Massive MIMO (Multiple-Input Multiple-Output) is a wireless hardware architecture that deploys a very large number of antenna elements (typically tens to hundreds) at a base station or access point to simultaneously serve multiple users and resolve fine-grained spatial information through beamforming and spatial multiplexing. In the context of ISAC and 6G research, massive MIMO is foundational because the large antenna aperture provides high angular resolution and spatial degrees of freedom that enable precise environmental sensing — including localization, channel mapping, and target detection — alongside high-capacity communications. Key variants include co-located massive MIMO, where all antennas are physically grouped at a single site, and distributed or cell-free massive MIMO, where antenna elements are spread across a coverage area, the latter being particularly relevant to radio radiance field representations that model spatially continuous wireless channel behavior.
Source Papers
- Integrated Sensing and Communications: Toward Dual-Functional Wireless Networks for 6G and Beyond ↗ — Integrated Sensing and Communications: Toward Dual-Functiona
- Radio Radiance Field: The New Frontier of Spatial Wireless Channel Representation ↗ — Radio Radiance Field: The New Frontier of Spatial Wireless C