Comparison of LED illumination patterns for camera based car to car communications. - Rebecca Bates 002; Callum Geldard; Navid Bani Hassan; Andrew Burton; Pengfei Luo (CSNDSP, 2016)

A Study of Non-Orthogonal Multiple Access in Underwater Visible Light Communication Systems. - Callum Geldard; John S. Thompson; Wasiu O. Popoola (VTC Spring, 2018)

A Study of Spatial and Temporal Dispersion in Turbulent Underwater Optical Wireless Channel. - Callum T. Geldard; John S. Thompson; Wasiu O. Popoola (ConTEL, 2019)

Gbps underwater optical wireless communication in turbulence and random sea surface. - Wasiu O. Popoola; Egecan Guler; Jianming Wang; Callum Geldard (IoL@MobiSys, 2021)

Performance Analysis of Angular Diversity Receivers in Multi-Cell VLC Systems. - Ryo Harada; Callum T. Geldard; Wasiu O. Popoola (GLOBECOM, 2023)

Experimental Study of Wavy Surface Effects on Uplink Water-Air Optical Camera Communication. - Behnaz Majlesein; Callum T. Geldard; Victor Guerra; J. M. Luna-Rivera; Julio Francisco Rufo Torres; Wasiu O. Popoola; José Rabadán (MobiCom, 2023)

Performance Analysis of Angular Diversity Receivers in Visible Light Communications. - Ryo Harada; Callum T. Geldard; Wasiu O. Popoola (PIMRC, 2023)

Experimental Comparison of Modulation Techniques for LED-based Underwater Optical Wireless Communications. - Minqing Yu; Callum T. Geldard; Wasiu O. Popoola (WCNC, 2023)

3-D-Hierarchical Signalling for Resilient Optical Wireless Communication Systems. - Egecan Guler; Callum T. Geldard; Iain Butler; Trio Adiono; Wasiu O. Popoola (IEEE Open J. Commun. Soc., 2023)

On the Relative Effect of Underwater Optical Turbulence in Different Channel Conditions. - Callum T. Geldard; John S. Thompson; Wasiu O. Popoola (IEEE Access, 2024)