A Proposed Analytical Inter-Cell Interference Model for Mobile Cellular Systems with Isotropic Antenna
1, a Raz Shara Abdalqadir 2, a Araz Sabir Ameen
a University of Sulaimani, College of Engineering, Electrical Engineering Department
4G and beyond cellular systems intend to use a frequency reuse factor of one with three sectors per BS site. This configuration leads to an increase in inter-cell interference (ICI). Thus, ICI modeling is very necessary to design and analyze any cellular system. The impact of ICI is modeled analytically in this paper. The effect of six interfering BS sites surrounding the serving BS is examined. The ICI is first mathematically modeled as a function of BS-UE distance for several environments based on pathloss exponent and then validated using an explicit simulation model. Secondly, the results obtained from the proposed model and the explicit simulation model are compared. The comparisons showed good agreement between the results of the proposed model and the simulation model. The mathematical model is convenient to the standardized ITU-R model and has the flexibility to apply any antenna patterns that is compatible with these international models. Furthermore, this model enables ICI estimation by deploying the serving BS cell only without the need to deploy the surrounding nine interfering cell. This has positive impact on reducing the time required for system level simulation.
Cellular systems; inter-cell interference; interference modeling.
 D. Xu, W. Yin, Q. Zhang and P. Zhao, "Interference mitigation and receiving performance improvement strategies for local cooperation in the 5G system," IET Communications, pp. 1696-1703, 2020.
 C. Kosta, B. Hunt, A. U. Quddus and R. Tafazolli, "On Interference Avoidance through Inter-Cell Interference Coordination (ICIC) based on OFDMA mobile systems," IEEE Communications Surveys & Tutorials, vol. 15, no. 3, pp. 973-995, 2012.
 X. Wang, H. Zhang, Y. Tian, C. Zhu and V. C. M. Leung, "Optimal Distributed Interference Mitigation for Small Cell Networks With Non-Orthogonal Multiple Access: A Locally Cooperative Game," IEEE Access, vol. 6, pp. 63107-63119, 2018.
 W. Mennerich, M. Grieger, W. Zirwas and G. Fettweis, "Interference Mitigation Framework for Cellular Mobile Radio Networks," International Journal of Antennas and Propagation, vol. 2013, pp. 1-15, 2013.
 A. S. Ameen, D. Berraki, A. Doufexi and A. R. Nix, "LTE-Advanced network inter-cell interference analysis and mitigation using 3D analogue beamforming," IET Communications, vol. 12, no. 13, pp. 1563-1572, 2018.
 A. S. Ameen, A. Doufexi and A. R. Nix, "Proposed ITU-R Compatible Inter-Site and Inter-Sector Interference Models for LTE-Advanced Networks," IEEE Transactions on Vehicular Technology, vol. 69, no. 12, pp. 14304-14315, 2020.
 A. S. Hamza, S. S. Khalifa, H. S. Hamza and K. Elsayed, "A Survey on Inter-Cell Interference Coordination Techniques in OFDMA-Based Cellular Networks," IEEE Communications Surveys & Tutorials, vol. 15, no. 4, pp. 1642-1670, 2013.
 N. Forouzan and S. A. Ghorashi, "Inter-cell interference coordination in downlink orthogonal frequency division multiple access systems using Hungarian method," IET Communications, vol. 7, no. 1, pp. 23-31, 2013.
 J. Huang, J. Li, Z. Chen and H. Pan, "HICIC: Hybrid Inter-Cell Interference Coordination for Two-Tier Heterogeneous Networks With Non-Uniform Topologies," IEEE Access, vol. 6, pp. 34707-34723, 2018.
 M. Olyaee, M. Eslami, J. Haghighat and W. Hamouda, "Performance Analysis of Cellular Downlink With Fluctuating Two-Ray Channels Under Inter-Cell Interference," IEEE Transactions on Vehicular Technology, vol. 69, no. 11, pp. 13437-13449, 2020.
 H. S. Dhillon, R. K. Ganti, F. Baccelli and J. G. Andrews, "Modeling and Analysis of K-Tier Downlink Heterogeneous Cellular Networks," IEEE Journal on Selected Areas in Communications, vol. 30, no. 3, pp. 550-560, 2012.
 H. Tabassum, F. Yilmaz, Z. Dawy and M. S. Alouini, "On the Modeling of Uplink Inter-Cell Interference based on Proportional Fair Scheduling," 2012 IEEE Wireless Communications and Networking Conference Workshops (WCNCW), pp. 317-321, April 2012.
 C. Seol and K. Cheun, "A Statistical Inter-Cell Interference Model for Downlink Cellular OFDMA Networks Under Log-Normal Shadowing and Multipath Rayleigh Fading," IEEE Transactions on Communications, vol. 57, no. 10, pp. 3069-3077, 2009.
 M. Sagong and K. Cheun, "A Statistical Inter-Cell Interference Model for Uplink Cellular OFDMA Networks Under Log-Normal Shadowing and Rayleigh Fading," IEEE Communications Letters, vol. 16, no. 6, pp. 824-827, 2012.
 C. Seol, K. Cheun and S. Hong, "A Statistical Inter-Cell Interference Model for Downlink Cellular OFDMA Networks Under Log-Normal Shadowing with Ricean Fading," IEEE Communications Letters, vol. 14, no. 11, pp. 1011-1013, 2010.
 Y. Cho, H. Kim, D. K. Tettey, K.-J. Lee and H.-S. Jo, "Modeling Method for Interference Analysis Between IMT-2020 and Satellite in the mmWave Band," in 2019 IEEE Globecom Workshops (GC Wkshps), 2019.
 B. Lahad, M. Ibrahim, S. Lahoud, K. Khawam and S. Martin, "A Statistical Model for Uplink/Downlink Intercell Interference and Cell Capacity in TDD HetNets," in 2018 IEEE International Conference on Communications (ICC), 2018.
 H. Tabassum, F. Yilmaz, Z. Dawy and M. S. Alouini, "A Statistical Model for Uplink Intercell Interference with Power Adaptation and Greedy Scheduling," in 2012 IEEE Vehicular Technology Conference (VTC Fall), 2012.
 O. Osterbo and O. Grondalen, "Comparison of inter-cell interference Models for Cellular Networks," in 2014 European Conference on Networks and Communications (EuCNC), 2014.
 F. Z. Kaddour, B. Denis and D. Ktenas, "Downlink Interference Analytical Predictions under Shadowing within Irregular Multi-Cell Deployments," in 2015 IEEE International Conference on Communications (ICC), 2015.
 B. Pijcke, M. Zwingelstein-Colin, M. Gazalet and F.-X. Coudoux, "On modeling the downlink inter-cell interference power in wireless cellular networks," in 2010 European Wireless Conference (EW) , 2010.
 M. Ahmadi, M. Ni and J. Pan, "A Geometrical Probability-based Approach towards the Analysis of Uplink Inter-Cell Interference," in 2013 IEEE Global Communications Conference (GLOBECOM), 2013.
 H. Tabassum, F. Yilmaz, Z. Dawy and M.-S. Alouini, "A Statistical Model of Uplink Inter-Cell Interference with Slow and Fast Power Control Mechanisms," IEEE Transactions on Communications, vol. 61, no. 9, pp. 3953-3966, 2013.
 M. Mirahmadi, A. Al-Dweik and A. Shami, "Interference Modeling and Performance Evaluation of Heterogeneous Cellular Networks," IEEE Transactions on Communications, vol. 62, no. 6, pp. 2132-2144, 2014.
 F. J. Martin-Vega, G. Gomez, M. C. Aguayo-Torres and M. D. Renzo, "Analytical Modeling of Interference Aware Power Control for the Uplink of Heterogeneous Cellular Networks," IEEE Transactions on Wireless Communications, vol. 15, no. 10, pp. 6742-6757, 2016.
 R. Almesaeed, A. S. Ameen, A. Doufexi and A. R. Nix, "Exploiting the Elevation Dimension of MIMO System For Boosting Handset Capacity," in 2015 IEEE International Conference On Communication Workshop (ICCW), 2015.
 A. R. Nix, "Mobile Communication Lecture Notes," UK, 2011.
 J. Hass, C. Heil and M. D. Weir, Thomas' calculus / based on the original work by George B. Thomas, 14th Edition ed., Boston: Pearson, 2018.
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