In wireless communication, the base station is connected to the central Hub called

The Correct answer is MSC:

Key Points

• Wireless communication
  • ​It is a broad term that incorporates all procedures and forms of connecting and communicating between two or more devices using a wireless signal through wireless communication technologies and devices
  • To provide wireless communication within a particular geographic region, an integrated network of base stations must be deployed to provide sufficient radio coverage to all mobile users. The base station, in turn, must be connected to a central hub called MSC (mobile switching center).

Additional Information

• PSTN:
  • ​PSTN stands for the public switched telephone network.
  • The PSTN forms the global telecommunication grid which connects conventional telephone centers with MSCs throughout the world.
• PBX:
  • Private Branch eXchange, a hardware system that handles routing and switching of calls between a business location and the telephone network
•  PABX:
  • ​Private automated branch exchange is synonymous with modern-day business telephone systems. It connects external and internal callers to an internal network via a switchboard without the need for manual operation in the middle, unlike its ancestor PMBX.
• The history of wireless communication is discussed below:
  • The first telegraph was invented (1600 – 1833)
  • The invention of the radio from the telegraph (1867-1896)
  • The birth of radio (1897 – 1898)
  • Transoceanic Communication (1901 –1909)
  • Voice over Radio and the First Television Transmissions (1914 – 1940)
  • Commercial Television and the Birth of Mobile Telephony (1946 – 1976)
  • Cellular Mobile Telephony and Steps toward Wireless Internet (1979 – 1994)
  • The Wireless Data Era (1997 – 2009)
  • PCS (1995-2008)