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  1. 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)

  2. 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)

  3. 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)

  4. No Access

    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)

  5. 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)

  6. 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)

  7. 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)

  8. 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)

  9. 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)

  10. No Access

    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)

  11. No Access

    Article

    Base station association schemes to reduce unnecessary handovers using location awareness in femtocell networks

    In this paper, we propose a predictive scheme to generate reduced neighbor lists. In addition, we formulate a predictive association game. The game is designed to determine an optimal base station for maximum ...

    Nak Woon Sung, Ngoc-Thai Pham, Hyunsoo Yoon, Sook** Lee in Wireless Networks (2013)

  12. No Access

    Chapter and Conference Paper

    Coding DNA Sequence Watermarking

    This paper presents a coding sequence watermarking on lifting based DWT domain and brings up the availability of frequency domain watermarking for DNA sequence. The proposed scheme allocates codons to numerica...

    Suk-Hwan Lee, Won-Joo Hwang, Eung-Joo Lee in Frontier and Innovation in Future Computin… (2014)

  13. No Access

    Chapter and Conference Paper

    A Watermarking Scheme for Coding DNA Sequences Using Codon Circular Code

    This paper discusses DNA watermarking for authentication, privacy protection, and the prevention of illegal copying and mutation of DNA sequences. We propose a DNA watermarking scheme that provides mutation ro...

    Suk-Hwan Lee, Eung-Joo Lee, Won-Joo Hwang in Bio-Inspired Models of Network, Informatio… (2014)

  14. No Access

    Article

    Parametric network utility maximization problem

    We show how to solve the parametric utility maximization problem with a continuous parameter in a finite number of steps in order to obtain a solution with given accuracy. Also, we propose a new approach for t...

    Lutbat Yadamsuren, Enkhbat Rentsen, Suk-Hwan Lee, Won-Joo Hwang in Optimization Letters (2014)

  15. Article

    Open Access

    Genome sequence of mungbean and insights into evolution within Vigna species

    Mungbean (Vigna radiata) is a fast-growing, warm-season legume crop that is primarily cultivated in develo** countries of Asia. Here we construct a draft genome sequence of mungbean to facilitate genome researc...

    Yang Jae Kang, Sue K. Kim, Moon Young Kim, Puji Lestari in Nature Communications (2014)

  16. No Access

    Article

    Genome-wide comparative analysis of flowering genes between Arabidopsis and mungbean

    Mungbean is one of the major crops grown in South, East and Southeast Asia because of a high quality of amino acid profile; however, its asynchronous flowering time makes difficult to harvest at a time. Synchr...

    Sue K. Kim, Taeyoung Lee, Yang Jae Kang, Won Joo Hwang, Kil Hyun Kim in Genes & Genomics (2014)

  17. No Access

    Article

    Perceptual 3D model hashing using key-dependent shape feature

    With the rapid growth of three-dimensional (3D) content, perceptual 3D model hashing will become a solution for the authentication, reliability, and copy detection of 3D content and will continue to be an impo...

    Suk-Hwan Lee, Won-Joo Hwang, Ki-Ryong Kwon in Multimedia Tools and Applications (2014)

  18. No Access

    Article

    Polyline curvatures based robust vector data hashing

    The growth in applications for vector data such as CAD design drawings and GIS digital maps has increased the requirements for authentication, copy detection, and retrieval of vector data. Vector data hashing ...

    Suk-Hwan Lee, Won-Joo Hwang, Ki-Ryong Kwon in Multimedia Tools and Applications (2014)

  19. No Access

    Article

    Dynamic Control Policy for Delay Guarantees in Multi-hop Wireless Networks

    This paper considers the dynamic control of stochastic networks for the guaranteed delay with network utility maximization in multi-hop wireless networks. On contrary to single hop case, the delay is difficult...

    Thong Huynh, Ngoc-Thai Pham, Suk-Hwan Lee in Wireless Personal Communications (2015)

  20. Article

    Open Access

    Draft genome sequence of adzuki bean, Vigna angularis

    Adzuki bean (Vigna angularis var. angularis) is a dietary legume crop in East Asia. The presumed progenitor (Vigna angularis var. nipponensis) is widely found in East Asia, suggesting speciation and domestication...

    Yang Jae Kang, Dani Satyawan, Sangrea Shim, Taeyoung Lee, Jayern Lee in Scientific Reports (2015)

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