Poly-polarization Multiplexing Scheme for Satellite Communications

Abstract

This paper proposes a novel transmission scheme that enhances the spectrum efficiency by exploiting multiple polarization planes. Unlike the conventional polarization usage that secures orthogonality, the proposed scheme transmits signals through more than 2 polarization planes and enhances spectrum efficiency in proportion to the number of the polarization planes. Degradation caused by cross polarization interference is restored by applying digital signal processing techniques. As a result of computer simulations, we have clarified that the proposed scheme improves required Eb/N0 by about 1dB and 1.4dB without / with FEC, respectively, when three polarizations are simultaneously transmitted.