Sökning: "Amplify-and-forward"

Visar resultat 1 - 5 av 16 uppsatser innehållade ordet Amplify-and-forward.

  1. 1. Adaptive Modulation Coding Scheme in Amplify and Forward Relay Networks

    Master-uppsats, Blekinge Tekniska Högskola/Institutionen för datavetenskap

    Författare :Nirnay Reddy Nallavelli; Sushma Swaraj Chilupuri; [2022]
    Nyckelord :Adaptive Modulation; Modulation and Coding Schemes; Amplify and Forward; Signal to Noise Ratio; Nakagami-m Distribution.;

    Sammanfattning : Wireless communications have become an essential part of our daily life. Despite the fact that wireless networks are simple to set up and deploy, the channel conditionsin wireless networks are susceptible to fading and attenuation, thereby reducing the transmission efficiency and reliability. LÄS MER

  3. 2. Physical Layer Algorithms for Intrabody Nano-Communications

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Anders Enqvist; [2018]
    Nyckelord :;

    Sammanfattning : In this thesis we develop a mathematical model of the physical layerfor an in-body nano-machine (NM) communication. The purpose isfinding what modulation and detection schemes are suitable for applicationin the body and discovering what factors limit the feasiblecommunication distance. LÄS MER

  4. 3. Performance Analysis of a MIMO Cognitive Cooperative Radio Network with Multiple AF Relays

    Master-uppsats, Blekinge Tekniska Högskola/Institutionen för tillämpad signalbehandling

    Författare :Advaita Advaita; Mani Meghala Gali; [2016]
    Nyckelord :Cognitive radio; Cooperative communications; Space time coding; MIMO systems; Outage probability;

    Sammanfattning : 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. LÄS MER

  5. 4. Performance Analysis of a Cooperative Communication Network Over κ - μ Shadowed Fading for Different Relaying Protocols

    Master-uppsats, Blekinge Tekniska Högskola/Institutionen för tillämpad signalbehandling

    Författare :Alekhya Kodide; [2016]
    Nyckelord :Cooperative communications; κ−µ shadowed fading; relaying protocols; outage probability;

    Sammanfattning : With the fast development of today’s multimedia services, engineers face a huge hurdle that is, the overwhelming need of highly reliable communication over long distances. Cooperative communication is a novel concept which tackles this problem effectively. LÄS MER

  7. 5. Performance Analysis of Piecewise-and-Forward Relay Network on Rayleigh Fading Channel

    Master-uppsats, Blekinge Tekniska Högskola/Institutionen för tillämpad signalbehandling

    Författare :Farnaz Gharari; [2015]
    Nyckelord :Cooperative communications; Relay Networks; Rayleigh channels; Radio communication Protocols; Master of Science Programme in Electrical Engineering with emphasis on Signal Processing Masterprogram i Elektroteknik med inriktning mot signalbehandling;

    Sammanfattning : The rapid changes and developments in cellular and wireless networks aim to provide more reliable communications with high data rate transmission. So far, one solution which is being considered for improving the reliability and eciency of mobile communications is cooperative communications. LÄS MER