Sökning: "cognitive radio"

Visar resultat 1 - 5 av 42 uppsatser innehållade orden cognitive radio.

1. Spectrum Sensing of acoustic OFDM signals
Master-uppsats, Linköpings universitet/Linköpings universitet/KommunikationssystemTekniska högskolan
Författare :Sivakesava Reddy Malkireddy; [2012]
Nyckelord :OFDM; Autocorrelation; Spectrum Sensing; Cognitive radio; GLRT;

Sammanfattning : OFDM is a fast growing technology in the area of wireless communication due to its numerous advantages and applications. The current and future technologies in the area of wireless communications like WiMAX, WiFi, LTE, MBWA and DVB-T uses the OFDM signals. LÄS MER
2. Analysis of Interference from Secondary System in TV White Space
Master-uppsats, KTH/Skolan för informations- och kommunikationsteknik (ICT)
Författare :Sunil Puri; [2012]
Nyckelord :;

Sammanfattning : The demand of bandwidth has increased in recent years with the advent of new technologies in wireless communication systems along with the rise of traffic flow. This has resulted the radio spectrum into a scarce entity. LÄS MER
3. Directional Spectrum Sensing and Transmission Using a Sector Antenna
Master-uppsats, Mittuniversitetet/Institutionen för informationsteknologi och medier
Författare :Bilal Hasan Qureshi; [2012]
Nyckelord :Spectrum Sensing; Ray-tracing and Sector Antennas;

Sammanfattning : Spectrum sensing plays a key role for radio resource awareness in cognitive radio. To enhance the capabilities of cognitive radio nodes, exploiting the spatial resource in addition to frequency and time re-sources seems reasonable. LÄS MER

4. HELPING COGNITIVE RADIO IN THE SEARCH FOR FREE SPACE
Master-uppsats, Högskolan i Gävle/Avdelningen för elektronik, matematik och naturvetenskap
Författare :Lee Gonzales Fuentes; [2012]
Nyckelord :Discriminant analysis; spectrum sensing; cognitive radio; spectral component; Rice distribution;

Sammanfattning : Spectrum sensing is an essential pre-processing step of cognitive radio technology for dynamic radio spectrum management. One of the main functions of Cognitive radios is to detect the unused spectrum and share it without harmful interference with other users. LÄS MER
5. Visuell Radio
Kandidat-uppsats, Luleå/Institutionen för konst, kommunikation och lärande
Författare :Joseph Knevel; [2012]
Nyckelord :Radio; multimedia; audiovisuell; ljudbildspel;

Sammanfattning : Visual radio or audio slideshow presented together on the same platform is an unexplored area. The area is technically ready for it and practically there are no obsticles.What this essay problematizes and discusses is how visual radio could be formed from a production point of view and from a receivers point of view. LÄS MER