Sökning: "signal relay"

Visar resultat 1 - 5 av 44 uppsatser innehållade orden signal relay.

  1. 1. Secrecy Capacity of Cooperative Transmission with Opportunistic Relaying Scheme

    Master-uppsats,

    Författare :Dhathri Pravallika Pasumarthi; [2022]
    Nyckelord :Cooperative Transmission; Opportunistic Relaying; Decode-and-Forward; Outage Probability; Secrecy Capacity; Fading.;

    Sammanfattning : The usage of wireless communication has increased over the past few years. Most wired communications are replaced by wireless communication for ease of use. Wireless communication transfers confidential information like personal information and credentials between two entities. LÄS MER

  3. 2. Distributed Relay/Replay Attacks on GNSS Signals

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

    Författare :Malte Lenhart; [2022]
    Nyckelord :Global Navigation Satellite System GNSS ; Spoofing; Relay Replay Attack; Software Defined Radio SDR ; Security; Satellitnavigeringssystem; Spoofing; Relay Replay Attack; Software Defined Radio SDR ; Säkerhet;

    Sammanfattning : In modern society, Global Navigation Satellite Systems (GNSSs) are ubiquitously relied upon by many systems, among others in critical infrastructure, for navigation and time synchronization. To overcome the prevailing vulnerable state of civilian GNSSs, many detection schemes for different attack types (i.e. LÄS MER

  4. 3. 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

  5. 4. Application of formal verification and validation on modern multi-functional signalling system

    Master-uppsats, KTH/Transportplanering

    Författare :Shamsul Arefin; [2022]
    Nyckelord :;

    Sammanfattning : Demand for rail transport is increasing day by day. Rail is popular in public transport due to punctuality, regularity, and safety. However, we hear daily that rail traffic still has many problems to solve about incidents, near misses, and signal errors. LÄS MER

  7. 5. Decode and Forward Relay Assisting Active Jamming in NOMA System

    Master-uppsats, Blekinge Tekniska Högskola/Institutionen för datavetenskap

    Författare :Lakshmikanth Akurathi; Surya Teja Reddy Chilluguri; [2022]
    Nyckelord :Physical Layer Security; Power-domain NOMA; Decode and Forward Relay; Jamming in NOMA; Nakagami-m Fading; Relay Transmission; Secrecy Performance.;

    Sammanfattning : Non-orthogonal multiple access (NOMA), with its exceptional spectrum efficiency, was thought to be a promising technology for upcoming wireless communications. Physical layer security has also been investigated to improve the security performance of the system. LÄS MER