Abstract

A blind solution to analog interference cancellation is proposed for scenarios where the interference source is known at the receiver. Beyond conventional solutions, the proposed interference cancellation scheme has two merits: 1) it is implemented with analog signal processing, which is suitable for the systems with extremely strong interference and 2) it does not need any training process for adjusting parameters of analog devices, which reduces the computational complexity and time delay. For the purpose of performance evaluation, the power spectral density expressions are formulated in closed form for the desired signal and the interference components after the proposed blind interference cancellation. Furthermore, illustrative numerical results not only substantiate the outstanding performance of the proposed scheme, specifically in the case of strong interference, but also provide useful principles for the pulse shaping filter design in the transceiver.