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ITIIS
2008
149views more  ITIIS 2008»
8 years 3 months ago
Sharing e-Learning Object Metadata Using ebXML Registries for Semantic Grid Computing
To facilitate the processes of e-learning resource description, discovery and reuse, e-learning objects should be appropriately described and classified using standard metadata th...
Hyoung Do Kim
ITIIS
2008
135views more  ITIIS 2008»
8 years 5 months ago
Enhanced Pulse Protocol RFID Reader Anti-collision Algorithm using Slot Occupied Probability in Dense Reader Environment
The Radio Frequency IDentification (RFID) system is a contactless automatic identification system, which comprises readers and tags. In RFID systems, a reader collision occurs whe...
InChan Song, Xiao Fan, KyungHi Chang
ITIIS
2008
135views more  ITIIS 2008»
8 years 5 months ago
NJ+: An Efficient Congestion Control Mechanism for Wireless Networks
Transmission control protocols have to overcome common problems in wireless networks. TCP employing both packet loss discrimination mechanism and available bandwidth estimation al...
Jaehyung Lee, Jungrae Kim, Minu Park, Jahwan Koo, ...
ITIIS
2008
128views more  ITIIS 2008»
8 years 5 months ago
An Asymmetric Key-Based Security Architecture for Wireless Sensor Networks
In spite of previous common assumptions about the incompatibility of public key cryptography (PKC) schemes with wireless sensor networks (WSNs), recent works have shown that they ...
Md. Mokammel Haque, Al-Sakib Khan Pathan, Choong S...
ITIIS
2008
69views more  ITIIS 2008»
8 years 5 months ago
A Linear Precoding Technique for OFDM Systems with Cyclic Delay Diversity
Cyclic delay diversity (CDD) is considered a simple approach to exploit the frequency diversity, to improve the system performance in orthogonal frequency division multiplexing (O...
Bing Hui, KyungHi Chang
ITIIS
2008
153views more  ITIIS 2008»
8 years 5 months ago
Two-level Key Pool Design-based Random Key Pre-distribution in Wireless Sensor Networks
In this paper, the random key pre-distribution scheme introduced in ACM CCS'02 by Eschenauer and Gligor is reexamined, and a generalized form of key establishment is introduc...
Abedelaziz Mohaisen, DaeHun Nyang, Tamer AbuHmed
ITIIS
2008
168views more  ITIIS 2008»
8 years 5 months ago
An Algorithm for Iterative Detection and Decoding MIMO-OFDM HARQ with Antenna Scheduling
In this paper, a multiple-input-multiple-output (MIMO) hybrid-automatic repeat request (HARQ) algorithm with antenna scheduling is proposed. It retransmits the packet using schedu...
KyooHyun Kim, SeungWon Kang, Manar Mohaisen, Kyung...
ITIIS
2008
80views more  ITIIS 2008»
8 years 5 months ago
A Composite LMMSE Channel Estimator for Spectrum-Efficient OFDM Transmit Diversity
In this paper, we propose a subcarrier allocation method and a composite linear minimum mean square error (LMMSE) channel estimator to increase spectrum efficiency in orthogonal f...
Jeong-Wook Seo, Won-Gi Jeon, Jong-Ho Paik, Minho J...
ITIIS
2008
158views more  ITIIS 2008»
8 years 5 months ago
Cross-layer Optimized Vertical Handover Schemes between Mobile WiMAX and 3G Networks
Nowadays, wireless packet data services are provided over Wireless MAN (WMAN) at a high data service rate, while 3G cellular networks provide wide-area coverage at a low data serv...
Jaeho Jo, Jinsung Cho
ITIIS
2008
91views more  ITIIS 2008»
8 years 5 months ago
Towards a Server-Centric Interaction Architecture for Wireless Applications
Traditional web-based services that require users to browse via documents and fill out forms, are difficult to use with mobile devices. Moreover, as the web paradigm assumes activ...
Jussi Saarinen, Tommi Mikkonen, Sasu Tarkoma, Jani...
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