Cross-Layer Mechanism for Efficient Video Transmission over Mobile Ad Hoc Networks

TitleCross-Layer Mechanism for Efficient Video Transmission over Mobile Ad Hoc Networks
Publication TypeConference Paper
Year of Publication2011
AuthorsBouras, C, Kapoulas, V, Gkamas, A, Kioumourtzis, G, Adam, G, Tavoularis, N
Conference NameThe Third International Workshop on Cross Layer Design, Rennes, France
Date PublishedNovember 30 – December
Abstract

Abstract- Mobile ad hoc networks (MANETs) are becoming
more essential to wireless communications due to growing
popularity of mobile devices. However, MANETs do not seem to
effectively support multimedia applications and especially video
transmission. This paper presents a cross-layer mechanism for
efficient video transmission over this type of networks. The
proposed mechanism consists of a priority-scheduling algorithm,
at the network layer, and the use of the IEEE 802.11e standard at
the MAC layer. The priority-scheduling algorithm takes into
account the frame type of the MPEG-4 video file in order to
provide different priorities to the most important video packets.
At the MAC layer, the IEEE 802.11e protocol assigns the highest
priority to video applications to reduce delay and packets losses
due to other competing traffic. This design is easily implemented
in any ad hoc wireless network as an extension on the AODV
MANET routing protocol. Simulation results conducted with the
network simulator ns-2 show the advantages of the proposed
design.

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