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Chapter 1 Wireless Communications (3.1 Advantages (Mobility Support,…
Chapter 1
Wireless Communications
Technologies
Definition
Examples
Bluetooth
WLAN
Cellular Networks
Satellite Networks
Applications
Health
Home Control
Travel
3.1 Advantages
Mobility Support
Easier and less expensive installation
Maintenance
Radio Signal Interference
3.2 Disadvantages
Security
Health Risks
Wireless Signals
Infrared (IR)
System Types
Directed
Diffuse
Components
Detector
Emitter
Disadvantages
Lack of mobility
low transmission speed
Limited transmission
coverage range
Advantages
Security
No interference with RF
Radio Frequency (RF)
Advantages
are invisible
travel long distance
penetrate most solid objects
Questions
Wireless Network Types
(Transmission Coverage)
WPAN
Bluetooth
RFID
IEEE 802.15.4
NFC
ZigBee
IEEE 802.15.1
WHDI
WiGig
WirelessHD
WLAN
IEEE 802.11b (WiFi)
IEEE 802.11a
IEEE 802.11n
IEEE 802.11g
IEEE 802.11ac
IEEE 802.ad
WMAN
IEEE 802.16 (WiMax)
FSO
LMDS
MMDS
WWAN
Satellite Networks
Cellular Networks
1G
2G
2.5G
3G
4G
5G