ITIIS
2008
13 years 9 months ago
2008
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...
ITIIS
2008
13 years 11 months ago
2008
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...
ITIIS
2008
13 years 11 months ago
2008
Transmission control protocols have to overcome common problems in wireless networks. TCP employing both packet loss discrimination mechanism and available bandwidth estimation al...
ITIIS
2008
13 years 11 months ago
2008
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 ...
ITIIS
2008
13 years 11 months ago
2008
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...
ITIIS
2008
13 years 11 months ago
2008
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...
ITIIS
2008
13 years 11 months ago
2008
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...
ITIIS
2008
13 years 11 months ago
2008
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...
ITIIS
2008
13 years 11 months ago
2008
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...
ITIIS
2008
13 years 11 months ago
2008
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...