1. WiMAX and its impact
on
wireless communication
Presented by Zhen-Yu Fang
2. What is WiMAX?
• WiMAX: Worldwide Interoperability for
Microwave Access
• It is a telecommunications technology
• It is based on IEEE 802.16 standard, which
is called Wireless MAN (metropolitan area
networks)
• The last mile that can be used as alternative
of cable and DSL internet access
4. The Architecture of WiMAX
• WiMAX Mobility Subscriber Station
Mobile subscribers (MS) use mobile subscriber stations (MSS)—
generalized mobile equipment that provides connectivity between
subscriber equipment and base station equipment
• WiMAX Access Service Network
Access Service Network (ASN) is defined as a complete set of
network functions that provide radio access to a WiMAX subscriber,
including a proxy AAA server, DHCP addressing function, and other
IP-based resources, including network management
• WiMAX Connectivity Service Network
Connectivity Service Network (CSN) is defined as a set of network
functions that provide IP connectivity services to the WiMAX
subscribers through the ASN
5. The Architecture of WiMAX
• Network Access Provider (NAP)
Owns the network and operates
• Network Service Provider (NSP)
Owns the subscriber and provides service. NSPs shares the
NAP or a NSP uses multiple NAPs
• Application Service Provider (ASP)
provides application services.
6. The Features of WiMAX
• Long Rang
Connectivity from long range is much highlighted feature of WiMAX.
Theoretically, it can provides range up to 30 miles.
• Mobility
Another significant feature of WiMAX technology is connectivity on
move.
• Interfacing
Since one Base station covers limited range so connecting multiple
base stations to each other increase that much range for connectivity.
• Accessibility
Accessing WiMAX base station is not a difficult task, its long range
capability provides connectivity at home from base stations within the
range.
7. Compare with WiFi and WiMAX
• WiFi:
1. Used for developing wireless LAN to access high speed
Internet or access just a network for file sharing and software
services.
2. Mostly connected to network in certain area which may not
be connect to Internet.
3. Shows that quality of service (QoS) is relative to packet flow.
• WiMAX:
1. Refer as Wireless broadband access, which can transfer not
only data but also voice data, video data etc and at much
higher rates.
2. There are multiple standards of 802.16 a, b etc, so they are
used for different types of access from mobile connectivity to
fixed location connections.
3. Shows that quality of service (QoS) parameters can be
guaranteed for each flow.
9. Conclusion
WiMAX is a powerful wireless services
access platform that will increasingly
support a wide range of revenue-generating
voice and data applications for network
service provides around the globe.
10. Reference
1. Mustafa Ergen, The Access Service Network in WiMAX:
The Role of ASN-GW, WiChorus Inc..
2. Mahmoud Nasreldin, Heba Aslan, Magdy EL-Hennawy,
and Adel El-Hennawy, WiMAX Security, 22nd
International Conference on Advanced Information
Networking and Applications, pp. 1335-1340, 2008.
3. WiMAX WiFi And Wireless Network, online article on
<http://www.wifinotes.com/wimax/index.html>
4. WiMAX Security for Real-World Network Service
Provider Deployments, Motorola Inc., 2007
