Interference Analysis and Mitigation Techniques for Multiple Cognitive Systems in Ka-band

Abstract

Cognitive Radio applications in satellite communications be- come a challenging and promising research owing to limitations over the available spectrum. Broadband satellite services con- tinuously call for extra band resources, especially in Ka-band. The coexistence among multiple systems including two satellites systems and terrestrial networks sharing the band (17.7 - 18.1 GHz) is proposed. Co-operative and Non co-operative spectrum sensing approaches are investigated using Energy Detection and Matched Filter techniques to detect harmful interferences over both Gaussian and Rayleigh fading channels. An independent