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

  • Authors:
  • Qingwen Liu;Shengli Zhou;Georgios B. Giannakis

  • Affiliations:
  • Dept. of Electrical and Computer Engr., Univ. of Minnesota, Minneapolis, MN;Dept. of Electrical and Computer Engr., Univ. of Connecticut, Storrs, CT;Dept. of Electrical and Computer Engr., Univ. of Minnesota, Minneapolis, MN

  • Venue:
  • Wireless Networks
  • Year:
  • 2006

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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.