Radio resource management and optimization for space information network 并列题名：Radio resource management and optimization for space information network Topological modeling and visualization of space information networks Rchitecture and applications of space information networks 并列题名：Topological modeling and visualization of space information networks Human resource management and organizational behavior collection 并列题名：Rchitecture and applications of space information networks Research on planning, management and utilization of digital information resources Wireless resource sharing mechanism and optimization method for cooperative cellular access network Cooperative resource allocation for space-based information networks