Physical Sciences and Mathematics Commons^™

A Comparative Analysis Of The Use Of The Web For Destination Marketing By Regional Tourism Organisations In Chile And The Asia Pacific, Lois Burgess, Joan Cooper, Narciso Cerpa, Jason P. Sargent

Faculty of Informatics - Papers (Archive)

With reports of travel purchases and reservations being one of the fastest growing segments of the Internet community (eMarketer, 2002), it is no surprise that the number of tourism operators on the Web has increased considerably over the past few years. In recent years, Australia and Chile have developed strong social and economic ties. With the introduction of direct air links between Australia and Chile in July 2002, the number of Australian business people and tourists visiting Chile and neighbouring countries increased significantly. This isn’t surprising considering approximately 35,000 Chileans live in Australia (DFAT, 2005). This paper presents the results …

A Generalized Algorithm For The Generation Of Correlated Rayleigh Fading Envelopes In Wireless Channels, Le Chung Tran, Tadeusz A. Wysocki, Alfred Mertins, Jennifer R. Seberry

Faculty of Informatics - Papers (Archive)

Although generation of correlated Rayleigh fading envelopes has been intensively considered in the literature, all conventional methods have their own shortcomings, which seriously impede their applicability. In this paper, a very general, straightforward algorithm for the generation of an arbitrary number of Rayleigh envelopes with any desired, equal or unequal power, in wireless channels either with or without Doppler frequency shifts, is proposed. The proposed algorithm can be applied to the case of spatial correlation, such as with multiple antennas in Multiple Input Multiple Output (MIMO) systems, or spectral correlation between the random processes like in Orthogonal Frequency Division …

A Data-Fitting Approach For Displacements And Vibration Measurement Using Self-Mixing Interferometers, Yi Zhang, Jiangtao Xi, Joe F. Chicharo, Yanguang Yu

Faculty of Informatics - Papers (Archive)

This paper presents a signal processing approach for vibration measurement using self-mixing interferometer (SMI). Compared to existing approaches, the proposed approach is able to achieve an accuracy of λ/40 which significantly exceeds the accuracy limit associated with conventional simple SMI systems λ/4.

Web Globalization: A Methodology For Developing Usable Websites For The Global Market, Ghassan Al Qaimari

Faculty of Informatics - Papers (Archive)

In today’s global economy, with the appearance of the Internet and the fast evolution of technology, the frontiers of local markets have been fading and blending with global markets. These markets with no boundaries have lead many companies, organizations, educational institutions, and digital libraries to develop their own websites, and to find ways to make them usable and accessible and their products saleable to customers outside their traditional markets. Going global can help corporations lower the cost of entry to international trade, increase sales, create global demands, and establish a reliable, professional and international image online.

This means that website …

Distributing Network Game Servers For Improved Geographical Scalability, Paul A. Boustead, Farzad Safaei, Jeremy Brun

Faculty of Informatics - Papers (Archive)

World-wide multiplayer games present several scalability challenges for large-scale deployment. In recent years, significant research has been devoted to scaling in terms of number of players so that the same virtual world can accommodate larger number of simultaneous avatars. A possible solution is to use grid computing techniques for distribution of processing over a cluster or a distributed set of servers. Scalability with respect to geographical distribution of players is another challenge. Large geographical distances between players introduces propagation delays which are impossible to avoid. Without proper design, responsiveness of the application to user inputs is degraded even when there …

A Theoretical Justification For Partnerships In Community Technology Centre Projects, William Tibben

Faculty of Informatics - Papers (Archive)

In many Community Technology Centre projects, partnerships are emerging as a fundamentally important aspect to achieving sustainability. While generally considered a less formal approach than direct funding from rich benefactors such as Government or philanthropic organisations, the paper argues that partnerships offer an effective and theoretically justifiable framework to achieving sustainability. Drawing on information based perspectives the paper proposes a theoretical justification for the use of partnerships in community informatics projects that is able to incorporate individuals and groups in the analysis.

A Secure Multicast Architecture And Protocol For Mospf, Junqi Zhang, Yi Mu, Vijay Varadharajan

Faculty of Informatics - Papers (Archive)

Multicast Open Shortest Path First (MOSPF) is an en hancement to unicast routing protocol OSPF. It has been widely used in many multicast applications for years. How ever, its security is still a major concern in some applica tions. Much work has been done on data protection, but only a few works have been done on member access con trol mechanisms. In this paper, we present a new secure multicast architecture and protocol for MOSPF from the perspective of member access control. Our new model in cludes a variant of previous access control mechanism and a novel distributed encryption scheme. …