An adaptive control scheme for real-time MPEG4 video over ad-hoc networks

Author

Liu, Zhixiong ; He, Guiming ; Liu, Zhensheng

Author_Institution

Sch. of Comptuer Sci., Wuhan Univ., China

Volume

2

fYear

2005

fDate

23-26 Sept. 2005

Firstpage

1153

Lastpage

1155

Abstract

This paper presents a performance enhancement method for real-time MPEG4 video transmission over mobile multihop ad-hoc networks by employing an adaptive sender rate control scheme. By this control scheme, the sender estimates the available channel bandwidth between the sender and receiver, and adjusts its´ output rate of MPEG4 encoder using R-D framework and frame-skip control mechanism to fit the estimated time-varying channel bandwidth. Experiment results show that video quality can be improved by employing this adaptive control scheme.

Keywords

ad hoc networks; adaptive control; bandwidth allocation; channel estimation; mobile radio; real-time systems; telecommunication control; time-varying channels; video coding; video communication; adaptive sender rate control scheme; channel bandwidth; frame-skip control mechanism; mobile multihop ad-hoc networks; performance enhancement method; real-time MPEG4 video transmission; time-varying channel bandwidth estimation; video quality; Ad hoc networks; Adaptive control; Bandwidth; Computer science; Helium; MPEG 4 Standard; Mobile computing; Peer to peer computing; Programmable control; Spread spectrum communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications, Networking and Mobile Computing, 2005. Proceedings. 2005 International Conference on

Print_ISBN

0-7803-9335-X

Type

conf

DOI

10.1109/WCNM.2005.1544257

Filename

1544257