Sökning: "Channel capacity"

Visar resultat 21 - 25 av 258 avhandlingar innehållade orden Channel capacity.

  1. 21. Analysis of Radio Channel Measurements Using Multiple Base Stations

    Författare :Niklas Jaldén; Björn Ottersten; Bo Göransson; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Channel Modellin; Telecommunication; Telekommunikation;

    Sammanfattning : Future wireless communication systems will utilize the spatial properties of the wireless channel to improve the spectral efficiency and thus increase capacity. This is realized by deploying multiple antennas at both the transmitter and receiver. LÄS MER

  3. 22. Coding for the Wiretap Channel

    Författare :Mattias Andersson; Mikael Skoglund; Michael Lentmaier; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Telecommunication; Telekommunikation;

    Sammanfattning : We consider code design for Wyner’s wiretap channel. Optimal coding schemes for this channel require an overall code that is capacity achieving for the main channel, partitioned into smaller subcodes, all of which are capacity achieving for the wiretapper’s channel. LÄS MER

  4. 23. Improvement Potential and Equalization Circuit Solutions for Multi-drop DRAM Memory Buses

    Författare :Henrik Fredriksson; Christer Svensson; Georg Braun; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Equalization; High speed IO; memory capacity; multi-drop buses; communication capacity; ASIC design; Electronics; Elektronik;

    Sammanfattning : Digital computers have changed human society in a profound way over the last 50 years. Key properties that contribute to the success of the computer are flexible programmability and fast access to large amounts of data and instructions. LÄS MER

  5. 24. Coding Schemes for Relay Networks

    Författare :Majid Nasiri Khormuji; Mikael Skoglund; Gerhard Kramer; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Relay networks; capacity; decode-and-forward; amplify-andforward; compress-and-forward; nonlinear relaying; noisy network coding; hybrid relaying; Telecommunication; Telekommunikation;

    Sammanfattning : Cooperative communications by pooling available resources—for example, power and bandwidth—across the network, is a distributed solution for providing robust wireless transmission. Motivated by contemporary applications in multi-hop transmission and ad hoc networks, the classical three-node relay channel (RC) consisting of a source–destination pair and a relay node has received a renewed attention. LÄS MER

  7. 25. MIMO Channels - Measurements and Analysis

    Författare :Peter Almers; Institutionen för elektro- och informationsteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Signalbehandling; Telecommunication engineering; Telekommunikationsteknik; Electrical engineering; Elektroteknik; Signal processing; Teknik; Capacity; Technological sciences; Spatial-multiplexing; Diversity; Measurements; MIMO; Wireless; Communications;

    Sammanfattning : Providing increased transmission speed, quality and an efficient spectrum utilization is crucial for high speed wireless services of today and the future. This thesis is a collection of papers that address an important step in that direction -- the utilization of the spatial domain of the wireless channel. LÄS MER