Essays about: "Amplify and Forward"

Showing result 16 - 20 of 21 essays containing the words Amplify and Forward.

1. 16. PERFORMANCE ANALYSIS OF HYBRID DECODE-AMPLIFY FORWARD RELAYING PROTOCOLS IN COGNITIVE NETWORKS

   University essay from Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

   Author : Awais Salman Qazi; Muhammad Shoaib; Muhammad Shahan Saleem; [2012]
   Keywords : MIMOs; PU; SU; CRs; CC; Maximum Likelihood estimation ;

   Abstract : Nowadays, the world has observed a tremendous increase in the demand of radio spectrum in wireless communication. Services like broadband internet, telecommunication, videoconferencing, mobile IP, online multimedia gaming and other applications have been deployed using wireless services. READ MORE

3. 17. Spectrum Sensing of Cognitive Radio Networks using Amplify and Forward Relay over Correlated Nakagami-m Fading Channel

   University essay from Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

   Author : Suman Dongol Maharjan; [2011]
   Keywords : Amplify-and-forward AF ; orthogonal space-time codes OSTBCs ; correlated Nakagami-m fading; detection probability; cognitive radio.;

   Abstract : In the last ten years, we have been witnessing the vast growth in wireless communications due to the popularity of many wireless devices, mobiles, smart phones etc. As a result, the demand for high data rates, bandwidth, and spectrum utilization has increased. READ MORE

4. 18. Performance analysis of dual hop cellular networks

   University essay from Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

   Author : Muhammad Adeel Islam; Khan Ahmad Shah; [2011]
   Keywords : Diversity techniques; wireless networks; fading channels; relay channels; outage probability; symbol error rate; bit error rate; multiple input multiple output; user cooperation.;

   Abstract : Explosive growth in wireless technology caused by development in digital and RF circuit fabrications put some serious challenges on wireless system designers and link budget planning. Low transmit power, system coverage and capacity, high data rates, spatial diversity and quality of services (QOS) are the key factors in future wireless communication system that made it attractive. READ MORE

5. 19. Performance Analysis of Selected Cooperative Relaying Techniques

   University essay from Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

   Author : Muhammad Afaq; Sahibzada Muhammad Faheem; [2010]
   Keywords : Cooperative communication; Relaying techniques; Amplify-and-forward; Decode-and-forward; DtF; S-DtF; MRC;

   Abstract : Recently, cooperative communication has gained significant interest due to the fact that it exploits spatial diversity and provides capacity/performance gain over conventional single- input single-output (SISO) systems. A mobile node with single antenna can cooperate with a nearby mobile node having single antenna in multi-user environment to create the effect of virtual multiple antenna system. READ MORE

6. 20. COOPERATIVE COMMUNICATION TECHNIQUES IN WIRELESS NETWORKS (ANALYSIS WITH VARIABLE RELAY POSITIONING)

   University essay from Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

   Author : Danna Nigatu Mitiku; Onwuli Chinedu Lawrence; [2010]
   Keywords : Amplify-and-Forward; Bit-Error-Rate; Cooperative Communications; Decode and Forward; Performance Analysis; Signal-to-Noise-Ratio; Wireless Networks;

   Abstract : Signal transmission in Wireless Networks suffers considerably from many impairments, one of which is channel fading due to multipath propagation. Cooperative communication is a technique which could be employed to mitigate the effects of channel fading by exploiting diversity gain achieved via cooperation between nodes and relays. READ MORE