Essays about: "distributed spectrum sensing"

Showing result 1 - 5 of 7 essays containing the words distributed spectrum sensing.

  1. 1. 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

  3. 2. 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

  4. 3. Spectrum Selection Technique to Satisfy the QoS Requirements in Cognitive Radio Network

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

    Author : Sheikh Fakhar Uddin; Ismail Khan Khattak; [2012]
    Keywords : Cognitive Radio Network; QoS; Spectrum Selection ;

    Abstract : The demand of wireless spectrum is increasing very fast as the field of telecommunication is advancing rapidly. The spectrum was underutilized because of fixed spectrum assignment policy and this valuable spectrum can be utilized efficiently by cognitive radio technology. READ MORE

  5. 4. APPLYING DISTRIBUTED ORTHOGONAL SPACE TIME BLOCK CODING IN COOPERATIVE COMMUNICATION NETWORKS

    University essay from Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

    Author : James Adu Ansere; Odion Ehimiaghe; [2012]
    Keywords : Decode and Forward; BER; DOSTBC; Cooperative communications;

    Abstract : In this research, we investigate cooperative spectrum sensing using distributed orthogonal space time block coding (DOSTBC). Multiple antennas are introduced at the transmitter and the receiver to achieve higher cooperative diversity in the cooperative wireless (CW) networks. READ MORE

  6. 5. Interference Management for Stabilization of Dynamical Systems over Wireless Channels

    University essay from KTH/Kommunikationsteori

    Author : Bilal Ibrahim; [2012]
    Keywords : ;

    Abstract : In networked control systems, dynamical systems are stabilized by actions of remotely placed controllers. This involves communication between plants and controllers over wireless channel(s). READ MORE