arxiveess.SPcs.IT2026-07-16
Modular-CAPA-Based Communication Systems: Joint Activation and Beamforming Design
Mengyu Qian, Xidong Mu, Li You, Michail Matthaiou
A modular continuous aperture array (CAPA)-based multi-user communication system is investigated, where only a portion of the aperture, namely sub-CAPAs, is activated to serve users. The signal model for the proposed modular CAPA is first introduced. Based on this model, a spectr…