Computer Engineering
Active Research areas during the year under review include optimisation of efficiency of earth electrodes, applications of ANN to power systems, application of RNS in bioinformatics.
digital signal processing, logic test economics, sensor networks, surface plasmon resonance, smart metering, and product design and development for local applications. In the area of product development, prepayment metre, designed and developed by staff and students of the Department for local application, was improved upon.
The following are the research grouping in the Department of Computer Engineering;
The Computer Systems and Information Security (CSIS) Research Group
Computer Systems encompasses a broad spectrum of research projects that address all aspects of reliable, testable, secure, high-performance Computer systems. In the area of information security, computer engineers are developing novel methods for protecting digital images, music, and other information from errors in transmission or storage, copyright infringement and other forms of tampering. Coding theory is used to detect and correct errors caused by distortions in the transmission or storage of digital information, or to compress information.
Embedded Systems, Robotics and Computer Vision (ERCV) Research Group
Computer engineers working in this area focus on enhancing the speed, reliability, and performance of systems, by means of computer technology - for example, consumer products, and business and industrial machines. This section also focuses on (a) visual sensing, in which images of a scene are taken as input and estimates of the three-dimensional characteristics of the scene are output, (b) representation, which addresses efficient visual depiction and communication of the environment, and (c) manipulation of the environment, in which the acquired three-dimensional information is used to perform tasks such as navigation and assembly.
VLSI Design, Testing, and Computer Aided Design (VT&CAD Group
Computer engineers working in this area focus on enhancing the speed, reliability, and energy efficiency of next-generation Very Large-Scale Integration (VLSI) circuits and micro systems, as well as automating the design process. Projects might include low-power VLSI algorithms and architectures ,noise-tolerance for VLSI and Digital Signal Processors (DSP) mixed-signal analog Integrated Circuit (IC) design, Micro Electro Mechanical Systems (MEMS) for integrated passive RF (radio frequency) components, etc.
The first two VLSI chips designed in a laboratory equipped with the support of Texas Instruments Inc. of USA. The chips have power management and biomedical applications.
Networks, Mobile Computing and Distributed Systems (NMCD) Research Group
This group of researchers focus on building integrated environments for computing, communication, and information access over heterogeneous underlying technologies. Communications systems and networks (with particular retention to wireless), modulation and error-control coding ,and information theory. Wireless communication to take advantage of new frequency bands and increase the efficiency of current bands. Also design techniques for high-speed networks, interference suppression and modulation, design and analysis of fault-tolerant systems, and storage and transmission schemes.
Operating Systems, Compilers and Computer Simulations (OCCS) Research Group
This group focuses on the compilers and operating systems design, future computer operating systems, libraries, and applications to be automatically customised for each deployment environment. New operating system architectures, transparent programme analysis techniques, post-link-time code transformation algorithms, and novel quality assurance techniques. Application of computational methods to formulate and solve complex mathematical problems in engineering and in the physical and social sciences. Computer simulation methods for all kinds of systems, and effective display techniques to communicate the computational results to the user.
Signal, Image, and Speech Processing (SISP) Research Group
Computer engineers working in this group focuses on developing improvements in human-computer interaction, speech recognition and synthesis, medical and scientific imaging. Also they focus on communications systems. Speech and language engineering to understand human language faculties and to develop computer systems with comparable faculties.
The following are some completed research projects by the Department
- A Smith-Waterman Algorithm Accelerator Based on Residue Number System.
- Improving the Effectiveness of the media filter.
- Server-aided Public key signatures for diverse network devices.
- Design of multi cavities on Left-Handed Photonic-Crystal-Based chemical sensors.
- Numerical analysis of a Photonic Crystal Fiber for Bio sensing Applications.
- The impact of mobile nodes arrival patterns in MANET’s using poisson models.
- The effect of the number of mobile nodes on varying speeds of MANETS.
- Comparing the impact of mobile nodes arrival patterns in manets using poisson and pareto models.
- Forecasting foreign exchange rates using neural network.
- Data fitting to hata Okumura propagation model using least square algorithm.
- Effect of path loss on received signal.
- Macro-cell antenna down-tilt to field data study in Ghana.
- Weather effect of Ku Band Digital Satellite television system.
- Radio planning and field trial management of a deployed 4G WiMAX network in an urban sub-Saharan African Environment.
- Small scale fading characteristics in cellular networks in Ghana.
- Smart metering: a GSSM approach in Ghana.
- Assisting network contrivances with public key signatures.
- Design and analysis of photonic crystal fibres (PCF’s) for broadband applications.
- A highly sensitive photonic crystal fibre (PCF) surface plasmon resonance (SPR) sensor based on a bimetallic structure of gold and silve
- A planar waveguide surface plasmon resonance biosensor based on Otto configuration.
- Access to internet connectivity; the major bottleneck to the adaptation of technology- enabled education.
integrated environments for computing, communications, and information access over heterogeneous underlying technologies. Communications systems and networks (with particular attention to wireless), modulation and error-control coding, and information theory. Wireless communication to take advantage of new frequency bands and increase the efficiency of current bands. Also design techniques for high-speed networks, interferences up pression and modulation, design and analysis of fault- tolerant systems, and storage and transmission schemes.
Operating Systems, Compilers and Computer Simulations (OCCS) Research Group
The group focuses on the compilers and operating systems design future computer operating systems, libraries, and applications to be automatically customised for each deployment environment. New operating system architectures, transparent program analysis techniques, post-link-time code transformation algorithms, and novelquality assurance techniques. Application of computational methods to formulate and
solve complex mathematical problems in engineering and in the physical and social sciences. Computer simulation methods for all kinds of systems, and effective display techniques to communicate the computational results to the user.
Signal, Image, and Speech Processing (SISP) Research Group
Focus on developing improvements in human-computer interaction, speech recognition and synthesis, medical and scientific imaging, or communications systems. Speech and language engineering to understand human language faculties and to develop computer systems with comparable faculties.
The following are some completed research projects by the department
- A Smith-Waterman Algorithm Accelerator Based on Residue Number System
- Improving the Effectiveness of the media filter
- Server-aided Public key signatures for diverse network devices
- Design of multi cavities on Left-Handed Photonic-Crystal-Based chemical sensors
- Numerical analysis of a Photonic Crystal Fiber for Bio sensing Applications
- The impact of mobile nodes arrival patterns in MANET’s using poisson models
- The effect of the number of mobile nodes on varying speeds of MANETS
- Comparing the impact of mobile nodes arrival patterns in manets using poisson and pareto models
- Forecasting foreign exchange rates using neural network
- Data fitting to hata Okumura propagation model using least square algorithm
- Effect of path loss on received signal
- Macro-cell antenna down-tilt to field data study in Ghana.
- Weather effect of Ku Band Digital Satellite television system.
- Radio planning and field trial management of a deployed 4G WiMAX network in an urban sub-Saharan African Environment.
- Small scale fading characteristics in cellular networks in Ghana
- Smart metering: a GSSM approach in Ghana
- Assisting network contrivances with public key signatures
- Design and analysis of photonic crystal fibres (PCF’s) for broadband applications
- A highly sensitive photonic crystal fibre (PCF) surface plasmon resonance (SPR) sensor based on a bimetallic structure of gold and silver
- A planar waveguide surface plasmon resonance biosensor based on Otto configuration
- Access to internet connectivity; the major bottleneck to the adaptation of technology-enabled education