Theses
PhD/EngD (Engineering Doctorate) Research Thesis
This work considers resource management in the context of parallel, multiple, real-time video stream decoding, on many-core platforms. The targetted applications have dynamic and unpredictable characteristics. This, combined with the issue of resource contention in highly parallel systems make the problem of resource management very challenging. In this context, this thesis presents admission control techniques, blocking and application-aware runtime task allocation heuristics and a low-overhead fully distributed remapping technique in order to balance the predictability, resource utilisation and performance of the system.
MSc. (Digital Systems Engineering) Thesis/Final Project Report
This project report presents an implementation of audio decoding in the form of MP3 and ADPCM on an Field Programmable Gate Array (FPGA). The decoder is purely a software based sub-system of a larger embedded system – a music player. The hardware aspect of the embedded system is a custom designed PCB, incorporating an FPGA(Xilinx Spartan 3E), DAC, SDRAM, SDCard adapter, Colour LCD, PROMs and other surface mounted components. The MAD MP3 decoder and ADPCM libraries are investigated and successfully ported on to the Xilinx MicroBlaze platform and integrated with the overall system. Implementation of a bootloader for the system was explored – to convert the design into a standalone embedded system.
BSc. (Network and Communications Engineering) Thesis/Final Project Report
This thesis is concerned with the Digital modulation techniques used for the GSM and EDGE mobile communication systems. They are Gaussian Minimum Shift Keying and 8- Phase shift keying, respectively. First the Modems are broken down into subsections and their key properties are examined. Next computer simulations of the Modems are implemented, taking into consideration the strict standards set by 3GPP. The simulations will include scenarios where the Modulated signals are passed through a Multipath Fading channel and subjected to Additive White Gaussian Noise. Consequently the Bit Error rates are calculated at the output of the demodulators. The results obtained were used to critically analyse the two modulation schemes in terms of Bit Error Rate Performance, power spectra and distortion of the signal due to Inter-symbol Interference.