• Title/Summary/Keyword: Turbo Coded T-DMB

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Propose and Performance Analysis of Turbo Coded New T-DMB System (터보부호화된 새로운 T-DMB 시스템 제안 및 성능 분석)

  • Kim, Hanjong
    • Journal of Digital Convergence
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    • v.12 no.3
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    • pp.269-275
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    • 2014
  • The DAB system was designed to provide CD quality audio and data services for fixed, portable and mobile applications with the required BER below $10^{-4}$. However for the T-DMB system with the video service of MPEG-4 stream, BER should go down $10^{-8}$ by adding FEC blocks which consist of the Reed-Solomon (RS) encoder/decoder and convolutional interleaver/deinterleaver. In this paper we propose two types of turbo coded T-DMB system without altering the puncturing procedure and puncturing vectors defined in the standard T-DMB system for compatibility. One(Type 1) can replace the existing RS code, convolutional interleaver and RCPC code by a turbo code and the other one (Type 2) can substitute the existing RCPC code by a turbo code. Simulation results show that two new turbo coded systems are able to yield considerable performance gain after just 2 iterations. Type 2 system is better than type 1 but the amount of performance improvement is small.

A Study on the Performance Improvement in T-DMB System

  • Erke, Li;Kim, Hanjong
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2009.10a
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    • pp.766-769
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    • 2009
  • In this paper we propose a new turbo coded T-DMB system that replaces the existing RS code, convolutional interleaver and RCPC code by a turbo code without altering the puncturing procedure and puncturing vectors defined in the standard T-DMB system for compatibility. Simulation results show that the new turbo coded system yields considerable performance gain after just 2 iterations.

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