Performance Analysis of Dual-Band Millimetre Wave at 28 GHz and 73 GHz in 5G Heterogeneous Networks

The International Telecommunication Union (ITU) has selected millimeter-wave (mmWave) frequencies of 28 GHz, 38 GHz, and 73 GHz as suitable for fifth generation (5G) wireless communication. While earlier research has looked at both frequencies independently for prospective 5G systems, there is a gap in knowledge about the performance of dual-band mmWave systems operating at 28 GHz and 73 GHz. As a result, this article offers a thorough system model and performance analysis for dual-band mmWave use in 5G heterogeneous networks (HetNets). Our paper focuses on assessing the performance of dual-band mmWave HetNets in which mmWave small cells coexist with macro cells. We examined the effectiveness of leveraging the 28 GHz and 73 GHz mmWave bands in conjunction with the 3.8 GHz microwave frequency to improve the capabilities of 5G HetNets using simulations. The strategy used for resource allocation comprises the equal distribution of power and resources. The findings show that the proposed dual-band mmWave network at 28 GHz and 73 GHz model performs similarly to the single-band mmWave at 28 GHz in terms of throughput. In conclusion, this paper highlights the preliminary analysis of dual-band mmWave integration in improving the overall throughput of 5G heterogeneous networks.