Direct Digital Synthesis (DDS) systems generate fine frequency resolution signals over a broad spectrum that are used in a wide variety of applications such as multi-mode RF, communications, measurements and test. A ...

This thesis proposes a new approach to the management of the Authentication, Authorization and Accounting (AAA) function that forms a core part of many service provider networks. The principle idea outlined is to move this ...

A labial flue pipe is a well known tone generator, which is familiar and easily recognisable as the organ pipes seen in many concert halls and churches. However, the design and understanding of the sounding mechanism of ...

This research addresses synchronisation issues in security protocols for wireless communications. A new class of attacks, termed Suppress-and-Desynchronise (SD) attacks, is introduced. This attack uses the vulnerabilities ...

Quality of service (QoS) is a measure of a communication network performance that reflects the transmission quality and service availability as perceived by the users. In the context of telecommunications, voice communication ...

The characterisation of power control principles that underpin the performance dynamics of communication is an important feature in the user level in Ambulatory Wireless Sensor Networks. This thesis uses Model Predictive ...

This paper describes the characterization, modeling, and application of a direct-readout complementary metal–oxide–semiconductor (CMOS) camera in white-light interferometry (WLI). The camera that was used consisted of a ...

Conventional digital signal processor (DSP) based digital controllers are not specifically optimized for multi-rail DC-DC converter applications. A new application-specific instruction-set processor (ASIP) that overcomes ...

Purpose - With the significant growth in electronic education materials such as syllabus documents and lecture notes, available on the internet and intranets, there is a need for robust central repositories of such materials ...

Topical annotation of documents with keyphrases is a proven method for revealing the subject of scientific and research documents to both human readers and information retrieval systems. This article describes a machine ...