My Research Interests: In the next generation beyond 5G/6G wireless communications, the most important deployment scenario is extremely high mobility.  In such a high-mobility scenario, how to support efficient and reliable communication is a very challenging task.  My current research interest focuses on the design of low-complexity and energy-efficient waveforms/signals (e.g., OTFS, and ODDM) in high-mobility environments by applying advanced Mathematical tools (i.e., Ramanujan sums, Boolean functions, orthogonal transforms, z-transform, para-unitary matrices, and so on), which is of the strong interest in the next generation beyond 5G/6G. My current research broadly focuses on algebraic combinatorics, Number theory, and coding theory for wireless communications and signal processing. 

My thesis investigates the efficient design of complementary sets, complete complementary codes (CCC) with both equal and various sequence lengths, near-optimal zero correlation zone (ZCZ) sequence sets, and optimal Z-complementary code sets (ZCCS) by using advanced mathematical tools (e.g., generalized Boolean functions (GBFs), para-unitary matrices, z-transforms, etc). 

Shibsankar's Collaborators: