Essays about: "spectrum sharing"

Showing result 41 - 44 of 44 essays containing the words spectrum sharing.

  1. 41. Priority Queuing Based Spectrum sensing Methodology in Cognitive Radio Network

    University essay from Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

    Author : Sajid Mahmood / [email protected]; Mujeeb Abdullah / [email protected]; [2011]
    Keywords : Cognitive radio Networks ; Radio Spectrum Management ; Spectrum Sensing; Spectrum Mobility;

    Abstract : Radio spectrum is becoming scarce resource due to increase in the usage of wireless communication devices. However studies have revealed that most of the allotted spectrum is not used effectively. READ MORE

  3. 42. DETECTION OF VACANT FREQUENCY BANDS IN COGNITIVE RADIO

    University essay from Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

    Author : Ahmed Rehan; Ghous Yasir Arfat; [2010]
    Keywords : Cognitive radio; Spectrum Sensing ; Vacant Frequency bands; Spectrum Hole; Spectrum mobility; Cooperation strategies;

    Abstract : Cognitive radio is an exciting promising technology which not only has the potential of dealing with the inflexible prerequisites but also the scarcity of the radio spectrum usage. Such an innovative and transforming technology presents an exemplar change in the design of wireless communication systems, as it allows the efficient utilization of the radio spectrum by transforming the capability to dispersed terminals or radio cells of radio sensing, active spectrum sharing and self-adaptation procedure. READ MORE

  4. 43. Optimal Power Control in Cognitive Radio Networks with Fuzzy Logic

    University essay from Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

    Author : Jhang Shih Yu; [2010]
    Keywords : cognitive radio networks; channel gain; relative distance; fuzzy control; spectrum sharing; path loss; power control; quality of service;

    Abstract : In this thesis, we consider a pair of primary link (PU link) and a pair of cognitive link (CR link) in a fading channel. The PU link and CR link share spectrum simultaneously with different priorities, establishing the spectrum sharing network. The PU link has a higher priority to utilize spectrum with respect to the CR link. READ MORE

  5. 44. Study on a second-order bandpass Σ∆-modulator for flexible AD-conversion

    University essay from Institutionen för systemteknik

    Author : Hanna Svensson; [2008]
    Keywords : Sigma-Delta; Delta-Sigma; bandpass modulators; flexible ADC;

    Abstract : An important component in many communication system is the digital to analog converter. The component is needed in order to convert real world analog quantities to digital quantities which are easier to process. READ MORE