Full-Duplex Media-Based Modulation

Media-based modulation (MBM) is an attractive modulation scheme that offers MIMO benefits by placing digitally controlled parasitic elements as radio frequency (RF) mirrors near the transmit antenna. Different realizations of the ON/OFF status of these mirrors result in different channel fades which constitute the channel modulation alphabet. In this paper, we investigate full-duplex (FD) communication using MBM. First, we study full-duplex MBM (FD-MBM) scheme with full channel state information (CSI). Our numerical results show that, for the same spectral efficiency, FD-MBM outperforms FD with conventional modulation (FD-CM). Next, in order to relax the full CSI assumption, we investigate FD with differential MBM (FD-DMBM) with no CSI/partial CSI, where partial CSI refers to the availability of either self-interference CSI or desired-signal CSI. We propose detectors for the FD-DMBM with no CSI/partial CSI and illustrate their bit error performance.