Hyung-Keun Ryu

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Ethernet Passive Optical Networks (EPONs) are an emerging access network technology that provides a low cost !!solution for fiber-to-the-home (FTTH) and fiber-to-business (FTTB). In this paper, conventional bandwidth allocation schemes in EPON are shown to suffer from poor utilization under nonuniform traffic conditions, particularly as the number of ONUs,(More)
In recent years, the world has witnessed the deployment of several 3G and 3.5G wireless networks based on technologies such as CDMA 1x EVolution Data-Only (EVDO), High-Speed Downlink Packet Access (HSDPA), and mobile WiMax (e.g., WiBro). Although 3G and 3.5G wireless networks support enough bandwidth for typical Internet applications, their performance(More)
This letter proposes a deterministic packet marking scheme that estimates the maximum link price on a communication path. The proposed scheme is simple and IP-compatible because it uses two-bit Explicit Congestion Notification (ECN) field and IP identification (IPid) field in the standard IP header for the estimation. Through simulations using real IP(More)
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