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Journal of Applied Sciences
  Year: 2009 | Volume: 9 | Issue: 3 | Page No.: 449-458
DOI: 10.3923/jas.2009.449.458
 
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A Two-Layer Channel-Aware Scheduling Algorithm for IEEE 802.16 Broadband Wireless Access Systems

R. Ghazizadeh, P. Fan and Y. Pan

Abstract:
In this study, a two-layer channel-aware scheduling algorithm, named Adaptive Credit-Based Fair Queuing (ACFQ) Based on Credit-Based Fair Queuing (CBFQ) is introduced. The proposed algorithm adapts the error-free CBFQ with the multi-rate nonideal environment considering the Adaptive Modulation and Coding (AMC) at the radio link layer and provides packet-level Quality of Service (QoS) over the wireless fading channel. It is shown that the introduced AMC architecture and compensation model in two-layer scheduling provide fair sharing while ensuring high bandwidth efficiency. Furthermore, the proposed scheduler exhibits very low complexity, thus suitable for practical implementation.
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How to cite this article:

R. Ghazizadeh, P. Fan and Y. Pan, 2009. A Two-Layer Channel-Aware Scheduling Algorithm for IEEE 802.16 Broadband Wireless Access Systems. Journal of Applied Sciences, 9: 449-458.

DOI: 10.3923/jas.2009.449.458

URL: https://scialert.net/abstract/?doi=jas.2009.449.458

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