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6 - Interference Management in Ultra-dense Networks

from Part II - Physical Layer Design

Published online by Cambridge University Press:  12 October 2020

Haijun Zhang
Affiliation:
University of Science and Technology Beijing
Jemin Lee
Affiliation:
Daegu Gyeongbuk Institute of Science and Technology, Korea
Tony Q. S. Quek
Affiliation:
Singapore University of Technology and Design
Chih-Lin I
Affiliation:
China Mobile Research Institute
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Summary

Network densification has become a major contributor to expanding network capacity for the 5th generation and beyond wireless networks. Despite the potential benefits, however, the network over-densification would as well result in unhandlable interference, which is primarily due to the over-use of spectral resources. Therefore, whether the available interference management (IM) techniques are still capable of effectively handling the interference in ultra-dense networks (UDN) becomes doubtful. In this chapter, we first study the new features of the interference in UDN. Then, we make a brief overview of the IM techniques. Performance evaluation is further made, which indicates typical IM techniques fail to effectively mitigate interference in UDN. Considering the new features of the interference, we then discuss how to implement effectively interference management through designing an IM entity for UDN. With the aid of the IM entity, we tailor an effectively IM approach, which is capable of mitigating the severe interference and decorrelating the temporal interference correlation. Results show that the proposed could greatly enhancing network capacity in UDN.

Type
Chapter
Information
Ultra-dense Networks
Principles and Applications
, pp. 84 - 106
Publisher: Cambridge University Press
Print publication year: 2020

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