3. Short-Range Wireless Options
Near field communication (NFC)
• Short–Range wireless connectivity
technology designed for cell phones and
credit cards.
4. Short-Range Wireless Options
(Con)
Bluetooth
• Bluetooth is a wireless communications
specification that describes how cell
phones, computers, personal digital
assistants, printers, and other electronic
devices can be interconnected over
distances of 10–30 feet at a rate of about 2
Mbps.
5. Short-Range Wireless Options
(Con)
Ultra wideband UWB
• Ultra wideband (UWB) is a wireless
communications technology that transmits
large amounts of digital data over short
distances of up to 30 feet and very low
power. Ultra wideband has the potential to
replace Bluetooth’s 2 Mbps transmission
speed with 400 Mbps rates for wirelessly
connecting printers and other devices to
desktop computers or enabling completely
wireless home multimedia networks.
6. Short-Range Wireless Options
(Con)
Infrared transmission
• Infrared transmission sends signals at a
frequency of 300 GHz and above. Infrared
transmission.
• requires line-of-sight transmission and short
distances—such as a few yards.
7. Short-Range Wireless Options
(Con)
Zigbee
• Zigbee is a form of wireless communications
frequently used in security systems and
heating and cooling control systems.
Zigbee is a relatively low-cost technology
and requires little power, which allows
longer life with smaller batteries.
8. Medium-Range Wireless
Options
Wi-Fi:
• is a popular technology that allows an
electronic device to exchange
data wirelessly, including high-speed
Internet connections. The Wi-Fi
Alliance defines Wi-Fi as any "wireless local
area network (WLAN) products based on
the IEEE 802.11
9. Medium-Range Wireless
Options (Con)
Wireless Access Point:
• a wireless access point (WAP) is a device
that allows wireless devices to connect to a
wired network using Wi-Fi
• Have maximum range of about 300 feet
outdoors and 100 feet within a dry-walled
building
10. Wide Area Wireless Network
Types
Microwave Transmission:
• High-frequency (300 MHz – 300 GHz) signal
sent through the air
• Line of Sight Path About 30 miles
11. Wide Area Wireless Network
Options
3G Wireless communications:
• 3rd generation of mobile
telecommunications technology standard.
• Support Wireless voice and broadband
speed data communications in a mobile
environment.
• Recent 3G releases, often
denoted 3.5G and 3.75G
12. Wide Area Wireless Network
Options (Con)
4G Wireless communications:
• Will provide increased data transmission rates in
the 20-40 Mbps range
WorldwideInteroperability for Microwave
Access (WiMAX):
• Set of IEEE 802.16
• operates like Wi-Fi, only over greater
distances and at faster transmission speeds.
• WiMAX can support data communications
at a rate of 70 Mbps.
