A Modified-PLFS Packet Scheduling Algorithm for Supporting Real-time traffic in IEEE 802.22 WRAN Systems

Young-Du Lee; In-Soo Koo; Gwang-Zeen Ko

A Modified-PLFS Packet Scheduling Algorithm for Supporting Real-time traffic in IEEE 802.22 WRAN Systems

Young-Du Lee, In-Soo Koo, Gwang-Zeen Ko, Journal of Internet Computing and Services, Vol. 9, No. 4, pp. 1-10, Aug. 2008
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Keywords: IEEE 802.22 WRAN, OFDMA, Scheduling, QoS

Abstract

In this paper, a packet scheduling algorithm, called the modified PLFS, is proposed for real-time traffic in IEEE 802.22 WRAN systems. The modified PLFS(Packet Loss Fair Scheduling) algorithm utilizes not only the delay of the Head of Line(HOL) packets in buffer of each user but also the amount of expected loss packets in the next-next frame when a service will not be given in the next frame. The performances of the modified PLFS are compared with those of PLFS and M-LWDF in terms of the average packet loss rate and throughput. The simulation results show that the proposed scheduling algorithm performs much better than the PLFS and M-LWDF algorithms.

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Cite this article

[APA Style]

Lee, Y., Koo, I., & Ko, G. (2008). A Modified-PLFS Packet Scheduling Algorithm for Supporting Real-time traffic in IEEE 802.22 WRAN Systems. Journal of Internet Computing and Services, 9(4), 1-10.

[IEEE Style]

Y. Lee, I. Koo, G. Ko, "A Modified-PLFS Packet Scheduling Algorithm for Supporting Real-time traffic in IEEE 802.22 WRAN Systems," Journal of Internet Computing and Services, vol. 9, no. 4, pp. 1-10, 2008.

[ACM Style]

Young-Du Lee, In-Soo Koo, and Gwang-Zeen Ko. 2008. A Modified-PLFS Packet Scheduling Algorithm for Supporting Real-time traffic in IEEE 802.22 WRAN Systems. Journal of Internet Computing and Services, 9, 4, (2008), 1-10.