A Dynamic Spectrum Access Scheme for Unlicensed Systems Coexisting with Primary OFDMA Systems

In this paper, we consider Mobile WiMAX and LTE as the future technologies for primary OFDMA systems and study Dynamic Spectrum Access (DSA) for unlicensed systems coexisting with primary OFDMA systems. We propose an effective DSA scheme that allows an unlicensed system to statistically and opportunistically access the whole spectrum bandwidth during the… CONTINUE READING