Title :
Stored media synchronization based on buffer occupancy in PHS
Author :
Kato, Masami ; Usui, Noriyoshi ; Tasaka, Shuji
Author_Institution :
Hypermedia Res. Centre, Sanyo Electr. Co. Ltd., Gifu, Japan
Abstract :
This paper proposes a scheme for synchronization of stored video and audio streams in the Personal Handy phone System (PHS). A video stream of H.263 is transmitted over a PHS channel with ARQ control, while an audio stream of 32 kbit/s ADPCM is sent on another channel without any control. In order to preserve the temporal constraints within the video stream as well as the relationship between the video and audio streams, we adopt a new control scheme which modifies the target output time according to the amount of video data in the receive buffer. Through simulation we assess the characteristics of this scheme in both random and burst error environments and confirm the effectiveness of the scheme
Keywords :
audio coding; automatic repeat request; buffer storage; coding errors; differential pulse code modulation; error statistics; land mobile radio; radiotelephony; synchronisation; telecommunication channels; video coding; visual communication; 32 kbit/s; ADPCM; ARQ control; H.263; PHS channel; Personal Handy phone System; buffer occupancy; burst error; control scheme; random error; receive buffer; simulation; stored audio stream; stored media synchronization; stored video stream; target output time; temporal constraints; Automatic repeat request; Buffer storage; Discussion forums; Error correction; Error correction codes; Mobile communication; Pulse modulation; Speech; Streaming media; Video coding;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 1997. Waves of the Year 2000. PIMRC '97., The 8th IEEE International Symposium on
Conference_Location :
Helsinki
Print_ISBN :
0-7803-3871-5
DOI :
10.1109/PIMRC.1997.627046
