Thesis Defence: Binary Decomposition and Transmission Schemes for The Optical Intensity Multiple Access Channel

Ahmad Abdel-Qader, supervised by Dr. Anas Chaaban, will defend their thesis titled “Binary Decomposition and Transmission Schemes for The Optical Intensity Multiple Access Channel” in partial fulfillment of the requirements for the degree of Master of Applied Science in Electrical Engineering.

An abstract for Ahmad Abdel-Qader’s thesis is included below.

Defences are open to all members of the campus community as well as the general public. Registration is not required for in person defences.

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ABSTRACT

In the field of optical communications, designing capacity-achieving codes is crucial for high-speed, and high reliability data transmission for multiple users. This thesis presents a practical coding scheme tailored specifically for Optical Intensity Multiple Access Channels (OIMACs). The innovative contribution is the binary decomposition of the OIMAC into a collection of N bit-pipes, resulting in the formation of the Vector Binary Multiple Access Channel (VBMAC). The research outlines five distinct coding schemes for the VBMAC, detailing the encoding and decoding processes, along with the
achievable rates for each scheme. Performance evaluations of these schemes are presented while adhering to practical constraints. Compared to capacity and bounds, the devised coding schemes show promising results, which closely approximates capacity at moderate and high Signal-to-Noise Ratio (SNR) levels. This work signifies a pivotal step towards improving the efficiency and reliability of multiple access channel transmissions, meeting the increasing demand for robust and high-capacity communication systems.