Due to infrastructure and costs involved it would be more suited to provide the backbone services for ISPs and large corporations providing wireless networking and internet access. below 10 GHz using OFDM modulation technique (NLOS). WiMAX is similar to the wireless standard known as Wi-Fi, but on a much larger scale and at faster speeds. Currently, there are no WiMax-certified products yet available in the market, but the race is already on. BATTERY CARE The folded open stub and long and short L-shaped strips realize impedance matching at 2.4, 3.5, 5.2, and 5.8 GHz, and the asymmetric trapezoid ground plane fine-tune… Wi-Fi currently provides the fixed version, the mobile version being in development. WiMAX’s channel sizes range from 1.5 to 20MHz as well, and offer a WiMAX-based network the flexibility to support a variety of data transmitting rates such as T1 (1.5Mbps) and higher data transmitting rates of up to 70Mbps on a single channel that can support thousands of users. Frequency (GHz) Standard Launch date Notes Beltelecom (ByFly) Belarus: 3,5 IEEE 802.16e ? What is Internet of Things and Why is it Important? How to Connect Automatic UPS / Inverter to the Home Supply System? New Peruvian WiMAX operator launches in Lima", "WiMAX and Fixed Wireless Deployment Fact Sheet", "Comstar launches Armenian WiMAX network", "BigAir launches the first commercial fixed WiMAX services in Sydney and Melbourne", "Pakistan, Bangladesh WiMAX firm Augere sells stake to equity house", "Qubee shuts down WiMAX services for residential users; LTE launch set for December", "BanglaLion latest to launch WiMAX in Dhaka", "Go team! For line of sight connectivity, with the help of strong antennas, coverage area of up to 9300 square kilometers (sq-kms) is possible. Right now, the WiMAX Forum has more than 110 members of equipment, semiconductor suppliers, and services providers such as Alcatel, AT&T, Fujitsu, Intel, Nortel, Motorola, SBC and Siemens, and so forth. Currently, there are cable and DSL broadband access services in the marketplace. There is the non-line-of-sight, WiFi sort of service, where a small antenna on your computer connects to the tower.In this mode, WiMAX uses a lower frequency range-- 2 GHz to 11 GHz (similar to WiFi).Lower-wavelength transmissions are not as easily disrupted by physical obstructions -- they are better able to diffract, or bend, around obstacles. As bluetooth devices automatically communicate with each other, it requires very little from the user. Wi-Fi works at 2.7 bps/Hz and can peak up to 54 Mbps in 20 MHz channel. *Signal Interference: Compared with 2.4GHz and 5GHz,  900MHz is susceptible to both broadcast as well as tall physical objects on a long range. On the other hand, WiMAX provides both fixed and mobile versions. WiMAX operates on two frequency bands, 2 - 11GHz and 10 - 66GHz and has a range of about 50km with speeds of upto 80Mbps. Wi-Fi does not provide ubiquitous broadband while WiMAX does. Drawing on hundreds of experts in the telecommunications industry, the IEEE has established a collection of wireless standards that include IEEE 802.15, also known as Bluetooth, for the Personal Area Network (PAN); IEEE 802.11, also known as WiFi, for the Local Area Network (LAN); 802.16 for the Metropolitan Area Network (MAN), and IEEE 802.20 for the Wide Area Network (WAN). While WiMAX is the latest step in the area network scale, the final step would be the Global Area Network (GAN) (Proposed Standard – IEEE 802.20). Aslo Read: What are Industrial Communication Networks? Also Read: What is ZigBee Technology and How it works? On the other hand, Wi-Fi is a short distance wireless means of connectivity up to 30 meters for indoor applications and up to 100 meters for outdoor coverage. Wi-Fi is intended for LAN applications, users scale from one to tens with one subscriber for each CPE device. The WiMAX-based wireless solution makes it possible for the service provider to scale-up or scale-down service levels in short times with the client request. in Saudi Arabia : the band 3.4-3.6 GHz is used for 802.16 d and i think there is a band around 2.5 GHz was assigned for 802.16 e best regards, By ensuring Quality of Service and Multicasting services, WiMAX can provide Voice over Internet Protocol (VoIP) and Internet Protocol Television (IPTV) apart from fast broadband connections. Wi-Fi can transmit data at the fastest, up to 54 Megabits per second, whereas speed for WiMAX can reach up to 70 Megabits per second. Operating principl… WiMAX is based upon IEEE Std 802.16e-2005, approved in December 2005. The 802.16d standard of extending 802.16 supports three physical layers (PHYs). In addition, WiMAX provides an ideal wireless backhaul technology to connect 802.11 wireless LANs and commercial hotspots with the Internet. It is a supplement to the IEEE Std 802.16-2004, and so the actual standard is 802.16-2004 as amended by 802.16e-2005. Almost all commercial Wireless DMX systems operate in the 2.4GHz band, so it is the most widely used  frequency  worldwide in some case may be crowded. Higher frequency transmissions are used for non-line-of-sight service. WiMAX supports full duplex communication with 256 FFT OFDM (Orthogonal Frequency Division Modulation) along with single carrier and 2048 FFTOFDM technology. IEEE 802.11 standard (Wireless Local Area Network (LAN) working group) is used to provide Wireless Local Area Network (WLAN) standards for short distance. WiMAX. Unlike WiFi, WiMAX’s range is typically measured in miles rather than feet. It does not require line of sight and can efficiently bandwidth intensive applications like real time video. It will allow users to connect to a wireless Internet service provider even when they roam outside their home or business office. WiMAX networks have flexible channel bandwidth range from 1.25 MHz to 20 MHz, whereas Wi-Fi networks have fixed channel bandwidth of 20 MHz.

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