Wimax as A 4G

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Wimax with 4g


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Presented by:Ankush A. SURKAR. : 


What is WiMAX? : 

What is WiMAX? Worldwide Interoperability for Microwave Access (WiMAX) is the common name associated to the IEEE 802.16a/REVd/e standards. These standards are issued by the IEEE 802.16 subgroup that originally covered the Wireless Local Loop technologies with radio spectrum from 10 to 66 GHz.

IEEE 802.16 -- Introduction : 

IEEE 802.16 -- Introduction Coverage range up to 50km and speeds up to 70Mbps(shared among users)

How wimax works..? : 

How wimax works..?

Features of WiMAX Technology : 

Features of WiMAX Technology Wimax support multipath  Wimax broadband access Wimax offer high speed data rate Wimax offers high Security

Wi-Fi and WiMAX : 

Wi-Fi and WiMAX The basic difference between Wimax technology and Wifi technology are cost, speed, distance and so on. Wimax coverage is about 30 miles and Wifi coverage is very limited to some small area The Wimax architecture is design to make possible metropolitan area networking (MAN). The base station of Wimax capable to provide access to business and hundred of homes, While Wifi is providing only local area networking (LAN). Wimax offer high speed internet as a broadband access which transfer data, voice, video at very high speed. While WiFi offer short range of data transfer because WiFi can connect only in specified areas so only file sharing may possible.

Why WiMAX Technology : 

Why WiMAX Technology Wimax technology is expected to do more for Metropolitan Area Networks (MANs) and what Wi-Fi has done for local area networks (LANs)? Wimax is not projected to replace Wi-Fi, but to complement it by connecting Wi-Fi networks to each other or the Internet through high-speed wireless links. The frequency for operation of Wimax is not definite, the most likely band at 3.5GHz is higher in frequency than the 3G bands at around 2.1 GHz. Range will, as a result, be lower, perhaps somewhere between 50% and 75% of the range of 3G. Wimax can therefore support 30 to 50 kilometers distance with Line-of-Sight (LOS) links.


TECHNOLIOGY USED… The technology used for WiMax is Orthogonal Frequency Division Multiplexing (OFDM) OFDM is coupled with a high channel bandwidth, that allows greater data rates

Wimax Network Cost : 

Wimax Network Cost The network costs of Wimax will be likely to be higher than for 3G because of the reduced range and hence the necessity to build more cells. The subscriber subsidy costs may be lower if Wimax is built into processor chips, although this may not apply if users wish to have Wimax handsets.

Wimax Advantages : 

Wimax Advantages Wimax coverage High speed Multi-functionality within Wimax Technology Wimax Infrastructure

Wimax Future : 

Wimax Future Broadband wireless internet access via hot spots in hotels, airports, convention centres, coffee shops, restaurants, etc. is a fast growing trend.  Wimax implementations can provide a wireless range of up to 30 miles or 50 kilometres,

Conclusions : 

Conclusions So can say that Wimax is better option than Wi-Fi It is not projected to replace Wi-fi. WiMAX will become the dominant solution in China, the world’s largest potential market for broadband users.

References : 

References PDF by P. Taylor, AT&T to roll out 4G network, 2009   PDF by D. Perkins, 4G: challenges and opportunities, 2007. www.freewimaxinfo.com www.ieee16.com

Thanks…….. : 


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