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A cross-layer design of wireless IP systems using effective bandwidth and MQAM adaptive modulation

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Abstract

In this paper, we introduce an effective bandwidth-based call admission control (CAC) with adaptive modulation technique to manage the traffic in a wireless IP-based network. Furthermore, in order to efficiently use the physical resources of the network, we take advantage of an adaptive MQAM (M-ary quadrature amplitude modulation) to match transmission rates to the time-varying channel conditions. This cross-layer architecture has been examined for the self-similar traffic model. The results show that by simultaneous implementation of the effective bandwidth algorithm in the data-link layer and adaptive modulation technique in the physical layer, the performance of the wireless network in terms of the number of rejected calls and system throughput improves.

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Authors and Affiliations

  1. Telecommunications Lab, School of Electrical and Information Engineering, The University of Sydney, Sydney, NSW, 2006, Australia

    Neda Aboutorab

  2. Microwave & Wireless Research Lab, Electrical Engineering Department, Amirkabir University of Technology, Hafez Ave., Tehran, 15914, Iran

    Abbas Mohammadi

Authors
  1. Neda Aboutorab
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  2. Abbas Mohammadi
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Correspondence to Abbas Mohammadi.

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Aboutorab, N., Mohammadi, A. A cross-layer design of wireless IP systems using effective bandwidth and MQAM adaptive modulation. Telecommun Syst 46, 343–351 (2011). https://doi.org/10.1007/s11235-010-9292-4

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  • DOI: https://doi.org/10.1007/s11235-010-9292-4

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