Essays about: "fading parameters"

Showing result 21 - 25 of 39 essays containing the words fading parameters.

  1. 21. Radio Resource Management Algorithms for D2D Communications With Limited Channel State Information

    University essay from KTH/Skolan för informations- och kommunikationsteknik (ICT)

    Author : Peiyue Zhao; [2015]
    Keywords : ;

    Abstract : Network assisted Device-to-Device (D2D) communication has the potential benefits of increasing system capacity, energy efficiency and achievable peak rates while reducing the end-to-end latency. To realize these gains, recent works have proposed power control (PC) and resource allocation (RA) schemes that show near optimal performance in terms of spectral or energy efficiency. READ MORE

  3. 22. A Diagnostic Tool for the Causes of Packet Corruption in Wireless Sensor Networks

    University essay from Mittuniversitetet/Avdelningen för informations- och kommunikationssystem

    Author : Wenxuan Jiang; [2015]
    Keywords : Wireless Sensor Network; Packets Corruption; RSSI; Logistic Regression;

    Abstract : The two main causes of packet corruption in wireless sensor network are multipath fading and WiFi interference. Identifying the cause of the corruption can be used to improve the reliability of the transmission. If the corruption is caused by WiFi interference, the network could change the channel to a free one. READ MORE

  4. 23. 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

  5. 24. ANFIS BASED OPPURTUNISTIC POWER CONTROL FOR COGNITIVE RADIO IN SPECTRUM SHARING

    University essay from Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

    Author : Joyraj Chakraborty; Venkata Krishna chaithanya varma. Jampana; [2013]
    Keywords : ANFIS; Fuzzy inference system; spectrum sharing;

    Abstract : Cognitive radio is a intelligent technology that helps in resolving the issue of spectrum scarcity. In a spectrum sharing network, where secondary user can communicate simultaneously along with the primary user in the same frequency band, one of the challenges in cognitive radio is to obtain balance between two conflicting goals that are to minimize the interference to the primary users and to improve the performance of the secondary user. READ MORE

  6. 25. Maximum Capacity Antenna Design for an Indoor MIMO UWB Communication System

    University essay from Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

    Author : Ran Liu; Hao Liu; [2012]
    Keywords : MIMO; UWB; Antenna Design; In-door Communication and Capacity Analysis;

    Abstract : Ultra-wideband (UWB) offers a high data rate transmission, however it only can be used in short distance communication due to its low power restricted by regulations, therefore it is applicable for an indoor scenario. Within an enclosed (indoor) scenario, there exist many possible multipaths of electromagnetic waves which lead to an effect known as fading [Big07]. READ MORE