5G On-Demand SI Acquisition Framework and Performance Evaluation

Weiyu, Yang; Lin, Kuang-Hsun; Wei, Hung‐Yu

doi:10.1109/access.2019.2952659

Cited by 5 publications

(1 citation statement)

References 11 publications

(21 reference statements)

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“…• The minimum required system information (SI) broadcast in 3GPP NR has also been reduced with respect to 3GPP LTE, and the part not strictly necessary for network entry is transmitted on-demand now [135].…”

Section: A Time-domain Energy Saving Solutionsmentioning

confidence: 99%

A Survey on 5G Radio Access Network Energy Efficiency: Massive MIMO, Lean Carrier Design, Sleep Modes, and Machine Learning

Liu¹,

Domenico²,

Piovesan³

et al. 2021

Preprint

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Cellular networks have changed the world we are living in, and the fifth generation (5G) of radio technology is expected to further revolutionise our everyday lives, by enabling a high degree of automation, through its larger capacity, massive connectivity, and ultra-reliable low latency communications.In addition, the third generation partnership project (3GPP) new radio (NR) specification also provides tools to significantly decrease the energy consumption and the green house emissions of next generations networks, thus contributing towards information and communication technology (ICT) sustainability targets. In this survey paper, we thoroughly review the state-of-the-art on current energy efficiency research. We first categorise and carefully analyse the different power consumption models and energy efficiency metrics, which have helped to make progress on the understanding of green networks. Then, as a main contribution, we survey in detail -from a theoretical and a practical viewpoint-the main energy efficiency enabling features that 3GPP NR provides, together with their main benefits and challenges. Special attention is paid to four key technology features, i.e., massive multiple-input multiple-output (MIMO), lean carrier design, and advanced idle modes, together with the role of artificial intelligence capabilities. We dive into their implementation and operational details, and thoroughly discuss their optimal operation points and theoretical-trade-offs from an energy consumption perspective. This will help the reader to grasp the fundamentals of -and the status on-green networking. Finally, the areas of research where more effort is needed to make future networks greener are also discussed.

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Section: A Time-domain Energy Saving Solutionsmentioning

confidence: 99%