Earticle

초록

영어

In multimedia transition systems, data usually is divided into levels according to their different importance. For these systems, unequal error protection (UEP) techniques are the powerful methods to guarantee lower BER for the more important classes. Puncturing patterns are very important for turbo codes to produce different code rates. Also, different puncturing patterns can give different BER distributions so that UEP can be obtained. In this paper we will study the affection of puncturing pattern to the BER distribution and present a new scheme of designing the puncturing patterns for turbo codes so that the strong unequal error protection is obtained. In this scheme the puncturing is only carried on the two parity check sequences and an idea of “gradually sparsing” is employed. Simulation results show that, compared with other puncturing schemes, this scheme can provide strong error protection for some bits without apparent degradation for other bits.

목차

Abstract
 1. Introduction
 2. Design of Puncturing Patterns
  2.1. The Idea of “Gradually Sparsing”
  2.2. Design Procedures of Puncturing Pattern
  2.3. Example
 3. Simulation Results and Comparisons with Other References
 4. Conclusion
 References

키워드

저자

• Shao Xia [ First author, Department of Information Engineering, North China University of Water Resources and Electric Power, Zhengzhou, China ]
• Zhang Weidang [ School of Information Engineering, Zhengzhou University, Zhengzhou, China ] Corresponding Author

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  International Journal of Multimedia and Ubiquitous Engineering

• 간기

  월간

• pISSN

  1975-0080

• 수록기간

  2008~2016

• 등재여부

  SCOPUS

• 십진분류

  KDC 505 DDC 605