Title :
DVoIP: Dynamic Voice-over-IP transformations for quality of service in bandwidth constrained environments
Author :
Craven, Matthew ; Le, Tuong N. ; Lardieri, Patrick
Author_Institution :
Lockheed Martin Adv. Technol. Labs., Cherry Hill, NJ
Abstract :
Voice-over-IP (VoIP) call streams suffer from poor quality when the available bandwidth drops below the minimum requirements for the call. Dynamic VoIP (DVoIP) improves quality by performing on-the-fly transformations on VoIP streams to reduce the bandwidth requirements of the call. DVoIP reduces bandwidth requirements by transcoding high-bitrate codecs to low-bandwidth ones and by aggregating the contents of multiple VoIP packets into a single DVoIP packet. With little to no increase in latency or decrease in voice quality, DVoIP can ensure zero packet loss for active calls.
Keywords :
Internet telephony; quality of service; DVoIP:; available bandwidth; bandwidth constrained environments; bandwidth requirements; dynamic voice-over-IP call streams; quality of service; transcoding; Bandwidth; Codecs; Decoding; Delay; Internet telephony; Payloads; Quality of service; Streaming media; Transcoding; Transport protocols;
Conference_Titel :
Military Communications Conference, 2008. MILCOM 2008. IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
978-1-4244-2676-8
Electronic_ISBN :
978-1-4244-2677-5
DOI :
10.1109/MILCOM.2008.4753351
