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    Article

    Large margin shortest path routing

    A new discriminative approach to routing inspired by the large margin criterion serving as a basis for support vector machines is presented. The proposed formulation uses the benefit of the dualization convex ...

    Yadamsuren Lutbat, Rentsen Enkhbat, Won-Joo Hwang in Optimization Letters (2012)

  2. Article

    Open Access

    Throughput-optimal scheduling for cooperative relaying in wireless access networks

    This article considers the cooperation between base station and relay stations to increase system throughput in time-slotted relaying wireless networks, such as dynamic time division multiple access systems. W...

    Ngoc-Thai Pham, Thong Huynh, Won-Joo Hwang in EURASIP Journal on Wireless Communications… (2012)

  3. No Access

    Chapter and Conference Paper

    An Efficient Power Control Scheme for Spectrum Mobility Management in Cognitive Radio Sensor Networks

    In cognitive radio sensor networks, following the conventional scheme, a secondary user is always required to execute handoff procedure when detecting appearance of a primary user. That makes performance of th...

    Khanh-Huy Nguyen, Won-Joo Hwang in Embedded and Multimedia Computing Technology and Service (2012)

  4. Article

    Open Access

    Joint Power Control, Base Station Assignment, and Channel Assignment in Cognitive Femtocell Networks

    Cognitive radio and femtocells are recent technology breakthroughs that aim to achieve throughput improvement by means of spectrum management and interference mitigation, respectively. However, these technolog...

    JohnPaulM Torregoza, Rentsen Enkhbat in EURASIP Journal on Wireless Communications… (2010)

  5. No Access

    Chapter

    On Solvability of the Rate Control Problem in Wired-cum-Wireless Networks

    In a wired-cum-wireless network, the rate control problem is a difficult optimization problem. This chapter addresses the solvability of the optimization problem, where the optimization variables are both end-...

    Won-Joo Hwang, Cong Loi Le, Rentsen Enkhbat in Optimization and Optimal Control (2010)

  6. No Access

    Chapter and Conference Paper

    Collision Prevention for Exploiting Spatial Reuse in Ad Hoc Network Using Directional Antenna

    To improve the performance of a wireless Ad Hoc network at the MAC layer, one way is to prevent collision and allow spatial reuse among neighbor nodes as much as possible. In this paper, we present a novel MAC...

    Pu Qingxian, Won-Joo Hwang in Advanced Intelligent Computing Theories an… (2008)

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    Chapter and Conference Paper

    Optimization and Routing Discovery for Ad Hoc Wireless Networks: A Cross Layer Approach

    Wireless communication links are time-varying in nature, causing degradation of network’s performance; this however, could be alleviated by allowing cross layer interaction in the protocol stack. Hence, optimi...

    Reizel Casaquite, Won-Joo Hwang in Advances in Hybrid Information Technology (2007)

  8. No Access

    Chapter and Conference Paper

    Design and Emulation of Integration Framework for Heterogeneous Wireless PAN Networks

    WPANs (Wireless personal area networks) vary greatly by nature with regard to requirements such as data rate, coverage, subscriber volume, and supported mobile velocity. Mobile devices with multiple network in...

    In-Yeup Kong, Won-Joo Hwang in Ubiquitous Computing Systems (2006)

  9. No Access

    Chapter and Conference Paper

    Multicast Algorithms Using Status of Receivers in WDM Broadcast Network for CDN

    Multicasting the multimedia content usually requires broader bandwidth than unicasting service and accordingly WDM broadcast network has been highly recommended for the infrastructure network of CDN(Content De...

    Kyohong **, JongWook Jang, Won-Joo Hwang in Information Networking. Networking Technol… (2004)

  10. No Access

    Chapter and Conference Paper

    Adaptive Playout Algorithm Using Packet Expansion for the VoIP

    Internet telephony means placing telephone call over the Internet which providing “best effort” service only instead of Public Switched telephone networks. Because of this, Internet telephony cannot guarantee ...

    Jae-Hyun Nam, Won-Joo Hwang, Jong-Gyu Kim, Soong-Hee Lee in Information Networking (2003)

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