Sökning: "Cognitive Radio"

Visar resultat 1 - 5 av 63 uppsatser innehållade orden Cognitive Radio.

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

    Master-uppsats, Blekinge Tekniska Högskola/Institutionen för tillämpad signalbehandling

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

    Sammanfattning : 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. LÄS MER

  2. 2. Performance Analysis of a MIMO Cognitive Cooperative Radio Network with Multiple AF Relays

    Master-uppsats, Blekinge Tekniska Högskola/Institutionen för tillämpad signalbehandling; Blekinge Tekniska Högskola/Institutionen för tillämpad signalbehandling

    Författare :Advaita Advaita; Mani Meghala Gali; [2016]
    Nyckelord :Cognitive radio; Cooperative communications; Space time coding; MIMO systems; Outage probability;

    Sammanfattning : With the rapid growth of wireless communications, the demand for the various multimedia services is increasing day by day leading to a deficit in the frequency spectrum resources. To overcome this problem, the concept of cognitive radio technology has been proposed which allows the unlicensed secondary user (SU) to access the licensed spectrum of the primary user (PU), thus improving the spectrum utilization. LÄS MER

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

    Master-uppsats, KTH/Skolan för elektro- och systemteknik (EES)

    Författare :Guanren Wen; [2016]
    Nyckelord :;

    Sammanfattning : 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). LÄS MER

  4. 4. Performance Analysis of a Cooperative Communication Network Over κ - μ Shadowed Fading for Different Relaying Protocols

    Master-uppsats, Blekinge Tekniska Högskola/Institutionen för tillämpad signalbehandling

    Författare :Alekhya Kodide; [2016]
    Nyckelord :Cooperative communications; κ−µ shadowed fading; relaying protocols; outage probability;

    Sammanfattning : With the fast development of today’s multimedia services, engineers face a huge hurdle that is, the overwhelming need of highly reliable communication over long distances. Cooperative communication is a novel concept which tackles this problem effectively. LÄS MER

  5. 5. Exploiting the Direct Communication Link for Enhancing Effective Capacity Performance of Cognitive Radio Relay Networks

    Master-uppsats, Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

    Författare :Md Abdul Matin Biswas; [2014]
    Nyckelord :Cognitive Radio; Quality of Service QoS ; Effective Capacity; Cooperative Relaying; Cognitive Relay Networks; Peak Interference Power Constraint; Delay QoS Constraint;

    Sammanfattning : Nowadays, cognitive radio (CR) is a promising concept to improve the radio spectrum exploitation. CR has tremendous ability to enhance spectrum efficiency by allowing secondary users (SUs) to access licensed radio spectrum resource which is currently not being used by primary users (PUs). LÄS MER