Wi MAX Vs WiFi Wi MAX Worldwide Interoperability

Wi. MAX Vs Wi-Fi

Wi. MAX Worldwide Interoperability for Microwave Access Brand licensed by the Wi. Max Forum. “a standards-based technology enabling the delivery of last mile wireless broadband access as an alternative to cable and DSL” Wi. MAX was seen as more of a Metropolitan Area Network (MAN) technology providing a much larger coverage. Based on IEEE 802. 16 2

Wi. MAX, in fact, comes in two forms, a so called ‘fixed Wi. MAX’ and a ‘mobile Wi. MAX’. Wi. MAX in its fixed form is seen as a possible alternative to expensive cable and fibre deployment. It is faster to deploy and less expensive and it also offers operators more flexibility in terms of deployment time frame and possible installation areas. 3 G or other cellular network operators could see this as a potential substitute or as a complement to their cellular product. 3

Wi. MAX Architecture MIB – Management Information Base 4

Wi-Fi Stands for Wireless Fidelity. Brand licensed by the Wi-Fi Alliance. Wi-Fi is a local area network technology that was originally thought to replace thousands of miles of LAN cables. Wireless Local Area Networks (WLAN) Based on IEEE 802. 11 5

Wi-Fi has grown from being just a LAN cable replacement technology to a public wireless access technology. Cheap and readily available equipment. Wi. Fi has been viewed as complementary to 3 G and other mobile standards as it has worked to enhance mobile services offered by operators. It’s coverage is not as great as that of 3 G, but it gives a much higher transmission rate than mobile technology. Handoff between Wi. Fi access points is still not possible and, therefore, it is known more as a wireless access technology than a mobile technology. 6

Wi-Fi New developments are taking place within the 802. 11 standardization group With the increasing popularity of Vo. IP, many see Wi. Fi as one of the possible means of using Vo. IP with some form of mobility 802. 11 r for wireless Vo. IP and other real time applications 802. 11 s for meshed Wi. Fi networking Making Wi. Fi more mobile could make it more of a substitute to mobile technologies 7

Wireless Systems 8

802. 11 Protocol Stack 9

802. 16 protocol stack 10

Scalability 11

Bit Rate: Relative Performance Channel Bandwidth Maximum Data Rate Maximum bps/Hz 802. 11 a 20 MHz 54 Mbps ~2. 7 bps/Hz 802. 16 a 10, 20 MHz; 1. 75, 3. 5, 7, 14 MHz; 3, 6 MHz 63 Mbps* ~5. 0 bps/Hz * Assuming a 14 MHz channel 802. 16 a is designed for metropolitan performance 12

Coverage 802. 16 is designed for market coverage 13

Range 802. 16 is designed for distance 14

Quality of Service (Qo. S) 802. 16 a is designed for carrier class operation 15

Security 802. 16 a maintains fixed wireless security 16

Wi. MAX vs Wi-Fi 17

Wi. MAX vs Wi-Fi 18

Comparison of Wi. MAX, Wi. Fi and 3 G technology 19

802. 11 vs 802. 16: Summary 802. 11 and 802. 16 both gain broader industry acceptance through conformance and interoperability by multiple vendors 802. 16 complements 802. 11 by creating a complete MAN-LAN solution 802. 11 is optimized for license-exempt LAN operation 802. 16 is optimized for license-exempt and licensed MAN operation. 20

Will Wi. MAX displace Wi. Fi? Wi. MAX will not replace Wi. Fi completely, but work TOGETHER Intel is currently integrating Wi. MAX and Wi. Fi into a single Centrino chip. Wi. Fi’s primary role will always be autonomous hotspot service areas (indoor and outdoor 0 ft. < cell radii <500 ft. ). Wi. Max will ultimately replace Wi. Fi in largescale (greater than 21

Wi-fi and Wi. Max Together 22