Analysis of Voice Quality Problems of Voice Over Internet Protocol (VoIP)

Abstract

After its introduction in mid 199Os, Voice over Internet Protocol (VoIP) or IP telephony has drawn much attention. The prospect of cost savings on long distance and international toll calls, the global presence of Internet Protocol (IP), and the trend to converge data networks with voice networks have made VoIP one of the fastest growing telecom sectors. Additionally, the emergence of 3rd Generation (3G) cellular technology which offers high bandwidth will result in the convergence of the Internet and the cellular networks which will further stimulate the growth of VoIP. However, VoIP faces many problems mainly because of the nature of IP networks which were built to transport non- real-time data unlike voice. This thesis analyzes factors affecting the voice quality of VoIP. These factors are delay, jitter, packet loss, link errors, echo and Voice Activity Detection (VAD). Further, implementation suggestions to lessen the effects of these factors are presented and finally, these suggestions are analyzed.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 2003
Accession Number
ADA418298

Entities

People

  • Lutfullah Tasyumruk

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Energy and Power Technologies
  • Space

DTIC Thesaurus Topics

  • Cellular Networks
  • Communication Systems
  • Communications Protocols
  • Computer Networks
  • Detection
  • Electronic Mail
  • Internet
  • Network Protocols
  • Network Science
  • Networks
  • Packet Loss
  • Transport Protocols
  • Voice Communications
  • Voice Over Internet Protocol

Fields of Study

  • Computer science

Readers

  • Computer Networking
  • Economics