Essays about: "Cognitive Radio Networks"
Showing result 6 - 10 of 32 essays containing the words Cognitive Radio Networks.
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6. The Performance of Dual-Hop Decode-and-Forward Underlay Cognitive Relay Networks with Interference Power Constraints over Weibull Fading Channels
University essay from Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskapAbstract : 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. READ MORE
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7. Optimization of Cognitive Radio in NLoS Backhauling of Small Cells
University essay from Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskapAbstract : The increasing demand of data access and user experience result in deployment of new technologies (3G, LTE, WiMAX, Cognitive Radio), Long Term Evolution (LTE) is one of them which promises to fulfill the variable demand of subscribers through small cells instead of macro cells. The backhauling of the small cells in densely populated urban area is again a very difficult task to handle with Government regulations (eccentricities) and restrictions. READ MORE
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8. Alternative Mobile Broadband Deployment in Countries with Low Spectrum Allocation and Low Fixed Line Penetration
University essay from KTH/Skolan för informations- och kommunikationsteknik (ICT)Abstract : The research work presented in this document deals with the problem of implementing high capacity mobile networks that are able to accommodate the ever increasing amounts of data traffic produced by mobile broadband users, given the dramatic expansion this service has experienced in the recent past due to the popularity of smartphones and tablets. Moreover, the analysis focuses in the feasibility of considering alternative deployment strategies that may render cost-efficient solutions while overcoming the challenges posed by the low amount of spectrum allocated to operators and the limited number of fixed telephone and internet lines available, which are characteristic of developing countries. READ MORE
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9. Inter-Operator Spectrum sharing in Cellular Network using Repeated Game Theory
University essay from Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskapAbstract : Due to the limitation of spectrum in the network and the increasing of the demand of the spectrum in the network, spectrum-sharing techniques are used to increase the efficiency of the network. Dynamic Spectrum Sharing Network is one of the techniques that describe the intelligent networks such as Cognitive Radio networks, Cognitive Radio, and Software Defined Radios. READ MORE
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10. 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 ingenjörsvetenskapAbstract : 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
