  In this paper, the effects of oscillator phase-noise with arbitrary spectral
characteristics on self-interference cancellation capability of a full-duplex
radio transceiver are addressed, and design considerations are given for
oscillator designers for optimized PLL design for full-duplex radio
application. The paper first gives a full-duplex transceiver model that
inherently mitigates most of the phase-noise effect from the self-interference
signal. The remaining effect of the phase noise is then analysed. Closed-form
solutions for the self-interference power are then derived. In the simulations
part, a practical phase-locked loop type oscillator is used, which is based on
the arbitrary mask phase-noise model. Analytical derivations are verified with
the simulations, and the self-interference cancellation performance is
thoroughly studied with various parameters. Design considerations are finally
given for oscillator design for full-duplex radio transceivers, with the help
of tangible parameters of the phase-locked loop type oscillators.
