Interference Management for Different 5G Cellular Network Constructions
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Interference Management for Different 5G Cellular Network Constructions Eman M. Soultan1 · Hala B. Nafea1 · Fayez W. Zaki1 Accepted: 8 September 2020 © Springer Science+Business Media, LLC, part of Springer Nature 2020
Abstract Due to the technology growth in the fifth Generation (5G) in the modern era, there is an urgent need for Ultra-Reliable Communications (URC). It is considered one of the novel features for 5G. The most obvious limitation that faces the URC is the interference which is severe at the cell edges. Hence, the use of the Interference Management (IM) techniques such as Fractional Frequency Reuse (FFR) and Soft Frequency Reuse (SFR) is most important to overcome the interference and make good use of URC. The previous studies focused on the analysis of FFR and SFR for either the regular (hexagonal) cellular network only or irregular (voronoi) cellular network. This paper introduces the FFR and SFR analysis for hybrid cellular network which is defined as a mixture that combines both of the regular and irregular cellular networks. So, in this paper, the FFR and SFR performance analysis would be carried out and compared for each of the regular, irregular and hybrid cellular networks in both downlink and uplink scenarios. Keywords Interference · Interference Management (IM) · Fractional Frequency Reuse (FFR) · Soft Frequency Reuse (SFR) · Regular, irregular and hybrid construction schemes · Downlink · Uplink
1 Introduction The authors in [1–3], showed that the performance of the 5G would be better than that of 4G from three perspectives which include Ultra-Reliable Communications (URC), Massive Machine Type Communications (MMTC) and enhanced broadband. URC has a vital role in 5G. The URC has applications as reliable wireless coordination among vehicles and industrial automation [4]. * Eman M. Soultan [email protected] Hala B. Nafea [email protected] Fayez W. Zaki [email protected] 1
Department of Electronics and Communications Engineering, Faculty of Engineering, Mansoura University, Mansoura, Egypt
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The mitigation of the interference is considered the major challenge that faces URC in 5G, especially at the cell edges. Hence, it was highly recommended to use Interference management techniques like FFR and SFR to overcome the interference. However, the authors of the previous studies [5–8] focused on studying the performance analysis of FFR and SFR for either the regular or the irregular models in cellular downlink or uplink. Whereas, this paper focuses on comparing the FFR and SFR analysis for both of the regular and irregular cellular network models. In [1], a new proposed model that combines both of the regular and irregular models was introduced. This model is defined as the hybrid model and is considered the most realistic model. The availability in the space domain for the three cellular network models was also presented. Moreover, in this paper, the FFR and SFR analysis has been studied for the regular, irregular and hybrid mode
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