The Impact of Heterogenous Ultra-dense Network Technologies on the Performance of 4G and 5GNetworks
Abdullah Mohammed Abdullah Al-Amodi1, Amlan Datta2

1Abdullah Mohammed Abdullah Al – Amodi, Ph.D. Degree in School of Electronic Engineering of KIIT Deemed to be University, India.
2Dr. Amlan Dattaisa, Professor and Associate Dean, School of Electronics Engineering, KIIT, Deemed to be University. India.

Manuscript received on September 11, 2020. | Revised Manuscript received on November 01, 2020. | Manuscript published on November 10, 2021. | PP: 35-44 | Volume-10 Issue-1, November 2020 | Retrieval Number: 100.1/ijitee.A80701110120| DOI: 10.35940/ijitee.A8070.1110120
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)

Abstract: The flood of applications that demand massive data has imposed a challenge for 5G cellular network in order to deliver high data rates, a better quality of service, and low energy consumption. Heterogenous ultra- dense networks are one of the major technologies to address such challenges. HUDNs play a big role in a cellular system. They deliver cost-effective coverage with low transmit power and high capacty to face the risen data and the high expectations of the user’s performance. In this paper, we introduce the impact of small cells on the cellular system and the technologies the small cells utilize to make the cellular system faces the subscriber’s demands. First, we discuss the fundamentals of used technologies in small cells. Next, we studied the small cell management. Then, self-organizing networks are studied. After that, we have reviewed the small cell’s power consumption, mobility, and handover. Finally, the real-world experience of mm-waves and MIMO in 5G small cells. 
Keywords: 4G,5G, Small cells, Mm-wave, SON, MIMO.