Essays about: "Amplify and Forward"

Showing result 11 - 15 of 21 essays containing the words Amplify and Forward.

1. 11. Performance Analysis of 3-hop using DAF and DF over 2-hop Relaying Protocols

   University essay from Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

   Author : Faisal Mehmood; Muneeb Ejaz; [2013]
   Keywords : Bit Error Rate; Cognitive Radio; Decode Amplify and Forward; Energy Detection; Probability of Detection; Rayleigh Fading; Relay Network;

   Abstract : In wireless Communication, the need of radio spectrum increases nowadays. But in the system we are losing approximately 82-86% of spectrum most of the time due to the absence of Primary User (PU). To overcome this issue Cognitive Radio (CR) is an admirable approach. READ MORE

3. 12. Adaptive Modulation for Dual-Hop Amplify-and-Forward Relaying Networks with Partial Relay Selection under Co-Channel Interference

   University essay from Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

   Author : Sohaib Ahmed Siddiqui; Mohammad Abbas Khan; [2013]
   Keywords : Amplify-and-forward; BER; Outage Probability; SNR; Spectral Efficiency;

   Abstract : A new era of wireless communications combats with many challenges, including the performance issues and the demand of higher data rate. Upcoming generations of wireless communications will bear the resemblance in terms of same issues. READ MORE

4. 13. 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

5. 14. Performance Analysis of OSTBC with Hybrid Decode-Amplify and Forward relay network

   University essay from Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

   Author : Kanoksak Wannatrong; Mohammed Abul Hayat; [2013]
   Keywords : Cooperative communication; symbol error rate; moment generating function; orthogonal space-time block code. ;

   Abstract : In the last few decades, the innovation of Wireless communication has been developed very fast in order to improve the performance of communication systems. Especially,a concept of Multiple Input and Multiple Output (MIMO) is purposed to fulfill a high data rate service such as high quality video conference. READ MORE

6. 15. 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