Björn E. Ottersten

Distributed Receive Beamforming for Multi-Satellite Networks With Multiple Ground-Based Nodes Under Fronthaul Constraints

Future multi-satellite networks can enhance downlink reliability through cooperative reception at geographically distributed ground nodes (GNs), but limited fronthaul restricts centralized signal collection and instantaneous channel state information (CSI) exchange. We develop distributed beamforming where GNs combine...

CORDIS: A Scalable Coordinated Resource Allocation Framework for Distributed Cell-Free ISAC

Two algorithms are developed: CORDIS-Split, a low-overhead scheme that pairs fixed local beamformers with centralized power allocation, and CORDIS-ADMM, which jointly optimizes beamforming and power through the consensus Alternating Direction Method of Multipliers (ADMM).

Universal Intelligent Small Cell for Next Generation Cellular Networks