Control Based Mobile Ad-hoc Networks For Video Communications

Published

May 1, 2006

Author(s)

Hamid Gharavi

Abstract

This paper presents a feedback control scheme for transmission of video signals over mobile ad-hoc channels. The scheme is a combination of cross-layer (local) feedback and receiver feedback. The receiver feedback is based on the real time transport control protocol (RTCP), which is designed to provide an end-to-end feedback assessment of multihop transmission channels by tracking packet receptions in synchronization with the video frame rate. The control packet carries an overlapping bit-pattern in order to cope with losses on the reverse link. Assisting the receiver feedback is a cross-layer feedback, which aims at controlling the packet transmission flow with respect to the ad-hoc routing characteristics. The combined feedback scheme, together with a bitrate control and packet-loss compensation strategy, have been shown to be very effective in improving the ad-hoc network reliability for transmission of RTP/UDP/IP video packets over multihop fading channels.

Citation

IEEE Transactions on Consumer Electronics

Volume

52

Issue

2

Pub Type

Journals

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Keywords

ad-hoc video, MANET, multihop, RTP, feedback control, cross-layer, CSMA/CA, H.264, IEEE 802.11

Citation

Gharavi, H. (2006), Control Based Mobile Ad-hoc Networks For Video Communications, IEEE Transactions on Consumer Electronics, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=50823 (Accessed April 18, 2024)