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Telecommunications

Energy-efficient wireless communications

Nature Reviews Electrical Engineering volume 1, page 77 (2024)Cite this article

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Multiple input, multiple output (MIMO) is a type of wireless communication technology that uses several antennas at both the transmitters and receivers to send and receive data. In massive MIMO, the number of antennas can reach thousands in a single array. The use of such large antenna arrays enables the wireless communication system to transmit and receive large amounts of data simultaneously, which can remarkably improve the data throughput, reduce latency, and increase the overall reliability of the wireless network.

However, achieving these benefits come at a cost of reduced energy efficiency. This is because processing signals simultaneously from numerous antennas needs additional computation loads and dynamic resource allocation, leading to high energy consumption. To address the energy efficiency challenge, writing in IEEE Journal on Selected Areas in Communications, Özlem Tuğfe Demir et al. integrate cell-free massive MIMO technology into the open radio access network (ORAN) for optimal network performance with minimal energy consumption.

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Original article:

  • Demir, Ö. T., Masoudi, M., Björnson, E. & Cavdar, C. Cell-free massive MIMO in O-RAN: energy-aware joint orchestration of cloud, fronthaul, and radio resources. IEEE J. Sel. Areas Commun. 42, 356–372 (2024)

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  1. Nature Reviews Electrical Engineering https://www.nature.com/natrevelectreng/

    Lishu Wu

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  1. Lishu Wu
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Correspondence to Lishu Wu.

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Wu, L. Energy-efficient wireless communications. Nat Rev Electr Eng 1, 77 (2024). https://doi.org/10.1038/s44287-024-00027-8

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  • DOI: https://doi.org/10.1038/s44287-024-00027-8

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