Full-duplex wireless communication based on backscatter amplifier

In this paper, we propose a full-duplex wireless communication system by means of reflected power. Our concept is based on backscatter modulation (BM), where electromagnetic waves are modulated, amplified and reflected by the same antenna that receives them. We consider two nodes that wish to exchange data over wireless additive white Gaussian noise with Rayleigh fading channel. Within this framework the end-user receives self-interference free signal. The proposed system includes negative resistances to guarantee sufficient power for the demodulator while exhibiting maximal difference in the backscattered field. We analyze the performance of the proposed system and evaluate its ergodic capacity.