Maximum Distance of Fronthaul in 5G Millimeter Wave Communications 


Vol. 43,  No. 11, pp. 1813-1818, Nov.  2018
10.7840/kics.2018.43.11.1813


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  Abstract

Currently, base stations composed of a digital unit (DU) and radio units (RUs) are widely used in wireless communication networks. In this architecture, the link between a DU and RUs are referred to as fronthaul. The length of fronthaul is not limitless but limited by the operation of closed-loop MIMO (multiple input multiple output). In this paper, we analyze the maximum limit of fronthaul mathematically and reveal that the length of fronthaul is very short in 5G millimeter wave. Our results show that the base stations based on the fronthaul scheme can accommodate the users only moving under 10 km/h in 28-GHz frequency band. The maximum limit of the fronthaul is 8~10 km depending on the delay of DU and RU.

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  Cite this article

[IEEE Style]

S. Kim, "Maximum Distance of Fronthaul in 5G Millimeter Wave Communications," The Journal of Korean Institute of Communications and Information Sciences, vol. 43, no. 11, pp. 1813-1818, 2018. DOI: 10.7840/kics.2018.43.11.1813.

[ACM Style]

Sung-Man Kim. 2018. Maximum Distance of Fronthaul in 5G Millimeter Wave Communications. The Journal of Korean Institute of Communications and Information Sciences, 43, 11, (2018), 1813-1818. DOI: 10.7840/kics.2018.43.11.1813.

[KICS Style]

Sung-Man Kim, "Maximum Distance of Fronthaul in 5G Millimeter Wave Communications," The Journal of Korean Institute of Communications and Information Sciences, vol. 43, no. 11, pp. 1813-1818, 11. 2018. (https://doi.org/10.7840/kics.2018.43.11.1813)