Special issue on “Intelligent systems and services for ubiquitous computing”

Abstract

Ubiquitous computing is emerging rapidly as an exciting new paradigm to provide computing and communication services anytime and anywhere. To offer smart services at the right time, right place and using the right means, ubiquitous systems must possess appropriate levels of intelligence. Our special issue provides an opportunity for academic and industry professionals to present recent progress in the area of intelligent ubiquitous computing systems including models, infrastructures, new directions and novel applications associated with the utilization and acceptance of intelligent ubiquitous devices and systems. This special issue aims to foster the dissemination of high quality, original research on new intelligent systems and services. Submissions to this special issue come from an open call for papers as well as from selected papers presented at the 3rd International Symposium on Ubiquitous Application and Security Service (UASS-08) held at Ginowan, Okinawa, Japan, from 25 March to 28 March 2008. Accordingly, a number of papers included in this special issue concentrate on intelligent systems and its building blocks, including routing schemes, broadcasting protocols, collision avoidance mechanism, information processing and middleware architectures for ubiquitous computing environments. Others focus on specific intelligent services and applications based on ubiquitous computing environments. More specifically, H. Kim presents an intra-domain route optimization scheme for ubiquitous networks. Her scheme shows cost-effectiveness in every hierarchical domain that spans mesh network topology and it performs much better than the Network Mobility protocol, when the number of mobile nodes or mobile routers or correspondent nodes increases in hierarchically nested in ubiquitous networks. Vaidya also presents a routing scheme guaranteeing robustness and security, and this scheme is especially designed for wireless multi-hop networks. His routing protocol achieves better performance in terms of various metrics than other protocols. Zhang introduces concepts bringing quality of service (QoS) to peer-to-peer (P2P)-based semantic service discovery for the universal network. Generally, service discovery in the universal network is quite distinct from that of present networks. Zhang puts QoS measurements into service discovery so as to adapt to the universal network, especially P2P networks, as an infrastructure to fulfill the service discovery due to the large amount of services in the network. Peng presents adaptive broadcasting protocols, which can be used in ubiquitous intelligent VOD applications. Peng’s schemes can intelligently adjust the solution J. H. Park (&) Department of Computer Science and Engineering, Kyungnam University, Kyungnam, Korea e-mail: parkjonghyuk1@hotmail.com