Earticle

초록

영어

In Voice over Internet Protocol (VoIP) system, the speech signal is degraded when passed through the network layers. The speech signal is processed through the best effort policy based IP network, which leads to the network degradations including delay, packet loss and jitter. The packet loss is the major issue of the degradation in the VoIP signal quality; even a single lost packet may generate audible distortion in the decoded speech signal. In addition to these network degradations, the quality of the speech signal is also affected by the environmental noises and coder distortions. The signal quality of the VoIP system is improved through the interleaving technique. The performance of the system is evaluated for various types of noises at different network conditions. The performance of the enhanced VoIP signal is evaluated using wideband extension-perceptual evaluation of speech quality (WB-PESQ) measurement for wideband signal.

목차

Abstract
 1. Introduction
 2. Related Work
 3. Interleaving
 4. IP Network Modeling
  4.1. VoIP Simulations
 5. Results & Discussion
  5.1. Wideband VoIP System without Background Noise
  5.2. Wideband VoIP System with Background Noise
  5.3. Discussion
 6. Conclusion
 References

키워드

저자

• Harjit Pal Singh [ Dept. of Physics, Dr. B.R. Ambedkar National Institute of Technology, Jalandhar, India ]
• Sarabjeet Singh [ Dept. of Physics, Dr. B.R. Ambedkar National Institute of Technology, Jalandhar, India ]
• Jasvir Singh [ Dept. of Electronics Technology, Guru Nanak Dev University, Amritsar, India ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  International Journal of Advanced Science and Technology

• 간기

  월간

• pISSN

  2005-4238

• 수록기간

  2008~2016

• 십진분류

  KDC 505 DDC 605