As a consequence of tremendous traffic demands for modern networks and to fulfill these expectations, cellular systems are placed within a wireless Local Area Networks (WLAN) system. Bangladesh has entered very recently a new era of wireless connectivity with the launch of fifth-generation (5G) mobile internet connectivity by mobile phone operator Teletalk. According to the UN's Least Developed Countries (LDC) list, Bangladesh is a developing country with a large rural population and

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... s Internet connectivity rate is only 28.8%. This research paper represents the actual user data of existing 3rd & 4th generation networks in Bangladesh and the possible opportunities and challenges in Bangladesh for implementing the 5G model and next-generation networks based on those findings in Bangladesh. The primary goal of this research paper is to identify the maximum benefits of cellular communications, wireless optical technologies, integrated sensing and communication, and other technologies in Bangladesh that can support the proposed launched 5G architecture. Due to the lack of sufficient network connections in major rural areas in Bangladesh, the result data is from only a small network-covered area. This paper illustrates that the mean 4G network coverage of four major mobile operator companies is 52% only. For this experiment, the network coverages of all operators are measured in mobile phones in different areas in Bangladesh. This experimental result indicates that the existing connections need to be implied and developed for all areas in Bangladesh before implementing the 5G architecture.