In this paper, we investigate the optimal design of a wireless-powered covert communication (WP-CC) system, where full-duplex (FD) receiver transmits artificial noise (AN) to simultaneously charge an energy-constrained transmitter and confuse warden’s detection on transmitter’s activity. order achieve higher level covertness, propose probabilistic accumulate-then-transmit (ATT) protocol, is abl...

Braun multiplier is one of the parallel array multipliers, which is used for unsigned numbers multiplication. This paper presents different techniques for optimizing the multiplier in power and delay parameters. The dynamic power of a multiplier can be reduced by using bypassing techniques and delay can be reduced by replacing ripple carry adder in the last stage of full adders by optimized add...