Earticle

초록

영어

In this paper, delay-limited transmission of Quasi-stationary sources over block fading channels is considered. Considering distortion outage probability as the performance measure, two source and channel coding schemes with power adaptive transmission are presented. The delay limited transmission of a quasi-stationary source over a block fading channel is from the perspective of source and channel coding design and it utilizes performance scaling laws. Because In a Quasi -stationary sources time utilization takes a major role. For that the first one is optimized for fixed rate transmission, and hence enjoys simplicity of implementation. The second one is a high performance scheme, which also benefits from optimized rate adaptation with respect to source and channel states. In high SNR regime, the performance scaling laws in terms of outage distortion exponent and asymptotic outage distortion gain are derived, where two schemes with fixed transmission power and adaptive or optimized fixed rates are considered as benchmarks for comparisons. Various analytical and numerical results are provided which demonstrate a superior performance for source and channel optimized rate and power adaptive scheme.

목차

Abstract
 1. Introduction
 2. Model System
 3. Channel Optimized Power Adaptation with Fixed Rate Source & Channel Coding
 4. Performance Evaluation
  4.1. Channel Optimized Rate Adaptation with Constant Power
  4.2. Analytical Performance Comparison
 5. Conclusion
 References

키워드

저자

• Pamarthy Chenna Rao [ Research scholar, Dept. of Instrument Technology, Andhra University ]
• M. Ramesh Patnaik [ Assistant Professor in Dept. of Instrument Technology, Andhra University ]
• A. Sathi Babu [ Assistant Professor in Dept. of ECE, SITE, Tadepalli gudem, Andhra Pradesh ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  International Journal of Signal Processing, Image Processing and Pattern Recognition

• 간기

  격월간

• pISSN

  2005-4254

• 수록기간

  2008~2016

• 십진분류

  KDC 505 DDC 605