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Describe wireless generation evolution - Coggle Diagram
Describe wireless generation evolution
1G
system during 1980 to 1990
Key features (technology) of 1G system
Frequency 800 MHz and 900 MHz
Bandwidth: 10 MHz (666 duplex channels with bandwidth of 30 KHz)
Modulation: Frequency Modulation (FM)
Mode of service: voice only
Disadvantages of 1G system
Poor voice quality due to interference
Poor battery life
Large sized mobile phones (not convenient to carry)
3G
system during 2000 to 2010
Key features of 3G system
Video calling
Location tracking and maps
TV streaming
High quality 3D games
Disadvantages of 3G systems
Expensive spectrum licenses
Costly infrastructure, equipment and implementation
Higher bandwidth requirements to support higher data rate
2G
system during 1990 to 2000
Key features of 2G system
Digital system (switching)
SMS services is possible
Roaming is possible
Disadvantages of 2G system
Low data rate
Limited mobility
Less features on mobile devices
Limited number of users and hardware capability
4G
system during 2010 to 2020
Key features of 4G system
Much higher data rate up to 1Gbps
High definition video streaming and gaming
Enhanced security and mobility
Disadvantages of 4G system
Expensive hardware and infrastructure
Costly spectrum (most countries, frequency bands are too expensive)
High end mobile devices compatible with 4G technology required, which is costly
5G
system during From 2020-
Key features of 5G technology
Ultra fast mobile internet up to 10Gbps
Low latency in milliseconds (significant for mission critical applications)
Total cost deduction for data
