracting every individual to turn into a wireless user. To accommodate the increasing number of users and to avoid the problem of spectrum scarcity, the concept of Cognitive Radio Network (CRN) has been developed. READ MORE

  3. 17. Differentiation and classification of different materials on a touch-screen using a piezoelectric contact microphone

    University essay from Lunds universitet/Avdelningen för Biomedicinsk teknik

    Author : Anders Björn; [2016]
    Keywords : Technology and Engineering;

    Abstract : In this report, a potential improvement of an optical touch screen solution by means of acoustic sensing is presented. The goal is to utilize the different vibration patterns that arise when different materials touch the screen to be able to identify them. READ MORE

  4. 18. Silicon photonics based MEMS tunable polarization rotator for optical communications

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Sandipan Das; [2016]
    Keywords : Silicon photonics; MEMS; Tunable polarization rotator; Polarization beam splitter; Kiselfotonik; MEMS; Flytande polarisationsrotator; polarisationsstr°aldelare;

    Abstract : There has been a huge surge in data traffic all over the world due to the rise of streamingmedia services and connected devices. The current demand in data traffic has alreadypushed the optical fiber in the internet architecture to the network edges and the trend isto push it as close as possible, to the CPU. READ MORE

  5. 19. Testing the robustness of the Plant Phenology Index to changes in temperature

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Iain Lednor; [2015]
    Keywords : NDVI; Plant Phenology Index; physical geography and ecosystem analysis; remote sensing; EVI2; Vegetation Index; temperature; phenology.; Earth and Environmental Sciences;

    Abstract : Traditional vegetation indices have long encountered a problem of saturating at high biomass levels. A newly formulated vegetation index, the Plant Phenology Index (PPI), which has a near linear relationship with canopy green leaf area index (LAI) is tested in this study against temperature at 12 sites across Sweden. READ MORE

  6. 20. Evaluation of two Doppler radar systems for proximity sensing

    University essay from Högskolan i Gävle/Avdelningen för elektronik, matematik och naturvetenskap

    Author : Liang Hailong; [2014]
    Keywords : ;

    Abstract : Most of Doppler Radar systems are expensive to build and hard to take out for the testing.Therefore a portable and easy building Doppler Radar system has been implemented in recent years.For this thesis two Doppler radar systems which working in different frequency ranges (24 GHz and 2. READ MORE