The Power Delay Profile of the Single-Antenna Full-Duplex Self-Interference Channel in Indoor Environments at 2.6 GHz

In this letter, the power delay profile (PDP) of the single-antenna full-duplex self-interference channel (SIC) is investigated in the indoor environments. The measurements are performed at the center frequency of 2.6 GHz with 200 MHz bandwidth. We find that the PDP can be decomposed into three components: leakage path, antenna reflection path, and space multipath. The major effects in determining the leakage path and the antenna reflection path are analyzed. Furthermore, the model of the profiles of the leakage path and the antenna reflection path is derived. The space multipath can be modeled as a power-law decay plus a random variable with lognormal statistics.