Title :
Design and implementation of reliable protocol for video data produced in real time manner
Author :
Hasegawa, T. ; Hasegawa, T. ; Kato, Toshihiko
Author_Institution :
KDD R&D Labs. Inc., Saitama, Japan
Abstract :
Most current systems which play video data produced remotely in a real time manner transfer video packets without retransmission. However, corrupted packets can be retransmitted if the time of playing is delayed for the fixed amount of time. This paper proposes a new reliable real time protocol, based on SSCOP for ATM networks, which retransmits the only corrupted packets which reach the receiver before the deadline. It also describes the implementation method of the proposed protocol in the UNIX kernel using STREAMS mechanism and its performance evaluation. This protocol can be applied to vic (videoconference tool) application and reduces the packet loss rate to less than 1/100
Keywords :
Unix; asynchronous transfer mode; operating system kernels; packet switching; performance evaluation; protocols; real-time systems; teleconferencing; visual communication; ATM networks; SSCOP; STREAMS mechanism; UNIX kernel; corrupted packets; delay; packet loss rate; performance evaluation; real time protocol; reliable protocol; vic; video data; video packet transfer; videoconference tool; Cost accounting; Delay effects; Electronic switching systems; Information retrieval; Laboratories; Prefetching; Protocols; Real time systems; Research and development; Timing;
Conference_Titel :
Real-Time Computing Systems and Applications, 1998. Proceedings. Fifth International Conference on
Conference_Location :
Hiroshima
Print_ISBN :
0-8186-9209-X
DOI :
10.1109/RTCSA.1998.726418
