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Power saving with CoMP transmission for densely deployed small cell networks

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Abstract

Small cell base stations (SBSs) are being developed as a way of expanding the coverage of cellular networks. However, the power consumption of small cell networks has become an acute problem. To mitigate this problem, we propose a new power-saving scheme based on coordinate multi-point (CoMP) transmission for densely deployed small cell networks. This scheme turns off lightly loaded SBSs and switches their users to the cooperative clusters formed by their neighbor SBSs. The cooperative clusters adopt the virtual multiple-input multiple-output (MIMO) technology to serve the users in the switched-off SBSs. To achieve high power-efficiency, we first model the power consumption of all the SBSs by considering the quality of service of users in the switched-off SBSs and then provide in-depth proofs and analysis according to characteristics of small cell networks. Our extensive simulation results show that the proposed algorithm improves system power-saving efficiency significantly.

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Notes

  1. Total small cell will grow from 85.1 million in 2016 to 526.2 million by 2021 [7].

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Acknowledgements

This research was supported in part by the Key Program of NSFC-Tongyong Union Foundation under Grant U1636209, the 111 Project under Grant B08038. Kang G Shin’s time on this paper was supported in part by the US National Science Foundation under Grant CNS-1160775.

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Authors and Affiliations

  1. Xidian University, Xi’an, China

    Linjing Zhao, Xiaonan Zhang & Ying Han

  2. University of Michigan, Ann Arbor, USA

    Kang G. Shin

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  1. Linjing Zhao
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  2. Xiaonan Zhang
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  3. Ying Han
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  4. Kang G. Shin
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Correspondence to Linjing Zhao.

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Zhao, L., Zhang, X., Han, Y. et al. Power saving with CoMP transmission for densely deployed small cell networks. J Supercomput 76, 8021–8039 (2020). https://doi.org/10.1007/s11227-018-2476-5

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  • DOI: https://doi.org/10.1007/s11227-018-2476-5

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