Symbiotic Backscatter Communication Underlying a Cell-Free Massive MIMO System

Ataeeshojai, Mahtab; Elliott, Robert C.; Krzymien, W.A.; Tellambura, Chintha; Maljević, Ivo

doi:10.1109/jiot.2023.3270121

Cited by 6 publications

(1 citation statement)

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“…As an alternative, NAFD CF-mMIMO networks can be deployed, where certain APs are designated for the target sensing, while the remaining APs are allocated for communication purposes. Inspired by the WPT efficiency of CF-mMIMO, which is due to the significantly lower average distance between the energy sources and receiver, the coexistence of cell-free and symbiotic backscatter communication was investigated in [271], [272]. The underlaid backscatter devices utilize ambient "legacy" radio signals from the cell-free network as both a harvested energy source and a carrier on which to modulate data.…”

Section: Miscellaneous Topicsmentioning

confidence: 99%

Next Generation Multiple Access with Cell-Free Massive MIMO

Mohammadi,

Mobini,

Ngo

et al. 2023

Preprint

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<p>To meet the unprecedented mobile traffic demands of future wireless networks, a paradigm shift from conventional cellular networks to distributed communication systems is imperative. Cell-free massive multiple-input multiple-output (CF-mMIMO) represents a practical and scalable embodiment of distributed/network MIMO systems. It inherits not only the key benefits of co-located massive MIMO systems but also the macro-diversity gains from distributed systems. This innovative architecture has demonstrated significant potential in enhancing network performance from various perspectives, outperforming co-located mMIMO and conventional small-cell systems. Moreover, CF-mMIMO offers flexibility in integration with emerging wireless technologies such as full-duplex (FD), non-orthogonal transmission schemes, millimeter-wave (mmWave) communications, ultra-reliable low-latency communication (URLLC), unmanned aerial vehicle (UAV)-aided communication, and reconfigurable intelligent surfaces (RISs). In this paper, we provide an overview of current research efforts on CF-mMIMO systems and their promising future application scenarios. We then elaborate on new requirements for CF-mMIMO networks in the context of these technological breakthroughs. We also present several current open challenges and outline future research directions aimed at fully realizing the potential of CF mMIMO systems in meeting the evolving demands of future wireless networks.</p>

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Section: Miscellaneous Topicsmentioning

confidence: 99%