Survey of signal processing techniques for interference suppression in communication

Interferences of various kinds are of a major concern in communication system design and operation, since they could cause serious system performance deterioration. As the demand on communication resources, such as frequency spectrum, increases steadily, the desire for a more effective signal processing techniques for interference suppression resulting in efficient usage of resources becomes more important. This paper presents the results of a survey conducted on signal processing techniques and adaptive antenna arrays used for interference suppression applications. The interference types considered in this paper are jamming, adjacent channel interference (ACI), co-channel interference (CCI) and multi-access interference (MAI), and inter-symbol interference (ISI). A preliminary assessment of the impact of signal processing trends on the power spectral density, bandwidth, and spectrum packing efficiency is also presented in the paper.