Essays about: "Cognitive radio"

Showing result 21 - 25 of 60 essays containing the words Cognitive radio.

1. 21. Literature review on Energy Efficiency of Base Stations and Improving Energy Efficiency of a network through Cognitive Radio

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

   Author : Sreedhar Reddy Mamidala; Shashank Reddy Nalapatla; [2013]
   Keywords : Base stations; Cognitive radio; Energy efficiency; Green networks; AODV and OLSR.;

   Abstract : Context: The usage of cellular devices has been advanced in recent years and expected to increase rapidly in the coming years. Thanks to rapid development of technologies which is making us comfortable in the field of communications. READ MORE

3. 22. Effect of Primary Network on Performance of Spectrum Sharing System over Nakagami-m Fading Channel

   University essay from Blekinge Tekniska Högskola/Institutionen för kommunikationssystem

   Author : Fahim Khan; Pierre Celestin Mazarati; Nasir Khan; [2013]
   Keywords : Cognitive Radio Network CRN ; Amplify and Forward AF ; Nakagami-m fading channel; Cooperative Spectrum Sharing.;

   Abstract : 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

4. 23. Spectrum Management in Cognitive Radio Ad Hoc Networks (CRAHNs) Using Bio-inspired Optimization Algorithms

   University essay from Sektionen för Informationsvetenskap, Data– och Elektroteknik (IDE)

   Author : Mahboobeh Parsapoor; [2013]
   Keywords : CRN; spectrum;

   Abstract : Cognitive Radio Network (CRN) has an important role in next generation wireless networks; it can potentially provide higher performance of wireless communication networks in terms of reliability, scalability, stability and spectrum efficiency. Cognitive radio networks are on the basis of radio nodes equipped with a cognitive engine (CE); it can manage spectrum and change transmission parameters using artificial intelligence methods in particular bio-inspired optimization methods. READ MORE

5. 24. Designing of Reconfigurable Multiband Antenna for WLAN Application

   University essay from Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

   Author : Sarfraz Hussain; Jibran Khan; [2013]
   Keywords : Mulitiband; Reconfiguration; Recunfigurable ; Antenna ; Parametric Study;

   Abstract : Remarkable equipment development in the field of communication and the growing end user requirement has lifted the need for multi-functional wireless communication devices. Since antenna is the basic part of each wireless communication scheme and multi-functional antennas are looked-for to meet up the requirements of present progress, those be able to sustain compound functions in a particular antenna constituent by sustaining other than one operational frequency . READ MORE

6. 25. Performance Evaluation of 2-Hop and 3-Hop Relay Network using DF, AF and DAF Relaying Protocols

   University essay from Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

   Author : Mohsin Kamal; Theera Yukong; [2012]
   Keywords : Amplify and Forward; Decode and Forward; Decode Amplify and Forward; Relay network; 2-hop and 3-hop cognitive radio networks ;

   Abstract : Cognitive radio is an evolving wireless technology employed to increase the frequency spectrum utilization of the limited spectral resources. Cooperative communications has been established as a potential method of solving the fading effects in wireless communications, improving the reliability of network performance, network throughput, and adaptability. READ MORE