Sökning: "Long term channel prediction"

Hittade 3 avhandlingar innehållade orden Long term channel prediction.

  1. 1. Design Aspects of Coordinated Multipoint Transmission : A Study of Channel Predictions, Resource Allocation, User Grouping and Robust Linear Precoding for Coherent Joint Transmission

    Författare :Rikke Apelfröjd; Mikael Sternad; Anders Ahlén; Antti Tölli; Uppsala universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Network MIMO; Centralized CoMP; Robust beamforming with imperfect CSI; Limited backhaul; Linear predictions of OFDM channels; Kalman filters; Predictor antennas; Long term channel prediction; Local resource allocation and user grouping; Electrical Engineering with specialization in Signal Processing; Elektroteknik med inriktning mot signalbehandling;

    Sammanfattning : Shadowed areas and interference at cell borders pose great challenges for future wireless broadband systems. Coordinated Multipoint (CoMP) coherent joint transmission has shown the potential to overcome these challenges by turning harmful interference into useful signal power. LÄS MER

  3. 2. Time and inequality - A study of individual preferences

    Författare :Hjördis Hardardottir; Nationalekonomiska institutionen; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Behavioral economics; Experimental economics; Individual preferences; Time preferences; Social preferences; income inequality; Health inequality;

    Sammanfattning : This thesis consists of three papers that study individual preferences. The focus of the first two papers is on time preferences. In the third paper, preferences regarding how inequality in health and income should be defined are elicited. LÄS MER

  4. 3. Representation and diurnal variation of upper tropospheric humidity in observations and models

    Författare :Ajil Kottayil; Byung-Ju Sohn; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Rymdteknik; Space Technology;

    Sammanfattning : The role of water vapour is manifold in its climate regulation of the Earth system. Most important of all despite its low concentration, is the role it plays in the upper troposphere. LÄS MER