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Mis chapter 6


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Mis chapter 6

  1. 1. MIS Group2Slide 15-22
  2. 2. Content Short-RangeWireless Option Medium-Range Wireless Option Wide Area Wireless Network Types Wide Area Wireless Network Options
  3. 3. Short-Range Wireless Options Near field communication (NFC) • Short–Range wireless connectivity technology designed for cell phones and credit cards.
  4. 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. 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. 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. 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. 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. 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. 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. 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. 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.