Capacity Limitation of Small Cell Densification

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

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Deployment of small cells is considered as an easy approach for adding capacity to the system. However, it is important to realize that in a non-noise limited system, each additional cell increases the interference in the system. The target of this paper is to show the capacity limitation of the cellular network with an increasing number of small cells in a network. Ultra-dense deployment of small cells implies a high probability of line of sight (LOS) transmission between the transmitter (TX) and receiver (RX). The LOS transmission helps in enhancing the received signal strength, whereas, on the other hand, the interference power significantly grows with small cell densification. This paper presents the analytical analysis of bad cell border area for one-, and two-dimensional grid of small cells. The lamp post solution for the small cell deployment along the street is studied through simulations. The acquired results show that the overall interference in the system and the bad signal to interference plus noise ratio (SINR) cell border area grows with cell densification. System capacity saturates and then starts to collapse as the capacity loss due to the additional cell interference becomes dominant over the gain of cell densification after the saturation point.

Original languageEnglish
Title of host publication36th International Conference on Information Networking, ICOIN 2022
Number of pages5
ISBN (Electronic)978-1-6654-1332-9
ISBN (Print)978-1-6654-1333-6
Publication statusPublished - 2022
MoE publication typeA4 Conference publication
EventInternational Conference on Information Networking - Virtual, Jeju Island, Korea, Republic of
Duration: 12 Jan 202215 Jan 2022

Publication series

NameInternational Conference on Information Networking
ISSN (Print)1976-7684


ConferenceInternational Conference on Information Networking
Abbreviated titleICOIN
Country/TerritoryKorea, Republic of
CityVirtual, Jeju Island


  • capacity
  • cell border area
  • cell densification
  • Small cell
  • ultra dense network


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