J. Yao
National Taiwan University, Taipei, Taipei, Taiwan

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Publications (2)0 Total impact

  • Source
    Conference Proceeding: DFEC: Dynamic Forward Error Control for DVB-H
    Jason Yao, Wei-Feng Huang, Ming-Syan Chen
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    ABSTRACT: DVB-H is a terrestrial digital TV standard that allows user to move freely when receiving signals. Additional Reed-Solomon codes are also included as an option to cope with higher channel error rate in mobile environment. However, it is designed with fix-valued link layer parameters, such as coding rates and error rates. In mobile networks, channel conditions change from time to time, thus code rates that behave well in one case may become inadequate in another. On the other hand, to implement static and highly protective codes results in low throughput. In this paper, we propose dynamic forward error control scheme (DFEC) that adapts to varying channel conditions. Depending on the content carried, DFEC provides different schemes for more efficient utilization of channel capacities. Simulations show that it achieves a better throughput, which could also translate to more power saving for the system
    Sensor Networks, Ubiquitous, and Trustworthy Computing, 2006. IEEE International Conference on; 02/2006
  • Source
    Conference Proceeding: IP datacasting and channel error handling with DVB-H
    J. Yao, Weifeng Huang, Ming-Syan Chen
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    ABSTRACT: DVB-H is a terrestrial digital TV standard which consumes less power and allow user to move freely when receiving signals. Its deployment also signifies the convergence between broadcast network and data networks as both video signals and other data programs are transmitted in a shared media. In this paper we discuss the channel error problems under different scenarios of this convergence. Partial solutions, such as enhanced forward error correction were provided by the standard but other aspects still need further exploration. We present some early results and discuss possible directions in the future.
    Emerging Information Technology Conference, 2005.; 09/2005

Institutions

  • 2005–2006
    • National Taiwan University
      • Graduate Institute of Communication Engineering
      Taipei, Taipei, Taiwan
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