Spectral sharing in multi-system environments via multi-carrier CDMA

Abstract

In this work, the authors introduce the concept of spectral sharing in multi-system environments by application of MC-CDMA technology. The proposed MC-CDMA system supports spectral sharing via dynamic carrier allocation: the orthogonal carriers that make up a transmit signal are borrowed/shared between multiple systems. The resulting system not only supports increased spectral efficiency, but simulations indicate improved BER performance as well. It is hoped that this exploration (of how today's emerging multi-carrier multi-access technology enable spectral exchange) will serve as a useful beginning in the emergence of a highly efficient spectral exchange.