Essays about: "Decode-and-Forward Relays"

Showing result 6 - 10 of 14 essays containing the words Decode-and-Forward Relays.

1. 6. 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. 7. DIFFERENTIAL CODE SHIFTED REFERENCE IMPULSE-BASED COOPERATIVE UWB COMMUNICATION SYSTEM

   University essay from Blekinge Tekniska Högskola/Institutionen för datalogi och datorsystemteknik

   Author : Shoaib Amjad; Rohail Khan Malhi; Muhammad Burhan; [2013]
   Keywords : Bit error rate; Cooperative system; Differential code shift Reference and Ultra wide band communication.;

   Abstract : Cooperative Impulse Response – Ultra Wideband (IR-UWB) communication is a radio technology very popular for short range communication systems as it enables single-antenna mobiles in a multi-user environment to share their antennas by creating virtual MIMO to achieve transmit diversity. In order to improve the cooperative IR-UWB system performance, we are going to use Differential Code Shifted Reference (DCSR). READ MORE

4. 8. 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

5. 9. Spectrum Sensing Techniques for 2-hop Cooperative Cognitive Radio Networks : Comparative Analysis

   University essay from Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

   Author : Atti Ur Rehman; Muhammad Asif; [2012]
   Keywords : Cognitive Radio; MIMO; Cooperative Communication; OSTBC; Energy Detection; Matched Filter Detetction; Cyclostationary Feature detection; Fuzzy Logic spectrum detection;

   Abstract : Spectrum sensing is an important aspect of cognitive radio systems. In order to efficiently utilize the spectrum, the role of spectrum sensing is essential in cognitive radio networks. READ MORE

6. 10. APPLYING DISTRIBUTED ORTHOGONAL SPACE TIME BLOCK CODING IN COOPERATIVE COMMUNICATION NETWORKS

   University essay from Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

   Author : James Adu Ansere; Odion Ehimiaghe; [2012]
   Keywords : Decode and Forward; BER; DOSTBC; Cooperative communications;

   Abstract : In this research, we investigate cooperative spectrum sensing using distributed orthogonal space time block coding (DOSTBC). Multiple antennas are introduced at the transmitter and the receiver to achieve higher cooperative diversity in the cooperative wireless (CW) networks. READ MORE