5g wireless cellular communications systems - the 5th generation

Generations in wireless cellular systems -

  1. 1G - Analog systems like the Advanced Mobile Phone System in the US
  2. 2G - First digital systems like Global System for Mobile telecommunications (GSM)
  3. 3G - wideband CDMA systems with increasing support for data communications
  4. 4G / LTE - data-first (voice even goes over IP, rather than traditional circuit-switched voice), with OFDMA for resource management over the air - mobile broadband services are well supported
  5. 5G - builds on LTE to add support for Ultra-Reliable Low Latency Communications (URLLC), IoT (internet of things), V2X (vehicular comms), etc., in addition to mobile broadband services; network functions virtualization, etc., in the core network