43 Result(s)
within
Sung** Lee
Engineering
Communications Engineering, Networks
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Chapter and Conference Paper
A Unified Route Optimization Scheme for Network Mobility
Recently Network Mobility(NEMO) is being concerned as new mobility issue. Lots of NEMO issues are already being touched in IETF NEMO WG but the solution is still premature especially to the Route Optimization ...
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Article
Integrated Mobility Management Methods for Mobile IP and SIP in IP based Wireless Data Networks
With developments in voice over IP (VoIP), IP-based wireless data networks and their application services have received increased attention. While multimedia applications of mobile nodes are served by Session ...
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Chapter and Conference Paper
Discovering Technology Intelligence from Document Data in an Organisation
Technology Intelligence (TI) systems provide a mechanism for identifying business opportunities and threats. Until now, despite the increasing interest on TI, little attention has been paid to the analysis tec...
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Chapter and Conference Paper
Development of Integrated Operation, Low-End Energy Building Engineering Technology in Korea
The purpose of this project is to improve efficiency through aggressive application of individual new technologies related to building energy savings, and from their cross integration with other technologies. ...
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Article
A robust security scheme for wireless mesh enterprise networks
In this paper, we address the security challenges for wireless mesh enterprise networks (WMENs). The topology and communication characteristics of WMEN include the following: (a) deployment of the network devi...
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Chapter and Conference Paper
Technology Co-evolution Analysis in the Energy Sector
This paper suggests the method that can describe the co-evolutionary patterns in the energy sectors. Technologies that have facilitated the growth of other technologies should get the priority in the R&D inves...
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Article
Location-based QoS enhanced dynamic carrier allocation over multi-cell environments
It is well known that high multi-user and multi-carrier diversity gains can be achieved via the use of DCA (Dynamic Channel Allocation). However, there is no framework for analyzing the system performance of D...
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Article
MUQAMI+: a scalable and locally distributed key management scheme for clustered sensor networks
Wireless sensor networks (WSN) are susceptible to node capture and many network levels attacks. In order to provide protection against such threats, WSNs require lightweight and scalable key management schemes...
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Article
EFT: a high throughput routing metric for IEEE 802.11s wireless mesh networks
In this paper, we present a throughput-maximizing routing metric, referred to as expected forwarding time (EFT), for IEEE 802.11s-based wireless mesh networks. Our study reveals that most of the existing routi...
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Article
Optimal transmission methodology for QoS provision of multi-hop cellular network
In this paper, we present a framework of link capacity analysis for optimal transmission over uplink MCN (Multi-hop Cellular Network) environments. An overlaid architecture is employed as the network topology,...
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Article
Node distribution-based localization for large-scale wireless sensor networks
Distributed localization algorithms are required for large-scale wireless sensor network applications. In this paper, we introduce an efficient algorithm, termed node distribution-based localization (NDBL), wh...
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Article
A wireless access network based on WDM-PON for HMIPv6 mobility support
In this paper, an IP-based wireless access network is proposed, which is designed to support the hierarchical MIPv6 standard on the wavelength division multiplexed passive optical network access network in ord...
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Article
Analysis of resource allocation with macroscopic diversity for uplink OFDMA systems
This paper describes a framework of link capacity analysis for interference mitigation of uplink Orthogonal Frequency Division Multiple Access systems. A Macroscopic Diversity Oriented Resource Allocation (MDO...
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Article
Fair data collection in wireless sensor networks: analysis and protocol
In general, wireless sensor networks (WSNs) consist of many sensors which transmit data to a central node, called the sink, possibly over multiple hops. This many-to-one data routing paradigm leads to nonunifo...
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Article
End-to-end throughput improvement for single radio multi-channel multi-path wireless mesh networks: a cross layer design
The distinguished feature of fixed backbone nodes in the wireless mesh networks (WMNs) can be utilized to design an efficient cross layer which cooperates routing and scheduling schemes for increasing end-to-e...
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Article
A load-aware energy-efficient and throughput-maximized asynchronous duty cycle MAC for wireless sensor networks
Being a pivotal resource, conservation of energy has been considered as the most striking issue in the wireless sensor network research. Several works have been performed in the last years to devise duty cycle...
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Article
LUCA: An Energy-efficient Unequal Clustering Algorithm Using Location Information for Wireless Sensor Networks
Over the last several years, various clustering algorithms for wireless sensor networks have been proposed to prolong network lifetime. Most clustering algorithms provide an equal cluster size using node’s ID,...
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Article
Congestion-aware fair rate control in wireless mesh networks
This paper presents a fair and efficient rate control mechanism, referred to as congestion-aware fair rate control (CFRC), for IEEE 802.11s-based wireless mesh networks. Existing mechanisms usually concentrate on...
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Article
nW-MAC: multiple wake-up provisioning in asynchronously scheduled duty cycle MAC protocol for wireless sensor networks
To reduce the energy cost of wireless sensor networks (WSNs), the duty cycle (i.e., periodic wake-up and sleep) concept has been used in several medium access control (MAC) protocols. Although these protocols ...
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Chapter and Conference Paper
Exploitation and Exploration as Links between Psychological Empowerment and Creativity
This paper examines the mediating effect of ambidexterity (exploitation and exploration) between psychological empowerment and creativity. We found that psychological empowerment had strong influence on exploi...
