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    33 Simulation of The DVB H Channel Coding and Transmission in MATLAB

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    safa
    This document summarizes a project that implemented the channel coding of DVB-H in MATLAB. It describes the development of functions that simulate each block of the DVB-H channel encoder. The simulation results in characteristics of the bit error ratio (BER) before and after Viterbi decoding. The BER dependence on carrier-to-noise ratio is graphically shown and discussed. Key requirements included MATLAB R2010 and a minimum Intel Pentium IV processor.

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    33 Simulation of The DVB H Channel Coding and Transmission in MATLAB

    Uploaded by

    safa
    60 views3 pages
    This document summarizes a project that implemented the channel coding of DVB-H in MATLAB. It describes the development of functions that simulate each block of the DVB-H channel encoder. The simulation results in characteristics of the bit error ratio (BER) before and after Viterbi decoding. The BER dependence on carrier-to-noise ratio is graphically shown and discussed. Key requirements included MATLAB R2010 and a minimum Intel Pentium IV processor.

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    282631174 33 Simulation of the DVB H Channel Coding and Transmission in MATLAB

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    This document summarizes a project that implemented the channel coding of DVB-H in MATLAB. It describes the development of functions that simulate each block of the DVB-H channel encoder. The simulation results in characteristics of the bit error ratio (BER) before and after Viterbi decoding. The BER dependence on carrier-to-noise ratio is graphically shown and discussed. Key requirements included MATLAB R2010 and a minimum Intel Pentium IV processor.

    Copyright:

    © All Rights Reserved
    Download as DOCX, PDF, TXT or read online from Scribd
    Download as docx, pdf, or txt
    60 views3 pages

    33 Simulation of The DVB H Channel Coding and Transmission in MATLAB

    Uploaded by

    safa
    This document summarizes a project that implemented the channel coding of DVB-H in MATLAB. It describes the development of functions that simulate each block of the DVB-H channel encoder. The simulation results in characteristics of the bit error ratio (BER) before and after Viterbi decoding. The BER dependence on carrier-to-noise ratio is graphically shown and discussed. Key requirements included MATLAB R2010 and a minimum Intel Pentium IV processor.

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    © All Rights Reserved
    Download as DOCX, PDF, TXT or read online from Scribd
    Download as docx, pdf, or txt
    of 3

    Simulation of the DVB-H Channel Coding and Transmission in

    MATLAB
    ABSTRACT:

    This Project deals with the Matlab implementation of the DVB-H (Digital Video Broadcasting to
    Handhelds) channel coding in AWGN (Additive White Gaussian Noise) transmission channel.
    Developed application structure and its functions are described. Channel encoder and decoder
    were implemented in Matlab as it is specified in the DVB-H standard. Created application can
    evaluate and shows two types of BER (Bit Error Ratio) - BER before Viterbi decoding and BER
    after Viterbi decoding. The OFDM (Orthogonal Frequency Division Multiplexing) modulation was
    not implemented yet. Finally, obtained results are evaluated and discussed.

    Key-Words: Digital Video Broadcasting to Handhelds, FEC, channel coding, channel decoding,
    interleaving, BER.

    INTRODUCTION:

    The DVB-H (Handheld) is a technical specification for bringing broadcast services to handheld
    receivers and it was formally adopted as ETSI standard EN 302 304 in November 2004. DVB-H
    has been developed from the DVB-T (Terrestrial) standard that is used in many countries mainly
    around the Europe. The documents for the physical layer were ratified in 2004 and the upper
    layers were defined in 2005. It is an extension of DVB-T with some backwards compatibility, i.e.
    it can share the same transmission multiplex with DVB-T services.

    This compatibility is an important feature of DVB-H, as many DVB-T systems have already been
    launched in Europe and all over the world. This paper contains results of recent development of
    Matlab application which allows simulation of the DVBH channel coding and decoding in AWGN
    channel. The simulation results are characteristics of the BER before Viterbi decoding and BER
    after Viterbi decoding. Finally, dependence of the BER on the C/N (Carrier-to- Noise Ratio)
    before and after Viterbi decoding are graphically expressed, compared and discussed.

    BLOCK DIAGRAM:

    VEDLABS, #112, Oxford Towers, Old airport Road, Kodihalli, Bangalore-08 Page 1
    www.vedlabs.com , Email id: projects@vedlabs.com, Ph: 080-42040494.
    Fig. 1. Block diagram of the channel coder of the DVB-H.

    To create an appropriate algorithm which can simulate properties of the DVB-H channel coding,
    specified functions from Matlab Communication toolbox were used, as they are optimized and
    simple to implement. The developed application is divided into several independent functions.
    Each function represents one block of the DVB-H system channel encoder, as it can be seen in
    the Fig. 1.

    HARDWARE AND SOFTWARE REQUIREMENTS:

    Software Requirement Specification:

     Operating System:  Windows XP with SP2

     Tool: MATLAB R2010, Version: 7.10.0

    Hardware Requirement specification:                 

     Minimum Intel Pentium IV Processor

     Primary memory: 2 GB RAM,

    VEDLABS, #112, Oxford Towers, Old airport Road, Kodihalli, Bangalore-08 Page 2
    www.vedlabs.com , Email id: projects@vedlabs.com, Ph: 080-42040494.
    REFERENCES:

    [1] ETSI, Technical Specification 102 377, Digital Video Broadcasting (DVB); DVB-H
    Implementation Guidelines, v.1.4.1, 2009.

    [2] DVB-H Fact Sheet (2009-04). Broadcasting to Handhelds. 2 pages. [Online] Cited 2009-04-14.
    Available at: http://dvb-h.org/PDF/dvbh-fact-sheet.0409.pdf.

    [3] POLÁK, L. DVB-H and DVB-SH Digital TV Broadcasting Standards and their Characteristics
    Comparison. In Sborník semináře o řešení doktorského projektu Grantové agentury České
    republiky č. 102/08/H027. Brno (Czech Republic), 2009, pp. 40-43.

    [4] BORKO, A., SYED, A. Handbook of Mobile Broadcasting, DVB-H, DMB, ISDB-T and MEDIAFLO.
    Taylor & Francis Group, LCC, 2008, 726 p., ISBN 978–1-4200–5386-9.

    [5] COLLINS, G. W. Fundamentals of Digital Television Transmission. New Jersey: John Wiley &
    Sons, Inc., 2001, 267 p., ISBN 0-47- 39199-9.

    VEDLABS, #112, Oxford Towers, Old airport Road, Kodihalli, Bangalore-08 Page 3
    www.vedlabs.com , Email id: projects@vedlabs.com, Ph: 080-42040494.

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