Sökning: "Real-time coding"

Visar resultat 1 - 5 av 44 avhandlingar innehållade orden Real-time coding.

  1. 1. Adaptive Concatenated Coding for Wireless Real-Time Communications

    Författare :Elisabeth Uhlemann; Högskolan i Halmstad; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Incremental redundancy hybrid ARQ; Multiple concatenated codes; Iterative decoding; Rate compatible punctured codes; Union bounds; EXIT charts; Convergence analysis; Wireless real-time communication; Quality of service; TECHNOLOGY; TEKNIKVETENSKAP;

    Sammanfattning : The objective of this thesis is to improve the performance of real-time communication overa wireless channel, by means of specifically tailored channel coding. The deadlinedependent coding (DDC) communication protocol presented here lets the timeliness and thereliability of the delivered information constitute quality of service (QoS) parametersrequested by the application. LÄS MER

  3. 2. Sensitive Forensic DNA Analysis : Application of Pyrosequencing and Real-time PCR Quantification

    Författare :Hanna Andréasson; Marie Allen; Ulf Gyllensten; Pål Nyrén; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Genetics; forensic; sensitive DNA analysis; DNA quantification; mtDNA; Real-time PCR; Pyrosequencing; Genetik; Clinical genetics; Klinisk genetik;

    Sammanfattning : The field of forensic genetics is growing fast and the development and optimisation of more sensitive, faster and more discriminating forensic DNA analysis methods is highly important. In this thesis, an evaluation of the use of novel DNA technologies and the development of specific applications for use in forensic casework investigations are presented. LÄS MER

  4. 3. Towards flexible audio coding

    Författare :Renat Vafin; Bastiaan Kleijn; Juergen Herre; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electronics; Audio coding; multistage coding; waveform coding; parametric coding; sinusoidal coding; Elektronik; Electronics; Elektronik;

    Sammanfattning : thesis is about audio coding and improving flexibility thereof. Audio coding is used to reduce the bit rate needed to represent audio signals in digital format. When the available bit rate is low, parametric coding methods that use models to describe perceptually-important features of audio signals have shown their efficiency. LÄS MER

  5. 4. Hybrid ARQ Using Serially Concatenated Block Codes for Real-Time Communication : An Iterative Decoding Approach

    Författare :Elisabeth Uhlemann; Högskolan i Halmstad; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Real-Time Communications; Hybrid ARQ; Iterative Decoding; QoS; Deadline Dependent Coding; Telecommunication theory; Telekommunikationsteori;

    Sammanfattning : The ongoing wireless communication evolution offers improvements for industrial applications where traditional wireline solutions causes prohibitive problems in terms of cost and feasibility. Many of these new wireless applications are packet oriented and time-critical. LÄS MER

  7. 5. Embedded real-time software using TinyTimber : reactive objects in C

    Författare :Johan Eriksson; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Inbyggda system; Embedded System;

    Sammanfattning : Embedded systems are often operating under hard real-time constraints. Such systems are naturally described as time-bound reactions to external events, a point of view made manifest in the high-level programming and systems modeling language Timber. LÄS MER