  The evolution of cellular networks has played a pivotal role in shaping the
modern telecommunications landscape. This paper explores the journey of
cellular network generations, beginning with the introduction of Japan's first
commercial 1G network by Nippon Telegraph and Telephone (NTT) Corporation in
1979. This analog wireless network quickly expanded to become the country's
first national 1G network within a remarkably short period.
  The transition from analog to digital networks marked a significant turning
point in the wireless industry, enabled by advancements in MOSFET
(Metal-Oxide-Semiconductor Field Effect Transistor) technology. MOSFET,
originally developed at Bell Labs in 1959, underwent modifications to suit
cellular networks in the early 1990s, facilitating the shift to digital
wireless mobile networks. The advent of the 2G generation brought forth the
first commercial digital cellular network in 1991, sparking recognition among
manufacturers and mobile network operators of the importance of robust networks
and efficient architecture. As the wireless industry continued to experience
exponential growth, the significance of effective network infrastructure became
increasingly evident.
  In this research, our aim is to provide a comprehensive overview of the
entire spectrum of cellular network generations, ranging from 1G to the
potential future of 7G. By tracing the evolution of these networks, we aim to
shed light on the transformative developments that have shaped the
telecommunications landscape and explore the possibilities that lie ahead in
the realm of cellular technology.
