Cross-Layer Modeling of Adaptive Wireless Links for QoS Support in Multimedia Networks

Authors:
Qingwen Liu;Shengli Zhou;Georgios B. Giannakis
Affiliations:
University of Minnesota;University of Connecticut;University of Minnesota
Venue:
QSHINE '04 Proceedings of the First International Conference on Quality of Service in Heterogeneous Wired/Wireless Networks
Year:
2004

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Abstract

Future wired-wireless multimedia networks require diverse quality-of-service (QoS) support. To this end, it is essential to rely on QoS metrics pertinent to wireless links. In this paper, we develop a cross-layer model for adaptive wireless links, which enables derivation of the desired QoS metrics analytically from the typical wireless parameters across the hardware-radio layer, the physical layer and the data link layer. We illustrate the advantages of our model: generality, simplicity, scalability and backward compatibility. Finally, we outline its applications to power control, TCP, UDP and bandwidth scheduling in wireless networks.