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Cross-layer modeling of adaptive wireless links for QoS support in heterogeneous wired-wireless networks

Author: Liu Qingwen  

Publisher: Springer Publishing Company

ISSN: 1022-0038

Source: Wireless Networks, Vol.12, Iss.4, 2006-08, pp. : 427-437

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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.