Mohmed AbdulaliDurham University | DU · Centre for Communications Science
Mohmed Abdulali
Doctor of Philosophy
About
11
Publications
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Introduction
I am currently enrolled as a Ph.D. student in the Centre of Communications systems at Durham University. The focus of the Ph.D. has been the use of MIMO channels to achieve the direct ovality of the millimeter-wave mmWave pedestrian channel model for frequency bands (0.2GHz -90GHz).
Publications
Publications (11)
This paper focuses on assessing snowfall attenuation
through the collection and analysis of snowfall data. A
PWS100 Weather Sensor station was installed on the roof
of the library at Durham University to record precipitation
data. A mm-Wave channel sounder was employed,
operating at two frequencies (25.84 GHz and 77.54 GHz),
to measure attenu...
This paper presents eight by eight MIMO measurements in a factory environment for both line of sight (LoS) and non-line of sight (NLoS) scenarios at 25 GHz using eight directional antennas at the transmitter and at the receiver with the custom-designed channel sounder developed at Durham University. The data were analysed to estimate the Rician K-f...
This paper presents the results of parameter measurements in two indoor environments for both line of sight (LoS) and non-line of sight (NLoS) scenarios at 25 GHz using multiple directional antennae at the transmitter and a single omnidirectional antenna at the receiver (MISO) with the custom-designed channel sounder developed at Durham University....
This paper presents results of wideband channel measurements at 39 GHz and 70 GHz in a typical indoor office environment. Measurements were carried out using Durham University's multi-band frequency modulated continuous wave channel sounder. The propagation characteristics at different angular orientations are estimated and compared for both freque...
This paper presents results of path loss measurements, in two indoor environments for both LoS and NLoS scenarios across a frequency range from 0.6-73 GHz using the multi-band custom designed channel sounders developed at Durham University. The data are analysed to estimate the path loss parameters for each frequency band with either the close in p...
The paper presents an approach to dimension Circuit Switched networks and find the relationship between the parameters of the Circuit Switched networks on the condition of specific probability of call blocking. Our work is creating a Simulation code based on Erlang (B) formula to draw graphs which show two curves for each graph; one of simulation a...
In this paper, a visible and removable watermarking scheme in Discrete Wavelet Transform (DWT) domain is presented. Watermark and original images are decomposed up to 3-levels using discrete wavelet transform. It will be compressed by taken the percentage of largest coefficients from each image depend on compression ratio and quality of reconstruct...
