  We propose a novel fifth-generation (5G) rapid prototyping (RaPro) system
architecture by combining FPGA-privileged modules from a software defined radio
(or FPGA-coprocessor) and high-level programming language for advanced
algorithms from multi-core general purpose processors. The proposed system
architecture exhibits excellent flexibility and scalability in the development
of a 5G prototyping system. As a proof of concept, a multi-user full-dimension
multiple-input and multiple-output system is established based on the proposed
architecture. Experimental results demonstrate the superiority of the proposed
architecture in large-scale antenna and wideband communication systems.
