Essays about: "Cognitive Relay Networks"
Showing result 1 - 5 of 12 essays containing the words Cognitive Relay Networks.
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1. Outage Probability Analysis of CooperativeCognitive Radio Networks Over κ − μ Shadowed Fading Channels
University essay from Blekinge Tekniska Högskola/Institutionen för tillämpad signalbehandlingAbstract : 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. READ MORE
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2. Performance Analysis of a MIMO Cognitive Cooperative Radio Network with Multiple AF Relays
University essay from Blekinge Tekniska Högskola/Institutionen för tillämpad signalbehandlingAbstract : 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. READ MORE
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3. Exploiting the Direct Communication Link for Enhancing Effective Capacity Performance of Cognitive Radio Relay Networks
University essay from Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskapAbstract : 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). READ MORE
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4. 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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5. Effect of Primary Network on Performance of Spectrum Sharing System over Nakagami-m Fading Channel
University essay from Blekinge Tekniska Högskola/Institutionen för kommunikationssystemAbstract : During the last few years, we have witnessed that radio spectrum is becoming a valuable and scarce resource due to the increasing demand of multimedia services. However, recent research has shown that most of the available radio spectrum is not used effectively and is wasted. READ MORE