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Research Paper | Information Technology | Volume 15 Issue 4, April 2026 | Pages: 1123 - 1127 | United States
Strategies for 4G/5G Coexistence in High-Density Urban Clusters (India)
Abstract: This article presents a systematic analysis of strategies for the coexistence of fourth- and fifth-generation networks in high-density urban clusters, where a high concentration of subscribers, devices, and services under limited radio-frequency resources leads to interference-limited network operation. The study is conducted as an analytical synthesis of peer-reviewed scientific publications and focuses on comparing spectral, architectural, mobility-related, and infrastructure-level coexistence mechanisms without quantitative aggregation of results due to methodological heterogeneity of the sources. Particular attention is paid to the role of the FR1 band as the primary zone of overlap between LTE and 5G in non-standalone architectures, as well as to the impact of full frequency reuse on the nature of interference interactions in dense urban environments. It is shown that the dominant constraint on capacity scaling in such scenarios is interference rather than nominal spectrum scarcity, which shifts the emphasis from static planning to dynamic radio resource allocation and intelligent control mechanisms. It is established that the highest robustness is demonstrated by architectures in which dynamic spectrum sharing and algorithmic decision-support mechanisms are integrated with non-standalone deployment schemes, mobility management loops, and infrastructure-sharing mechanisms. The analysis shows that the effectiveness of 4G/5G coexistence is determined not by the isolated application of individual technologies, but by the degree of their coordination within a managed operational control loop. The article will be of interest to mobile network researchers, radio network architects, cellular optimization engineers, and specialists involved in the planning and operation of urban communication networks.
Keywords: 4G, 5G, network coexistence, high-density urban environments, infrastructure sharing
How to Cite?: Pranay Raj Kanakala, "Strategies for 4G/5G Coexistence in High-Density Urban Clusters (India)", Volume 15 Issue 4, April 2026, International Journal of Science and Research (IJSR), Pages: 1123-1127, https://www.ijsr.net/getabstract.php?paperid=SR26413173902, DOI: https://dx.dx.doi.org/10.21275/SR26413173902