Essays about: "kognitiv radio"

Showing result 1 - 5 of 6 essays containing the words kognitiv radio.

  1. 1. Optimal Power Allocation and Ergodic Capacity in Cognitive Radio Network

    University essay from KTH/Skolan för elektro- och systemteknik (EES)

    Author : Guanren Wen; [2016]
    Keywords : ;

    Abstract : Cognitive radio network allows the secondary users (SUs) in a secondary communication network (SCN) coexist with priority users in a priority communication network (PCN). The interference caused by SCN to PCN is required to be rational and not affected the quality of server within the PCN to each priority users (PUs). READ MORE

  3. 2. Minding the spectrum gaps : First steps toward developing a distributed white space sensor grid for cognitive radios

    University essay from KTH/Radio Systems Laboratory (RS Lab)

    Author : Javier Lara Peinado; [2013]
    Keywords : cognitive radio; cooperative spectrum sensing; energy detector; kognitiv radio; kooperativa spektrum avkänning; energi detektor;

    Abstract : The idea that the radio spectrum is growing ever more scarce has become commonplace, and is being reinforced by the recent bidding wars among telecom operators. New wireless applications tend to be deployed in the relatively narrow unlicensed frequency bands, worsening the problem of interference for all users. READ MORE

  4. 3. Spectrum sensing based on specialized microcontroller based white space sensors : Measuring spectrum occupancy using a distributed sensor grid

    University essay from KTH/Radio Systems Laboratory (RS Lab)

    Author : Julia Alba Tormo Peiró; [2013]
    Keywords : Cognitive radio; spectrum sensing; dynamic spectrum access; radio spectrum utilization; Kognitiv radio; spectrum sensing; dynamiskt spektrum tillgång; radiospektrum utnyttjas;

    Abstract : The continuing increase in the adoption and use of wireless technology aggravates the problem of spectrum scarcity due to the way we utilize the spectrum. The radio spectrum is a limited resource regulated by governmental agencies according to a fixed spectrum assignment policy. READ MORE

  5. 4. An Effecient Scheme in IEEE 802.22 WRAN for Real Time and Non Real Time Traffic Delay

    University essay from Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

    Author : Nawfal Al-Zubaidi R-Smith; Khaled Humood; [2013]
    Keywords : Channel sensing; Cognitive radio; energy and feature detection; IEEE 802.22; quiet period;

    Abstract : Cognitive radio network has emerged as a prevailing technique and an exciting and promising technology which has the potential of dealing with the inflexible prerequisites and the inadequacy of the radio spectrum usage. In cognitive radios, in-band sensing is fundamental for the protection of the licensed spectrum users, enabling secondary users to vacate channels immediately upon detection of primary users. READ MORE

  6. 5. Centralized Support Node for Mobility Management in Cognitive Radio Networks

    University essay from Blekinge Tekniska Högskola/Sektionen för datavetenskap och kommunikation

    Author : Srinivasan Jayaraman; Hemachandra Chowdari Gonuguntla; [2012]
    Keywords : Keywords: Cognitive radio; Signaling; Common control channel; mobility management;

    Abstract : Cognitive radio is expected to address several operational challenges like dynamic spectrum access, spectral heterogeneity and facilitate end-to-end Quality of Service (QOS). The complex nature of cognitive radio is due to its dependency on various network parameters at different levels and ambiguous standards. READ MORE