Title :
Dynamic resolution control and media synchronization of MPEG in wireless LANs
Author :
Tasaka, Shuji ; Nakanishi, Hiroyuki ; Ishibashi, Yutaka
Author_Institution :
Dept. of Electr. & Comput. Eng., Nagoya Inst. of Technol., Japan
Abstract :
This paper studies the transmission of stored MPEG video and voice over a wireless LAN. We first consider four lip synchronization schemes; two schemes interleave voice and video to form a single transport stream, and the others treat the two media as separate transport streams. In each category, one exerts synchronization control at the destination, while the other does not. In addition, we apply a dynamic resolution control of MPEG video to the two schemes with synchronization control. We have implemented those schemes on an ALTAIR wireless LAN. Comparison of the measured performance shows that heavily loaded networks need lip synchronization control and that the dynamic resolution control is effective
Keywords :
code standards; image resolution; synchronisation; telecommunication congestion control; telecommunication standards; video coding; visual communication; voice communication; wireless LAN; ALTAIR wireless LAN; congestion detection; dynamic resolution control; lip synchronization schemes; measured performance; media synchronization; stored MPEG video; stored voice; synchronization control; transport stream; video transmission; voice transmission; Bandwidth; Communication networks; Communication system control; Local area networks; Media Access Protocol; Spatial resolution; Streaming media; Traffic control; Wireless LAN; Wireless communication;
Conference_Titel :
Global Telecommunications Conference, 1997. GLOBECOM '97., IEEE
Conference_Location :
Phoenix, AZ
Print_ISBN :
0-7803-4198-8
DOI :
10.1109/GLOCOM.1997.632527
