An Efficient Downlink Scheduling Scheme Using Prediction of Channel State in an OFDMA-TDD System 


Vol. 31,  No. 5, pp. 451-458, May  2006


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  Abstract

In this paper, we propose a novel scheduling algorithm for downlink transmission which utilizes scarce wireless resource efficiently in an Orthogonal Frequency Division Multiple Access/Time Division Duplex system. Scheduling schemes which exploit channel information between a Base Station and terminals have been proposed recently for improved performance. Time series analysis is used to estimate the channel state of mobile terminals. The predicted information is then used for prioritized scheduling of downlink transmissions for improved throughput, delay and jitter performance. Through simulation, we show that the total throughput and mean delay of the proposed scheduling algorithm are improved compared with those of the Proportional Fairness and Maximum Carrier to Interference Ratio schemes.

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  Cite this article

[IEEE Style]

S. Kim, J. Won, H. Lee, C. Cho, "An Efficient Downlink Scheduling Scheme Using Prediction of Channel State in an OFDMA-TDD System," The Journal of Korean Institute of Communications and Information Sciences, vol. 31, no. 5, pp. 451-458, 2006. DOI: .

[ACM Style]

Se-Jin Kim, Jeong-Jae Won, Hyong-Woo Lee, and Choong-Ho Cho. 2006. An Efficient Downlink Scheduling Scheme Using Prediction of Channel State in an OFDMA-TDD System. The Journal of Korean Institute of Communications and Information Sciences, 31, 5, (2006), 451-458. DOI: .

[KICS Style]

Se-Jin Kim, Jeong-Jae Won, Hyong-Woo Lee, Choong-Ho Cho, "An Efficient Downlink Scheduling Scheme Using Prediction of Channel State in an OFDMA-TDD System," The Journal of Korean Institute of Communications and Information Sciences, vol. 31, no. 5, pp. 451-458, 5. 2006.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880