Abdalla G. M. Ahmed

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We describe a novel technique for the fast production of large point sets with different spectral properties. In contrast to tile-based methods we use so-called AA Patterns: ornamental point sets obtained from quantization errors. These patterns have a discrete and structured number-theoretic nature, can be produced at very low costs, and possess an(More)
A thorough comparison is made between the different implementation schemes of Space-Time and Space-Frequency Block Coded OFDM, showing the features of each alternative, and suggesting typical situations where it excels. New designs are also introduced to complete the comparison set. The issue of mixing diversity modes is addressed, too.
We present a new idea for the algorithmic design of weaving patterns that is based on AA Outlines. The method takes advantage of their inherent property of having only a few distinct rows and columns. In contrast to a prior Bridges paper, we describe a new approach for extracting weaving patterns from AA Outlines, and we add colors of yarns as a design(More)
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