Mobile Distributed MIMO (MD-MIMO) for NextG: Mobility Meets Cooperation in Distributed Arrays

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Main Authors: Said, Karim A., Liang, Yibin, Saeed, Usama, Safavinejad, Ramin, Bondada, Kumar Sai, Allen, Evan, Mohammadi, Nima, Pimentel, Benjamin, Kelley, Brian, Reed, Jeff, Tripathi, Nishith, Buehrer, Michael, Yang, Yi, Jakubisin, Daniel, Liu, Lingjia
Format: Preprint
Published: 2025
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author Said, Karim A.
Liang, Yibin
Saeed, Usama
Safavinejad, Ramin
Bondada, Kumar Sai
Allen, Evan
Mohammadi, Nima
Pimentel, Benjamin
Kelley, Brian
Reed, Jeff
Tripathi, Nishith
Buehrer, Michael
Yang
Yi
Jakubisin, Daniel
Liu, Lingjia
author_facet Said, Karim A.
Liang, Yibin
Saeed, Usama
Safavinejad, Ramin
Bondada, Kumar Sai
Allen, Evan
Mohammadi, Nima
Pimentel, Benjamin
Kelley, Brian
Reed, Jeff
Tripathi, Nishith
Buehrer, Michael
Yang
Yi
Jakubisin, Daniel
Liu, Lingjia
contents Distributed multiple-input multiple-output (D\mbox{-}MIMO) is a promising technology to realize the promise of massive MIMO gains by fiber-connecting the distributed antenna arrays, thereby overcoming the form factor limitations of co-located MIMO. In this paper, we introduce the concept of mobile D-MIMO (MD-MIMO) network, a further extension of the D-MIMO technology where distributed antenna arrays are connected to the base station with a wireless link allowing all radio network nodes to be mobile. This approach significantly improves deployment flexibility and reduces operating costs, enabling the network to adapt to the highly dynamic nature of next-generation (NextG) networks. We discuss use cases, system design, network architecture, and the key enabling technologies for MD-MIMO. Furthermore, we investigate a case study of MD-MIMO for vehicular networks, presenting detailed performance evaluations for both downlink and uplink. The results show that an MD-MIMO network can provide substantial improvements in network throughput and reliability.
format Preprint
id arxiv_https___arxiv_org_abs_2504_12244
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Mobile Distributed MIMO (MD-MIMO) for NextG: Mobility Meets Cooperation in Distributed Arrays
Said, Karim A.
Liang, Yibin
Saeed, Usama
Safavinejad, Ramin
Bondada, Kumar Sai
Allen, Evan
Mohammadi, Nima
Pimentel, Benjamin
Kelley, Brian
Reed, Jeff
Tripathi, Nishith
Buehrer, Michael
Yang
Yi
Jakubisin, Daniel
Liu, Lingjia
Signal Processing
Distributed multiple-input multiple-output (D\mbox{-}MIMO) is a promising technology to realize the promise of massive MIMO gains by fiber-connecting the distributed antenna arrays, thereby overcoming the form factor limitations of co-located MIMO. In this paper, we introduce the concept of mobile D-MIMO (MD-MIMO) network, a further extension of the D-MIMO technology where distributed antenna arrays are connected to the base station with a wireless link allowing all radio network nodes to be mobile. This approach significantly improves deployment flexibility and reduces operating costs, enabling the network to adapt to the highly dynamic nature of next-generation (NextG) networks. We discuss use cases, system design, network architecture, and the key enabling technologies for MD-MIMO. Furthermore, we investigate a case study of MD-MIMO for vehicular networks, presenting detailed performance evaluations for both downlink and uplink. The results show that an MD-MIMO network can provide substantial improvements in network throughput and reliability.
title Mobile Distributed MIMO (MD-MIMO) for NextG: Mobility Meets Cooperation in Distributed Arrays
topic Signal Processing
url https://arxiv.org/abs/2504.12244