Threshold-based parallel multiuser scheduling

Sung Sik Nam; Mohamed Slim Alouini; Hong Chuan Yang; Khalid A. Qaraqe

doi:10.1109/TWC.2009.080784

Threshold-based parallel multiuser scheduling

Sung Sik Nam, Mohamed Slim Alouini, Hong Chuan Yang, Khalid A. Qaraqe

Research output: Contribution to journal › Article › peer-review

11 Citations (Scopus)

Abstract

In this paper, we propose two new threshold based parallel multiuser scheduling schemes, namely (i) an on-off based scheduling (OOBS) scheme and (ii) a switched based scheduling (SBS) scheme. The objective is to reduce the complexity of implementation without a considerable performance loss in comparison with conventional selection based scheduling. While the OOBS scheme schedules all the users with an SNR above a fixed preselected signal to noise ratio (SNR) threshold, the SBS scheme schedules only the K_s users with an acceptable SNR if there are enough acceptable users. Otherwise, the scheduler selects the best K_s users. We analyze statistical characteristics and performances of these proposed schemes. Numerical results show that the proposed schemes can offer some decrease in the average feedback load without an important degradation in average bit error rate and average spectral efficiency.

Original language	English
Article number	4907478
Pages (from-to)	2150-2159
Number of pages	10
Journal	IEEE Transactions on Wireless Communications
Volume	8
Issue number	4
DOIs	https://doi.org/10.1109/TWC.2009.080784
Publication status	Published - Apr 2009
Externally published	Yes

Keywords

Adaptive modulation
Diversity techniques
Feedback
Multiuser scheduling
Spectral efficiency

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10.1109/TWC.2009.080784

Cite this

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Threshold-based parallel multiuser scheduling

Abstract

Keywords

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