Committee: 

Dr. Bloch, Advisor

Dr. Ralph, Chair

Dr. Barry

Abstract:

The objective of the proposed research is to develop low-complexity coding schemes for covert communication over discrete memoryless channels and additive white Gaussian noise channels and for covert information reconciliation. Leveraging the recent research on the optimality of pulse-position modulation for covert communication, we have developed a low-complexity coding scheme for covert communication over discrete memoryless channels using multilevel coding and pulse-position modulation. The proposed scheme achieves the covert capacity of discrete memoryless channels.