Investigation of Distributed MIMO Communication and Localization Using a Low-Complex All-Digital Radio-Over-Fiber Testbed Architecture

Distributed MIMO (D-MIMO) is one of the most promising architectures for 6G wireless networks. Theoretical studies have demonstrated significant benefits of D-MIMO in terms of service uniformity, energy efficiency, and capacity. The practical realization of D-MIMO, however, is very challenging, as it requires extremely precise synchronization between the distributed antenna units. In this talk, we will present a low-complex D-MIMO testbed implementation founded on the use of an all-digital radio-over-fiber approach. Different implementations, covering both sub-6GHz and mm-wave implementations, will be presented and used to evaluate the potential advantages and challenges of D-MIMO versus today’s co-located MIMO solutions.