{"ID":2882658,"CreatedAt":"2026-06-01T04:54:23.091178241Z","UpdatedAt":"2026-06-01T04:54:23.091178241Z","DeletedAt":null,"paper_url":"https://arxiv.org/abs/2508.09546","arxiv_id":"2508.09546","title":"Low-latency D-MIMO Localization using Distributed Scalable Message-Passing Algorithm","abstract":"Distributed MIMO and integrated sensing and communication are expected to be key technologies in future wireless systems, enabling reliable, low-latency communication and accurate localization. Dedicated localization solutions must support distributed architecture, provide scalability across different system configurations and meet strict latency requirements. We present a scalable message-passing localization method and architecture co-designed for a panel-based distributed MIMO system and network topology, in which interconnected units operate without centralized processing. This method jointly detects line-of-sight paths to distributed units from multipath measurements in dynamic scenarios, localizes the agent, and achieves very low latency. Additionally, we introduce a cycle-accurate system latency model based on implemented FPGA operations, and show important insights into processing latency and hardware utilization and system-level trade-offs. We compare our method to a multipath-based localization method and show that it can achieve similar localization performance, with wide enough distribution of array elements, while offering lower latency and computational complexity.","short_abstract":"Distributed MIMO and integrated sensing and communication are expected to be key technologies in future wireless systems, enabling reliable, low-latency communication and accurate localization. Dedicated localization solutions must support distributed architecture, provide scalability across different system configurat...","url_abs":"https://arxiv.org/abs/2508.09546","url_pdf":"https://arxiv.org/pdf/2508.09546v1","authors":"[\"Dumitra Iancu\",\"Liang Liu\",\"Ove Edfors\",\"Erik Leitinger\",\"Xuhong Li\"]","published":"2025-08-13T07:05:08Z","proceeding":"eess.SP","tasks":"[\"eess.SP\",\"cs.AR\"]","methods":"[]","has_code":false}