Title :
Dynamic adjustment packet control for video communications over ad-hoc networks
Author :
Gharavi, H. ; Ban, K.
Author_Institution :
Nat. Inst. of Stand. & Technol., Gaithersburg, MD, USA
Abstract :
This paper is concerned with transporting video information via multihop mobile ad-hoc channels. The major problem with transmitting real-time video information over these channels is the issue of link reliability. To improve the quality of the video reception we propose a cross layer feedback control mechanism that can allow the application layer to adapt itself to a dynamically changing network topology. We also present packet transmission strategies capable of recovering video signals under long bursts of packet drops, typical of a route change condition. This feedback control scheme has been developed for transmission of RTP/UDP/IP packets using the emerging H.264/AVC video-coding standard.
Keywords :
ad hoc networks; mobile radio; network topology; radio links; telecommunication channels; telecommunication control; telecommunication network reliability; telecommunication network routing; video coding; visual communication; adjustment packet control; feedback control; multihop mobile ad-hoc channels; network topology; packet transmission; video communications; video information; Ad hoc networks; Bit rate; Communication system control; Feedback control; Peer to peer computing; Spread spectrum communication; Standards development; Streaming media; Throughput; Wireless LAN;
Conference_Titel :
Communications, 2004 IEEE International Conference on
Print_ISBN :
0-7803-8533-0
DOI :
10.1109/ICC.2004.1313099
