Title :
Video session handoff between WLANs
Author :
de Castro Monteiro, Claudio ; De Lira Gondim, Paulo Roberto ; de Miranda Rios, Vinicius ; Coelho, Alex ; Martins, Stéphany Moraes
Author_Institution :
Comput. Dept., IFTO - Fed. Inst. of Educ., Sci. & Technol. of Tocantins, Palmas, Brazil
Abstract :
Handoff in a distributed IEEE 802.11 Wireless LAN network is a source of significant amount of problems on the video transmission environment. The visual quality of video streaming applications is lowered when stations are in handoff status. In this paper we introduce an architecture of a session proxy (SP), which tries to preserve the quality of the streaming video upon each handoff between access points. We have evaluated thresholds of RSSI and Loss Frame Rate (LFR) for deciding the moment when the handoff process shall begin. Our solution performance was evaluated in a testbed implementation for MPEG-4 video-on-demand with one video server (VLS) and two FreeBSD based access points supporting Mobile IP, DHCP Server and IAPP approach.
Keywords :
telecommunication standards; video on demand; video servers; video streaming; wireless LAN; DHCP server; IEEE 802.11; MPEG-4 video-on-demand; loss frame rate; mobile IP; received signal strength indicator; session proxy; video server; video session handoff; video streaming; wireless LAN; Access protocols; Computer networks; Distributed computing; Informatics; Information systems; MPEG 4 Standard; Streaming media; Testing; Wireless LAN; Wireless networks; 802.11; Proxy; RSSI; RTSP; Video;
Conference_Titel :
Advanced Communication Technology (ICACT), 2010 The 12th International Conference on
Conference_Location :
Phoenix Park
Print_ISBN :
978-1-4244-5427-3
