Members List

Academic staff, in alphabetical order:

Prof M. E. Brinson: (visiting professor) mbrin72043@yahoo.co.uk
The rapid growth in everyday products which rely on electronic, communication and software technologies has largely driven a world wide expansion of research in these and related disciplines. Today the average person has come to expect ever increasing functionality from cheaper and cheaper high technology products. Current research in computer based product development relies heavily on the availability of software tools for the design and testing of next generation products. My current research interests centre on the development of software tools for modelling and performance testing of established and emerging technologies. Since 2006 I have been a member of the Qucs development team, specialising in device and circuit modelling, testing and document preparation. Qucs (Quite universal circuit simulator) is an open source sourceforge.net project whose primary mission is the development of a software package licensed under the GNU Public Licence (GPL) for circuit simulator, compact device modelling, and circuit macromodelling from DC to RF and beyond. Current research activity is concentrating on the development of VHDL, Verilog and Verilog-A component models linked to C++ based circuit simulator code via XML interfaces. Emerging CMOS, optical, thermal and mechanical technologies are also forcing new approaches to the software engineering of circuit simulators and their related graphical user interfaces. Work on these technologies and their successful integration within the framework of a universal circuit simulator forms the central core of my present research interests and proposed activities in the near future.

Mr Mike Cullinan: m.cullinan@londonmet.ac.uk
Mikes Cullinan's research at present is directed at the hardware implementation of Neural Networks (NN). Hardware implementation is still an active area for NN even though for application purposes most systems are emulated on conventional computers. Work is being carried out in to the development of a model for an analogue memory element. Using Equation Defined Device techniques the development of a Floating Gate MOSFET model is being created and investigated within the QUCS (Quite Universal Circuit Simulator) software. The model is built on the physical structure of the floating gate device, whereby an electrode is isolated within the oxide layer and charged and discharged through that oxide layer. The techniques being investigated for charging and discharging of the floating gate electrode are:

Fowler-Nordheim tunnelling, and
Hot-electron injection.

The development of this model is at present the basis of a Ph.D. thesis.

Dr Nick Ioannides: n.ioannides@londonmet.ac.uk
Dr Ioannides is an expert in optoelectronics and is establishing collaboration with a leading European based institution on nanotechnology. Research activities include: POF LAN and components; POF data links and bandwidth optimisation; and POF sensors.

Dr Demetri Kalymnios: (visiting researcher) d.kalymnios@tiscali.co.uk
Dr Kalymnios is an expert in Plastic Optical Fibres (POF) for data communications and sensors applications. Dr Kalymnios started this pioneering work in 1987, and was the one of the first in a UK institution. He has been involved with numerous consultancies and industrial research contracts dealing with POF. His current research activities include: POF LAN and components; POF data links and bandwidth optimisation; and POF sensors.

Dr Hassan Nabijou: h.nabijou@londonmet.ac.uk
One of the most important applications of Signal Processing and in particular Statistical Signal Processing is in Telecommunications Industry. Great deal of research work world wide is dedicated to address problems associated with the transmission, coding, modelling and detection of signals and systems in global communication networks. Current research projects Dr Nabijou is involved with are in the fields of Speech Recognition, Noise Reduction, Channel Equalisation, Acoustic Noise Control and Echo Cancellation. He's addressing these problems by means of Higher-order Statistics and Non-linear system modelling using Volterra functional series.

Mr Onadim Muhittin: m.onadim@londonmet.ac.uk
Mr Onadim's research and development projects are in the area of embedded systems, industrial automation, data acquisition, computer interfacing and control. He has worked on a number of industrial projects, including a probe positioning system for an electrochemical potential scanner, a digital count-down timer for a UV exposure unit and development of subsystems and firmware for a medical respirator. He has extensive experience on various phases of product development, ranging from basic design/prototyping to EMC/Safety testing.

Prof Algirdas Pakstas: a.pakstas@londonmet.ac.uk

Dr Shahram Salekzamankhani: s.salek@londonmet.ac.uk
A traditional way to improve security of wired computer network can be achieved by applying access control policies to the front door of network. However these policies may be not sufficient and effective any more when applied to the Wireless Local Area Networks (WLANs). WLANs are different from the traditional wired LANs in terms of their exposure to potential threats, vulnerability and security techniques. Intrusions to WLANs are facts of the everyday life and handling them becomes more and more difficult. Currently there is no standardised reference model which may help to design, compare and evaluate the existing or future Intrusion Handling Systems (IHSs) for WLANs. Analysis of the commercial IHSs shows that they all are built as a proprietary systems which are neither taking into consideration existence of other IHSs nor they are trying to find the ways to establish inter-IHS collaboration which may help to achieve better security for the end-users. Hence Mr Salekzamankhani's research work involves with analysing the features of existing IHSs for WLANs and further enhancing their design, and developing a novel reference model for a scalable distributed IHS architecture.

Dr Pancham Shukla: p.shukla@londonmet.ac.uk
Dr Shukla's research interested is in the area of signal and image processing. He has worked on mathematical signal/image processing and algorithm development for diverse application domains such as sampling and reconstruction, biomedical diagnostics and structural health monitoring.
In particular, Dr Shukla concentrates on Wavelet transforms and their applications. In addition to conventional theoretic approaches, Dr Shukla exploits state-of-the-art computing tool such as Matlab for efficient prototyping and simulations. His recent projects include audio denoising, ECG signal processing, biometric signal processing for security, image fusion, image inpainting, special effect image generation, sparse sampling and super-resolution imaging.

Prof Edward Steers: e.steers@londonmet.ac.uk
Prof Steers research work revolves around Atomic Spectroscopy. Prof. Steers was coordinator of the EC "Thematic Network" on analytical GD, and was the driving force for the current EU "Analytical GD Research Training Network", GLADNET, coordinated by EMPA (Thun, Switzerland). This has 16 partners throughout Europe, 10 "Early Stage Researcher" posts, and five postdoctoral "Experienced Researcher" posts, one based in CCTM. Prof. Steers coordinates one work package and is the Network Training Manager with overall responsibility for the training of appointed researchers. Prof. Steers closely collaborates with the Fourier Transform Spectroscopy Laboratory at Imperial College. He is a past chairman of the Spectroscopy Group of the Institute of Physics, and past chair of the Association of British Spectroscopists.

Dr Saeed R Taghizadeh: s.taghizadeh@londonmet.ac.uk
Dr Taghizadeh is an expert in signal processing and leads the Communications Technology cluster in the Faculty.

Dr S M Vaezi-Nejad: s.vaezi-nejad@londonmet.ac.uk
Dr Vaezi-Nejad's research activities are in Measurement Techniques, Instrumentation and Control. His current projects include the development of novel high-speed colour recognition systems, investigation into a novel acousto-optic transducer, antenna arrays for radio mobile communications and various aspects of power systems control. He is also researching into certain aspects of engineering education including industrial placement & the teaching of soft skills.

Professor Bal Virdee: b.virdee@londonmet.ac.uk
Professor Virdee's research interest covers wireless terrestrial and satellite microwave technology, e.g. 3G Mobile and WiMax. This technology provides ultra-high speed data rates necessary for real-time broadband communications. In particular, his research work is focussed on developing devices and sub-systems for next generation of wireless communications systems. His work includes: Reconfigurable devices, Techniques to suppress spurii in devices such as filters for electromagnetic compatible (EMC) systems, Photonic band-gap (PBG) miniature devices, Novel microstrip resonators for frequency selective applications using fractal, Metamaterial devices, Efficient high-power RF amplifiers, Ultra-broadband amplifiers, Novel RF high power amplifier design technique for cellular base-stations, Ultra-low noise tuneable reference oscillators with low phase noise, Broad tuning low noise voltage controlled oscillators (VCO), Efficient low-noise oscillators, Linear broadband highly efficient power amplifiers, Multimode filters, Ultra-broadband frequency discriminating devices, Low-profile miniature antennas, and UWB communications.

Mrs Joyce Wu: j.wu@londonmet.ac.uk
The femtocells concept aims to combine fixed-line broadband access with cellular telephony using the deployment of low cost, low power, cellular base stations in the subscribes home. However the deployment of a femtocell layer will impact the performance of the existing macrocells. The spectrum resources allocation and the interference avoidance are some of the challenges before femtocells are widely deployed. Mrs Wu's research involves analysing the interference between femtocells and macrocells in the context of OFDMA-based networks such as LTE and WiMAX. This includes investigation on how femtocells will affect each other, as well as power control and dynamic channel allocation strategies to mitigate interference.

Research students