FACULTY OF ENGINEERING, SCIENCE AND MATHEMATICS SCHOOL OF ELECTRONICS AND COMPUTER SCIENCE Doctor of Philosophy by Perukrishnen Vytelingum The last decade has seen a shift in emphasis from centralised to decentralised systems to meet the demanding coordination requirements of today’s complex computer systems. In such systems, the aim is to achieve effective decentralised control through autonom...

To manage the increasing dynamics inside and outside a production system, a decentralised and autonomous control of shop floor logistics is a promising approach. The paper introduces the idea of autonomous logistic processes and presents a simulation model of a shop floor with both a conventionally planned and an autonomously controlled scenario. The decentralised and autonomous control strateg...

A decentralised large-scale network of mobile robots for multitarget tracking is addressed in this paper. The decentralised control is originally built up by behavioural control but upgraded with connectivity maintenance and hierarchical connectivity removal. The multi-target tracking algorithm guarantees that the mobile robots can reach the targets at the very high success rate while at least ...

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Firdaus E. Udwadia"'*, Prasanth B. Kogantib, Thanapat Wanichanon' and Du5an M. Stipanovi6'l d Depurtment of Aerospat'e antl Mechanical Engineering, Civil Engirteering, Muthematic's, and Infitrmation and Operutions Management,430K Olin Hall, Universitl,of Southern Calfornia, Los Angeles, CA 90089-1153, (/SA;hDepartment of Civil Engineering, Universitl, of South.ern CaliJbrnia, Los Angeles, CA 90...

Cascading failures in electrical power networks often come with disastrous consequences. A variety of schemes for mitigating cascading failures exist, but the vast majority depend upon centralised control architectures. Centralised designs are frequently more susceptible to communications latency and bandwidth limitations and can be vulnerable to random failures and directed attacks. This paper...

Resource brokering services are the main components that control the way applications are scheduled, managed and allocated in a decentralised, heterogeneous and dynamic Grid computing environment. Existing Grid computing systems such as a resource broker, e-Science application work-flow scheduler operate in tandem but still lack a coordination process that can lead to efficient application sche...

Decentralised workflow management systems are a new research area, where most work to-date has focused on the system’s overall architecture. As little attention has been given to the security aspects in such systems, we follow a security driven approach, and consider, from the perspective of available security building blocks, how security can be implemented and what new opportunities are prese...

A fundamental problem in building large scale Grid resource sharing system is the need for efficient and scalable techniques for discovery and provisioning of resources for delivering expected Quality of Service (QoS) to users’ applications. The current approaches to Grid resource sharing based on resource brokers are non-coordinated since these brokers make scheduling related decisions indepen...