Sökning: "Cognitive Radio Network CRN"

Visar resultat 1 - 5 av 9 uppsatser innehållade orden Cognitive Radio Network CRN.

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

3. 2. 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

4. 3. Fuzzy Based power control system Using ANFIS and MIMO-OFDM Techniques in Cognitive Radio Networks

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

   Författare :Mahesh Aleti; Rahamatulla Syed; Rajendra Prasad Chennupati; [2014]
   Nyckelord :Cognitive Radio; Power Control; the Fuzzy Interference System FIS ; ANFIS; “MIMO” “Multiple Input Multiple Output” ; “OFDM” “Orthogonal Frequency Division Multiplexing” ; AWGN; BER; SNR; Eb N0;

   Sammanfattning : Cognitive Radio technology is used for efficient utilization of the spectrum. There are two types of users, one is the Primary user (PU), and the second one is the Secondary user (SU). In those users, PU is having the license to use the spectrum. The SU does not have the license to use the spectrum. LÄS MER

5. 4. The Performance of Dual-Hop Decode-and-Forward Underlay Cognitive Relay Networks with Interference Power Constraints over Weibull Fading Channels

   Master-uppsats, Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

   Författare :Andawattage Chaminda Janaka Samarasekera; [2014]
   Nyckelord :Cognitive Radio; Weibull Fading Channels; Cooperative Communication; Cognitive Relay Networks;

   Sammanfattning : With the rapid development and the increasing use of wireless devices, spectrum scarcity has become a problem. The higher frequencies have bad propagation characteristics and the lower frequencies have low data rates, therefore the radio spectrum that is available for efficient wireless transmission is a limited resource. LÄS MER

7. 5. OPTIMIZED FUZZY BASED POWER CONTROL STRATEGY IN COGNITIVE RADIO NETWORKS IN MULTI FADING PROPAGATION ENVIRONMENTS

   Master-uppsats, Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

   Författare :Praneeth Kumar Bejjenki; Muneeb Ahmed Goraya; Syed Fovad Moid; [2013]
   Nyckelord :Cognitive Radio Networks; Spectrum Sharing Networks; Power Control; Takagi-Sugeno Fuzzy Inference System; m-Nakagami fading channel; OFDM.;

   Sammanfattning : In this thesis we have considered a cognitive radio network (CRN) with a pair of primary user (PU) and secondary user (SU) in spectrum sharing networks in path-loss and without path-loss propagation environments under identically distributed m-Nakagami fading channel. The thesis consists of three parts. LÄS MER