Skip to main content
  • Research Article
  • Open access
  • Published:

Cross-Layer QoS Control for Video Communications over Wireless Ad Hoc Networks


Assuming a wireless ad hoc network consisting of homogeneous video users with each of them also serving as a possible relay node for other users, we propose a cross-layer rate-control scheme based on an analytical study of how the effective video transmission rate is affected by the prevailing operating parameters, such as the interference environment, the number of transmission hops to a destination, and the packet loss rate. Furthermore, in order to provide error-resilient video delivery over such wireless ad hoc networks, a cross-layer joint source-channel coding (JSCC) approach, to be used in conjunction with rate-control, is proposed and investigated. This approach attempts to optimally apply the appropriate channel coding rate given the constraints imposed by the effective transmission rate obtained from the proposed rate-control scheme, the allowable real-time video play-out delay, and the prevailing channel conditions. Simulation results are provided which demonstrate the effectiveness of the proposed cross-layer combined rate-control and JSCC approach.

Author information

Authors and Affiliations


Corresponding author

Correspondence to Qi Qu.

Rights and permissions

Open Access This article is distributed under the terms of the Creative Commons Attribution 2.0 International License ( ), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Reprints and permissions

About this article

Cite this article

Qu, Q., Pei, Y., Modestino, J.W. et al. Cross-Layer QoS Control for Video Communications over Wireless Ad Hoc Networks. J Wireless Com Network 2005, 412475 (2005).

Download citation

  • Received:

  • Revised:

  • Published:

  • DOI: