Essays about: "Differential Beam-Forming"

Found 2 essays containing the words Differential Beam-Forming.

  1. 1. Beam-Forming-Aware Link-Adaptation for Differential Beam-Forming in an LTE FDD System

    University essay from Linköpings universitet/Kommunikationssystem

    Author : Mikael Karlsson; [2016]
    Keywords : Beam-Forming-Aware; Link-Adaptation; Differential Beam-Forming; LTE;

    Abstract : The ability for base stations to be able to beam-form their signals, directing the signal energy to specific users, is a topic of research that has been heavily studied during the last decades. The beam-forming technique aims to increase the signal-to-interference-and-noise-ratio of the user and, consequently, increase the capacity and coverage of the communication system. READ MORE

  3. 2. Differential Beam-Forming Using Two-Dimensional Antenna Arrays in an LTE FDD System

    University essay from Linköpings universitet/Kommunikationssystem; Linköpings universitet/Tekniska fakulteten

    Author : Fredrik Stenmark; [2015]
    Keywords : Antenna Array; Beam Focusing; Beam-Forming; Feedback Process; Long Term Evolution; Precoding;

    Abstract : Basstationer med flera antenner kan aktivt styra signalenergi mot en mottagare med hjälp av lobformning, vilket ger högre datatakt och lägre strömförbrukning än med en enda antenn. Lobformning kräver dock att kanalen skattas till varje antenn och i ett FDD-system måste denna skattning återkopplas till basstationen från mottagaren, vilket innebär en opraktiskt stor overhead, speciellt när loberna blir smalare. READ MORE