A stability-based scheduling scheme for OFDMA networks

Authors:
Mohammad Fathi;Hassan Taheri;Mehri Mehrjoo
Affiliations:
Department of Electrical Engineering, Amirkabir University of Technology, Tehran, Iran;Department of Electrical Engineering, Amirkabir University of Technology, Tehran, Iran;Department of Electrical and Computer Engineering, University of Sistan and Baluchestan, Iran
Venue:
ISWPC'10 Proceedings of the 5th IEEE international conference on Wireless pervasive computing
Year:
2010

Citing 5
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Abstract

The focus of this paper is on joint channel-aware and queue-aware scheduling schemes for the downlink of Orthogonal Frequency Division Multiple Access (OFDMA) networks. The objective is to enhance the stability of the queues while improving the network throughput. For this purpose, a Multi-Carrier Opportunistic Stable Queue (MC-OSQ) scheduling scheme is proposed, and a multi-carrier Modified Largest Weighted Delay First (M-LWDF) scheduling scheme is extended. The proposed stability metric used by MC-OSQ makes the network queues stable, while improving the network aggregate throughout. The comparable performance of MC-OSQ with that of M-LWDF reveals that the proposed stability metric is effective in reflecting the queue status in queue-aware scheduling schemes.