In-Band Full-Duplex Dynamic Spectrum Sharing in Beyond 5G Networks

Dynamic spectrum sharing (DSS) has recently attracted keen interest from regulatory bodies around the world as a key strategy to overcome scarcity in beyond 5G networks. In United States, Federal Communications Commission adopted three-tier DSS model for Citizens Broadband Radio Service (CBRS) band managed by access system (SAS) share incumbents' with commercial cellular broadband applications. this article, we first present survey of current approaches and their limitations then discuss benefits using in-band full-duplex (IBFD) techniques To illustrate improvement performance priority license (PAL) general authorized (GAA) users an IBFD-assisted CBRS, consider CBRS mobile network (MBN) architecture comprising incumbent form MIMO radar IBFD MBN, consisting PAL GAA users. particular, design joint beamformers at constraints on transmit power MBN detection probability system, mitigate interference toward system. It is shown that not only leads improved users, but does so while producing less than state-of-the-art half-duplex solutions. Finally, some open research challenges invigorate