Downlink Performance of Coordinated Multipoint (CoMP) in Next Generation Heterogeneous Networks

Sultan, Jamil and Jabbar, Waheb A. and Al-Thobhani, Nashwan S. and Al-Hetar, Abdulaziz (2023) Downlink Performance of Coordinated Multipoint (CoMP) in Next Generation Heterogeneous Networks. In: 2023 3rd International Conference on Emerging Smart Technologies and Applications (eSmarTA), 10th - 11th October 2023, Taiz, Yemen.

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Next generation networks are envisaged to be heterogeneous networks (RetNets), primarily through the dense deployment of small cells in the coverage area of macro cells. RetNet leads to new cell edges with high-level inter-cell interferences (ICIs) that can be increased twice compared to the conventional cellular network design. Consequently, mitigating ICI plays a vital role in the next generation networks. Coordinated multipoint (CoMP) is an advanced communication technique that is able to mitigate the strongest ICI signals and turn them into useful signals. In CoMP, multiple macro and/or small transmission points (TPs) are involved in the transmission to cell edge users leading to further enhance performance of these users. In this paper, we investigate the downlink (DL) performance of 5G HetNet when CoMP technique is used for ICI mitigation. A system-level simulation is developed in order to evaluate and compare the DL performance of joint transmission (JT) CoMP scheme, dynamic point selection (DPS) CoMP scheme and Non- CoMP scheme. The effect of CoMP margin on the performance of CoMP technique is also investigated. Simulation results show that JT scheme outperforms DPS and Non-CoMP schemes in terms of the average DL signal-to-interference-plus-noise ratio (SINR), average DL spectral efficiency and outage probability. In addition, the percentage of users who use CoMP increases as CoMP margin is increased. Simulation results also show that the percentage of users whose CoMP TPs consists of one macro TP and one small TP is the highest and this percentage increases as CoMP margin is increased.

Item Type: Conference or Workshop Item (Paper)
Identification Number:
1 October 2023Accepted
31 October 2023Published Online
Uncontrolled Keywords: Coordinated Multipoint (CoMP), Joint Transmission (JT), 5G, Relay Node (RN), HetNets, Interference mitigation
Subjects: CAH10 - engineering and technology > CAH10-01 - engineering > CAH10-01-01 - engineering (non-specific)
Divisions: Faculty of Computing, Engineering and the Built Environment > College of Engineering
Depositing User: Gemma Tonks
Date Deposited: 11 Mar 2024 17:36
Last Modified: 20 Jun 2024 11:50

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