This Presentation Shown you the Basic of WiMax Network.

1. Prepared By
Ripan Kumar Ray
Banglalion Communication Limited
Topic: Worldwide Interoperability for Microwave Access
(WiMAX)

2. Internet Connections
Three traditional ways to connect Internet:
1)Dial-up access – It is an Internet connection that will be established by using a
modem which act as data transfer medium when user initiates dial up connection.
2)Broadband access -This refers to high-speed data transmission in which a single
cable(DSL,cable modem) can carry a large amount of data at once.
3)WiFi access - Wi-Fi refers to wireless networking technology that allows
computers and other devices to communicate over a wireless signal.

3. What is WiMAX ?
• WiMAX is short for “Worldwide Interoperability for Microwave Access”
• WiMAX is technically also known as “IEEE 802.16”
• WiMAX is a wireless communications standard designed for creating Metropolitan
Area Networks(MANs).
• It is similar to the Wi-Fi standard, but it can broadcast as big as 3,000 square miles.

4. Architecture of WiMAX
A WiMAX system consists of two parts:
• WiMAX receiver: The receiver could be a small box or PCMCIA card, or they could
be built into a laptop the way Wi-Fi access is today.
• WiMAX tower: It can provide cover to a very large area as big as 3,000 square
miles.

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7. Comparison with other Wireless Technologies
Coverage Area
• WiMAX 802.16a/Rev d - 30 Miles Max
• WiMAX 802.16 - 1 – 3 Miles
• WiMAX 802.16e - 1-3 Miles.
• Wi-Fi 802.11 - 300 feet
• 3G and Mobile-Fi - 5 Miles
Maximum Speed Supported
• WiMAX 802.16 - 280Mbps
• 3G - up to 2 Mbps
• Wi-Fi - up to 600 Mbps
• Mobile-Fi -- up to 80 Mbps

8. Speed vs. mobility of wireless systems:
HSPA - High Speed Packet Access
UMTS- Universal Mobile Telecommunications System
GSM- Global System for Mobile Communications

9. IEEE 802.16 Specifications
• Range - 30-mile (50-km) radius from base station
• Speed - 70 megabits per second
• Line-of-sight not needed between user and base station
• Frequency bands - 2 to 11 GHz and 10 to 66 GHz (licensed and unlicensed bands)

10. Advantages
WiMAX 802.16 is surely an advanced technology when compared with
the other technologies.
• Bandwidth
• Coverage area(Single station can serve hundreds of users)
• Plug and Play
• Quality of service and secure too.
• Speed of 10 Mbps at 10 km with line-of-site.

11. Disadvantages
• Interference with Bluetooth wireless communication
• The cost of equipment is really high
• Power-consuming technology
• High installation
• Signal interruption in bad weather
• Line of site is needed for longer connections

12. Thank You