Title :
Packet loss concealment in a secure voice over IP environment
Author :
White, Christopher M. ; Teague, Keith A. ; Daniel, Edward J.
Author_Institution :
Speech & Audio Commun. Lab., Oklahoma State Univ., Stillwater, OK, USA
Abstract :
Quality of service (QoS) in a narrowband secure voice over data over IP (SVoIP) system is impacted by changes in network behavior, particularly packet loss. Several methods exist for mitigating these effects. This paper analyzes the performance of packet loss concealment using forward error correction, frame replication, adaptive playout buffering, and dynamic buffer selection in a SVoIP system. These methods are shown to improve to varying degrees overall QoS.
Keywords :
Internet telephony; forward error correction; quality of service; telecommunication security; PLC; QoS; SVoIP; adaptive playout buffer; dynamic buffer selection; forward error correction; frame replication; packet loss concealment; quality of service; secure voice over IP; Counting circuits; Cryptography; Delay effects; Forward error correction; Internet telephony; Narrowband; Performance loss; Propagation losses; Quality of service; Speech;
Conference_Titel :
Signals, Systems and Computers, 2004. Conference Record of the Thirty-Eighth Asilomar Conference on
Print_ISBN :
0-7803-8622-1
DOI :
10.1109/ACSSC.2004.1399165
