4 papers
Decentralized Power Control for Over-the-Air Computation with Phase Noise
Martin Dahl, Erik G. Larsson
Estimation of uplink channels is required for coherent over-the-air computation (OAC). When channel estimation is done using calibrated reciprocity, the estimates are only availabl…
Joint Sensing and Bi-Directional Communication with Dynamic TDD Enabled Cell-Free MIMO
Anubhab Chowdhury, Sai Subramanyam Thoota, Erik G. Larsson
This paper studies integrated sensing and communication (ISAC) with dynamic time division duplex (DTDD) cell-free (CF) massive multiple-input multiple-output~(mMIMO) systems. DTDD…
Over-the-Air Fronthaul Signaling for Uplink Cell-Free Massive MIMO Systems
Zakir Hussain Shaik, Sai Subramanyam Thoota, Emil Björnson +1
We propose a novel resource-efficient over-the-air(OTA) computation framework to address the huge fronthaul computational and control overhead requirements in cell-free massive mul…
Ultra-Dense Cell-Free Massive MIMO for 6G: Technical Overview and Open Questions
Hien Quoc Ngo, Giovanni Interdonato, Erik G. Larsson +2
Ultra-dense cell-free massive multiple-input multiple-output (CF-MMIMO) has emerged as a promising technology expected to meet the future ubiquitous connectivity requirements and e…