Sökning: "channel coding"

Visar resultat 6 - 10 av 155 avhandlingar innehållade orden channel coding.

  1. 6. Source and Channel Coding for Audiovisual Communication Systems

    Författare :Moo Young Kim; Bastiaan Kleijn; Richard Heusdens; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Telekommunikation; Information theory; high-rate theory; source coding; channel coding; quantization; Telekommunikation; Telecommunication; Telekommunikation;

    Sammanfattning : Topics in source and channel coding for audiovisual communication systems are studied. The goal of source coding is to represent a source with the lowest possible rate to achieve a particular distortion, or with the lowest possible distortion at a given rate. Channel coding adds redundancy to quantized source information to recover channel errors. LÄS MER

  3. 7. Source and Channel Coding for Compressed Sensing and Control

    Författare :Amirpasha Shirazinia; Mikael Skoglund; Pier Luigi Dragotti; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Source coding; quantization; channel coding; compressed sensing; control; Electrical Engineering; Elektro- och systemteknik;

    Sammanfattning : Rapid advances in sensor technologies have fueled massive torrents of data streaming across networks. Such large volume of information, indeed, restricts the operational performance of data processing, causing inefficiency in sensing, computation, communication and control. LÄS MER

  4. 8. Soft decoding vector quantization for noisy channels

    Författare :Mikael Skoglund; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; combined source-channel coding; vector quantization; source coding; channel coding; image coding;

    Sammanfattning : .... LÄS MER

  5. 9. Interframe quantization of spectrum parameters in speech coding

    Författare :Jan Lindén; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; spectrum coding; memory vector quantization; interframe coding; speech coding; channel optimized vector quantization; linear predictive vector quantization; finite state vector quantization; line spectrum frequencies;

    Sammanfattning : .... LÄS MER

  7. 10. Coding and Modulation for Wideband CDMA

    Författare :Ola Wintzell; Institutionen för elektro- och informationsteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; turbo codes.; Electronics and Electrical technology; channel coding; impulse radio; coordinated transmission; pre-coding; cellular radio capacity; Direct sequence code division multiple access DS-CDMA ; pulse position hopped code division multiple access PPH-CDMA ; Elektronik och elektroteknik; Telecommunication engineering; Telekommunikationsteknik;

    Sammanfattning : Wideband CDMA (Code Division Multiple Access) is one of the key technologies for future mobile communication systems. This thesis studies various coding and transmission methods for wideband CDMA communications. In a cellular environment, the system performance depends on the interference from other cells. LÄS MER