Analysis of DUDe in Heterogeneous Network Based on Small Cell Density 


Vol. 44,  No. 6, pp. 1232-1238, Jun.  2019
10.7840/kics.2019.44.6.1232


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  Abstract

The DL/UL decoupling (DUDe) is an attractive technology to increase the capacity of the uplink in a heterogeneous network. In the conventional cellular network, cell connection is performed based on the downlink reference signal power in both uplink and downlink However, it may be more advantageous to connect the uplink to the base station with less path loss. In this paper, we analyze the number of uplink and downlink connections by increasing a number of small cell base stations in heterogeneous network that DUDe algorithm is applied. As the number of small cells increases, the area where the uplink coverage overlaps and the area that can be connected to the DUDe is gradually reduced, so that the number of UEs in which the uplink and the downlink are separated is reduced. SINR coverage and uplink capacity have similar performance in a network in which a UE connected to a DUD has the smallest cell density and a cell in which a small cell is disposed. As a result of checking energy efficiency, the UE has the highest energy efficiency at the small cell density with the largest number of UEs connected downlink. That is, if the small cell is adjusted to the proper density for the DUDe connection, the performance of the uplink is similar to the result of the addition of the small cell even without the additional enlargement of the small cell, which is advantageous in terms of energy efficiency and cost.

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  Cite this article

[IEEE Style]

J. Han, T. Park, E. Hong, "Analysis of DUDe in Heterogeneous Network Based on Small Cell Density," The Journal of Korean Institute of Communications and Information Sciences, vol. 44, no. 6, pp. 1232-1238, 2019. DOI: 10.7840/kics.2019.44.6.1232.

[ACM Style]

Jong-Won Han, Tae-Yoon Park, and Een-Kee Hong. 2019. Analysis of DUDe in Heterogeneous Network Based on Small Cell Density. The Journal of Korean Institute of Communications and Information Sciences, 44, 6, (2019), 1232-1238. DOI: 10.7840/kics.2019.44.6.1232.

[KICS Style]

Jong-Won Han, Tae-Yoon Park, Een-Kee Hong, "Analysis of DUDe in Heterogeneous Network Based on Small Cell Density," The Journal of Korean Institute of Communications and Information Sciences, vol. 44, no. 6, pp. 1232-1238, 6. 2019. (https://doi.org/10.7840/kics.2019.44.6.1232)

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pISSN : 1226 - 4717
eISSN : 2287 - 3880