Jae-Yong Yoo

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1389-1286/$ see front matter 2012 Elsevier B.V http://dx.doi.org/10.1016/j.comnet.2012.05.009 ⇑ Corresponding author. E-mail addresses: jyyoo@nm.gist.ac.kr (J.-Y. Y telekom.de (C. Sengul), ruben.merz@telekom.de (R. ac.kr (J. Kim). Achieving efficient bandwidth utilization in wireless networks requires solving two important problems: (1) which packets to(More)
In a WiFi network with mobile nodes, it is quite a challenging task to provide P2P (peer-to-peer) VoD (video-on-demand) service while maintaining high aggregated throughput of network. MOVi (mobile opportunistic video-on-demand) is an early trial for mobile P2P VoD service where a centralized coordinator schedules segment-based transmissions (i.e., segment(More)
Transmission scheduling to improve the capacity in wireless mesh networks (WMNs) is challenging. One promising candidate solution is backpressure scheduling, which was proved to provide throughput optimality and queue stability in theory. Additionally, several recent practical systems that implement approximations of backpressure scheduling show performance(More)
Understanding the maximum end-to-end throughput available with any given wireless multi-hop network is an important, but very challenging task. It may be approximated up to certain degree for several simplified topologies such as chain, cross, and others. Typically, in case of chain-topology wireless multi-hop networks employing IEEE 802.11 DCF (distributed(More)
Even though hot spots and mesh networks increasingly realize the long-standing vision of ubiquitous Internet access, our understanding of wireless protocols and system is still in its infancy. To analyze and debug the current and new protocols, packet-level accurate information of protocol status is crucially needed. Thus, this paper introduces PaPMo(More)
IEEE 802.11-based Enterprise WMNs (Wireless Mesh Networks) is one of possible practical extensions of WMNs. However, the wide adoption of Enterprise WMNs is limited by the flow unfairness problem due to the complicated interference relationship between adjacent nodes. To overcome this limitation, we propose FlowNet that centrally coordinates flows to(More)