A5001429269- Optical Network Technologies
- Advanced Photonic Communication Systems
- Semiconductor Lasers and Optical Devices
- Advanced Optical Network Technologies
- Photonic and Optical Devices
- graph theory and CDMA systems
- Energy Efficient Wireless Sensor Networks
- Coding theory and cryptography
- Mobile Ad Hoc Networks
- Animal Behavior and Welfare Studies
- Food Supply Chain Traceability
- Advanced Fiber Optic Sensors
- Wireless Communication Networks Research
- Magneto-Optical Properties and Applications
- Energy Harvesting in Wireless Networks
- Wireless Networks and Protocols
- Effects of Environmental Stressors on Livestock
- Interconnection Networks and Systems
- Indoor and Outdoor Localization Technologies
- Crystallization and Solubility Studies
- Advanced Fiber Laser Technologies
- Cooperative Communication and Network Coding
- Spectroscopy and Chemometric Analyses
- Mineral Processing and Grinding
- Opportunistic and Delay-Tolerant Networks
University of Strathclyde
2016-2025
Cardiff Metropolitan University
2020
University of Glasgow
1982-2020
BAE Systems (Sweden)
2014
MIMOS (Malaysia)
2012
Dynamic Imaging (United Kingdom)
2010-2011
Institute for Research and Innovation in Social Services
2008
Korea National University of Education
2007
Fujitsu (United Kingdom)
2001
Rolls-Royce (United Kingdom)
1998
This paper consists of a categorization optical buffering strategies for packet switches, and comparison the performance these both with respect to loss/delay bit error rate (BER) performance. Issues surrounding buffer implementation are discussed, representative architectures introduced under different categories. Conclusions drawn about loss BER performance, characteristics an architecture should have be practical. It is shown that there strong case use regeneration successful cascading...
This paper reviews the work carried out under European ACTS KEOPS (KEys to Optical Packet Switching) project, centering on definition, development and assessment of optical packet switching routing networks capable providing transparency payload bit rate. The adopted approach uses packets fixed duration with low rate headers facilitate processing at network/node interfaces. concentrates networking concepts developed in project through a description implementation issues pertinent nodes...
The paper presents a classification of cyber attacks within the context state art in maritime industry. A systematic categorization vessel components has been conducted, complemented by an analysis key services delivered ports. vulnerabilities Global Navigation Satellite System (GNSS) have given particular consideration since it is critical subcategory many infrastructures and, consequently, target for attacks. Recent research confirms that dramatic proliferation crimes fueled increased...
This paper reviews the work carried out in ACTS KEOPS (Keys to Optical Packet Switching) project, describing results obtained date. The main objective of project is definition, development, and assessment optical packet switching routing networks, capable providing transparency payload bit rate, using packets fixed duration low rate headers order enable easier processing at network/node interfaces. feasibility concept assessed by modeling, laboratory experiments, testbed implementation nodes...
WASPNET is an EPSRC-funded collaboration between three British Universities: the University of Strathclyde, Essex University, and Bristol supported by a number industrial institutions. The project which investigating novel packet-based optical WDM transport network-involves determining management, systems, devices ramifications new network control scheme, SCWP, flexible simplifies hardware requirements. principal objective to understand advantages potential packet switching compared...
Recently, optical packet switch architectures, composed of devices such as switches, fiber delay lines, and passive couplers, have been proposed to overcome the electromagnetic interference (EMI), pinout interconnection problems that would be encountered in future large electronic cores. However, attaining buffer size (buffer depth) switches required practice is a major problem; this paper, new solution presented. An architectural concept discussed justified mathematically relies on...
An incoherent optical code division multiple access (CDMA) concept using a combination of wavelength hopping and time spreading is introduced employing prime-hop sequences, which feature an autocorrelation function with zero sidelobes crosscorrelation at most 1. Consequently, the number stations in network simultaneous users that can be supported greatly increased. The system suitable for truly asynchronous highly secure LAN applications.
Analysis of hybrid wavelength hopping/time spreading systems and their classification into symmetric asymmetric (undercolored overcolored systems) is given. The characteristics a system using extended quadratic congruence sequences for prime cyclic shifts hopping are examined. It shown that the exhibit excellent cross-correlation properties even in case general system. security presented both from viewpoint exhaustive search chosen attack. Initial investigations indicate can be so configured...
Inspection of rice seeds is a crucial task for plant nurseries and farmers since it ensures seed quality when growing seedlings. Conventionally, this process performed by expert inspectors who manually screen large samples to identify their species assess the cleanness batch. In quest automate screening through machine vision, variety approaches utilise appearance-based features extracted from RGB images while others spectral information acquired using Hyperspectral Imaging (HSI) systems....
A growing portfolio of research has been reported on the use machine learning-based architectures and models in domain healthcare. The development data-driven applications services for diagnosis classification key illness conditions is challenging owing to issues low volume, low-quality contextual data training, validation algorithms, which, turn, compromises accuracy resultant models. Here, a fusion learning approach presented reporting an improvement identification diabetes prediction...
Abstract Computational analysis of infant movement has significant potential to reveal markers developmental health. We report two studies employing dynamic analyses motor kinematics and behaviours, which characterise at levels, in 9-month-old infants. investigate the effect preterm birth (< 33 weeks gestation) changing emotional social-interactive contexts still-face paradigm. First, multiscale permutation entropy was employed analyse acceleration kinematic timeseries data collected from...
It is shown that the mechanism for sideband formation in erbium mode-locked soliton fiber lasers a perturbation to average nonlinear Schrodinger equation (NLSE) allied phase matching criterion. Numerical simulations agreement with theoretical description are presented. While problem has been formulated terms of linear, or ring cavity, same underlying process will occur figure eight other configurations. The theory equally applicable transmission systems.< <ETX...
Abstract The growth in wirelessly enabled sensor network technologies has the low cost deployment of platforms with applications a range sectors and communities. In agricultural domain such sensors have been foundation for creation decision support tools that enhance farm operational efficiency. This Research Reflection illustrates how these advances are assisting dairy farmers to optimise performance where emerging technology can offer additional benefits. One early at an individual animal...
Interferometric noise, arising on the optical interference of desired information signal and parasitic crosstalk waveforms at photodetector, afflicts practically all lightwave communication networks, inducing unacceptable power penalties bit error rate floors. In this paper, induced performance degradation is quantified, both experimentally analytically, solution paths are identified. It concluded that total level noise generating parasitics in a generalized network must be held below -25 dB...
This paper analyzes the packet loss and delay performance of an arrayed-waveguide-grating-based (AWG) optical switch developed within EPSRC-funded project WASPNET (wavelength switched network). Two node designs are proposed based on feedback feed-forward strategies, using sharing among multiple wavelengths to assist in contention resolution. The configuration allows priority routing at expense a larger AWG. An analytical framework has been established compute probability under Bernoulli...
Particle processing industries, such as pharmaceutical, food and consumer goods sectors, increasingly require strategies to control engineer particle attributes. In both traditional batch continuous processes, size shape need be effectively monitored through in-line measurements from Process Analytical Technologies. However, obtaining quantitative information these has proven challenging imaging techniques are primarily used for qualitative purposes. Two key challenges are: (1) the presence...
The reticuloruminal function is central to the digestive efficiency in ruminants. For cattle, collar- and ear tag-based accelerometer monitors have been developed assess time spent ruminating on an individual animal. Cattle that are ill feed less so ruminate less, thus, estimation of provides insights into health animals. pH boluses directly provide information within rumen extended (three hours or more) periods during which ruminal value remains below 5.6 indicator dysfunction poor welfare...
Efficient processing of particulate products across various manufacturing steps requires that particles possess desired attributes such as size and shape. Controlling the particle production process to obtain required will be greatly facilitated using robust algorithms providing shape information from in situ measurements. However, obtaining during has been a big challenge. This is because problem estimating (aspect ratio) signals provided by in-line measuring tools often ill posed,...
Worldwide, there is a trend towards increased herd sizes, and the animal-to-stockman ratio increasing within beef dairy sectors; thus, time available to monitoring individual animals reducing. The behaviour of cows known change in hours prior parturition, for example, less ruminating eating activity level tail-raise events. These behaviours can be monitored non-invasively using animal-mounted sensors. Thus, behavioural traits are ideal variables prediction calving. This study explored...
Monitoring cattle behaviour is core to the early detection of health and welfare issues optimise fertility large herds. Accelerometer-based sensor systems that provide activity profiles are now used extensively on commercial farms have evolved identify behaviours such as time spent ruminating eating at an individual animal level. Acquiring this information scale central informing on-farm management decisions. The paper presents development a Convolutional Neural Network (CNN) classifies...
The use of supervised Machine Learning (ML) to enhance Intrusion Detection Systems has been the subject significant research. Supervised ML is based upon learning by example, demanding volumes representative instances for effective training and need re-train model every unseen cyber-attack class. However, retraining models in-situ renders network susceptible attacks owing time-window required acquire a sufficient volume data. Although anomaly detection systems provide coarse-grained defence...