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TITLE : PRACTICE OF WIMAX (IEEE802.16d)
Communication
Objectives:
i. To understand the process of setting the interface between access point and terminal.
ii. To understand the interface setting between terminal and host computer.
iii. To practice programming the communication between access point and terminal.
iv. To practice programming the communication between terminal and host computer.
Equipments:
i. WiMAX AP ( base station)
ii. WiMAX UE ( terminal)
iii. Notebook installed with Microsoft Windows 2003 Server (monitor states of WiMAX AP)
iv. Notebook installed with Montavista Linux (running for WiMAX AP)
v. SMA cables
vi. USB to Ethernet
vii. UART cable
Theory
WiMAX, meaning Worldwide Interoperability for Microwave Access, is a telecommunications
technology that provides wireless transmission of data using a variety of transmission modes, from
point-to-multipoint links to portable and fully mobile internet access. The technology provides up to
20 Mbps in real world end-user throughput without the need for cables. The technology is based on
the IEEE 802.16 standard ( also called Broadband Wireless Access). The name “ WiMAX” was created
by the WiMAX Forum describes WiMAX as a standards based technology enabling the delivery of last
mile wireless broadband access as an alternative to cable and DSL.

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1. Test Environment of the WiMAX training set
1.1 Tx_1 port and Tx_Q port in UE were connected individually,and Rx_1 port and Rx_Q port
in UE were connected to TX_1 port and TX_Q port in AP separately with SMA cable
2. Environment of WiMaX AP
2.1 Ethernet1 port (1) of AP was connected to LAN port (2) of Window 2003 server & AP
terminal PC, and UART port (3) of AP to USB port (4) of Window 2003 server & AP
terminal PC.

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3. Installation of WiMAX UE
3.1 Ethernet1 port (1) of terminal (WiMAX UE) was connected to LAN port (2) of HP
notebook PC,and Ethernet2 port (3) of terminal to USB to Ethernet LAN port (4) linked
with notebook PC.
3.2 UART port (5) was connected to USB port (6) of Montavista Linux notebook PC.
4. Streaming Server Setup
4.1 “Manage this streaming media server” was selected

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4.2 “Publishing Point” was expanded and “<Default>(on-demand)” was selected
4.3 The Source tab was pressed which was right beside the Monitor tab. .wmv.file was
selected which was executed and was double clicked.

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4.4 The moving images were not executed with the following message displayed.Then we
clicked “OK” in the Warning Message box.
4.5 The server name was then changed into 127.0.0.1 (local loopback address for streaming
server verification).Then,the moving images were executed

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Observations :
The server name did not appear at first ,then we used the PC’s IP address to track the
server’s name which was POLI-50der t
Use .wmv file to execute the location of the video and we applied
Then a message appeared in order to play the video
The video was executed and moving images was played
5. Terminal Practice device Environment Setup
5.1 HyperTerminal window was opened in the Montavista Linux notebook PC, and made the
port settings as below:

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6. Downloading process
6.1 Bash shell was executed
6.2 ‘autorun’ was executed for NFS server (by entering ‘./autorun
6.3 ID input screen appeared on the HyperTerminal window,whenMontavista booting
process was completed.’root’ was entered as the ID

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6.4 ‘WiMaxSS’ was executed by entering “./WiMaxSS”.
6.5 The downloading process was successfully completed when the phrase
‘modem_driver_fd(6) at MODEM_TX_MOD_ENTRY’ and it was possible to execute the
application programs

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7. Process for executing the loaded application programme
7.1 “WiMaxCtrl.exe’ was executed
7.2 ‘Initial Ranging’ was selected, ‘Normal procedure’ was clicked and then ‘OK’ button.’OK’
was clicked when the application program operated manually.
7.3 Step 7.2 was repeated by selecting ‘Negotiation’, ‘Authentication’, ‘Key Distribution’,
‘Registration’ and ‘Call Activation’ and result was checked

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8. Program Operating Process
8.1 After ‘Call Activation’ was completed,the session between WiMax terminal and AP was
created,so it was possible to access the Internet directly.Windows Media Player was
executed.
8.2 “Open URL” was selected in Windows Media Player. mms://129.254.216.1/sohot1.0M.wmv to the address window ( thatwas,mms://live image server address/file
name).

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Observations
We need to get the same video as in AP
Bash shell was executed and command prompt was then configured till
autorun.exe written
Booting process was then completed and ‘root’ was entered as the login ID
Then in order to play the video,we used the local loopback address to play the
video
DISCUSSION
1. List the WiMax protocol which has been implemented in steps 7 and briefly explain each.
Initial Ranging
Negotiation
Authentication
Key Distribution
Registration
Call Activation
2. State 2 differences between WiMax and HSPDA technology
wiMAX
HSDPA
Mobile WiMAX has been framed in such a way that
it is able to work in different channel BW's ranging
from 1.25 to 20 MHz.
The data transmission is up to 8-10 Megabits/sec
over a bandwidth of 5MHZ.
The security service in a WiMAX is used by an
operator to gain benefits from this service as there
is always a chance of theft of sIDervice in
connections, bandwidth and so on. Hence the
security service is divided into two parts namely the
encryption and the authentication/key derivation.
In HSDPA, users are authorized by their SIM (or RUIM) cards. HSDPA does not provide any
additional security functions.

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CONCLUSION
Advantages of WiMAXtechnology :
WiMax as a new wireless technology has greatly overcome the gaps left by the WiFi. The
major drawback with the WiFi technology was that it was not able to cater the needs of far
off users. This technology operates in the licensed frequency spectrum which gives it much
signal strength and less attenuation. The scope and future of WiMax technology is expected
to increase. Hence it is also anticipated that WiMax is efficient enough to cover an entire
conurbation.
1. WiMAX Coverage
The single station of Wimax can operate and provide coverage for hundred of users
at a time and manage sending and receiving of data at very high speed with full of
network security.
2. Wimax High Speed
The High speed of connectivity over long distance and high speed voice makes it
more demanded in hardly populated areas plus compacted areas.
3. Multi-functionality within Wimax Technology
Wimax Technology perform a variety of task at a time such as offering high speed
internet, providing telephone service, transformation of data, video streaming, voice
application etc.
4. Potential and development
Wimax Technologyis a great invention for new Era because Wimax has enough
potential for developing and opportunity to offer various types of services for new
generation. Now you can connect internet anywhere and browse any site and make
possible online conference with mobile internet, multimedia application never let
you bored, IPTV stay you up to date etc.
5. Stay in touch with end user
Wimax network always keep stay in touch with your friends and all others using
same Wimax network because it provide absolute communication service to the end
users to make possible rich communications.
6. Wimax Infrastructure
Wimax infrastructureis very easy and flexible therefore it provides maximum
reliability of network and consent to actual access to end users.
7. Wimax, cheap network

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Wimax is a well known wireless network now days because it provide a low cost
network substitute to internet services offered via ADSL, modem or local area
network.
8. Wimax Rich Features
Wimax Technology is offeringrich featureswhich make it useful. Wimax offers
separate voice and data channel for fun, the semantic connection make your
network more secure then before, fast connectively, license spectrum, liberty of
movement etc.
9. Wimax and Wifi
TheWimax networkproviding much higher speed and very long range as compared
to WiFi Technology.
10. Smart antenna and Mesh Topology
The use of smart antenna in Wimax network offering high quality widest array which
enable you to make possible communication on long route without any encryption.
It offers 2.3, 2.7, 3.3, 3.8GHz frequency ranges. The use of Mesh topology in Wimax
network for the expansion is an extensive spectrum of antennas for commercial as
well as for residential users.
11. Ultra wide Band
The unique and excellent infrastructure of Wimax is offeringUltra-Wideband. Its
exclusive design is providing range from 2 to 10 GHz and outstanding time response.
12. Homeland Security
· Security options of Wimax Technology also offer very high security because of
encryption system used by Wimax. The Wimax is providing exclusivehomeland
security. Now you can exchange your data on whole network without any fear of
losing data.
13. Lack of history
The best advantage of Wimax vendor technology is lack of history within mobile
industry for protection. Wimax push the existing technologies and forward on
steady stream. Only Wimax technology offers first major mobile standard to all
mobile broadband infrastructures. It is a foremost mobile transporter. WiMAX
technology support both wireless and wired network including cable operator which
are now successful due to core networks of Wimax.
14. Single station can serve hundreds of users.
15. Much faster deployment of new users comparing to wired networks.
16. Speed of 10 Mbps at 10 kilometers with line-of-site.
17. It is standardized, and same frequency equipment should work together.

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18. WiMax Support to Internet Backbone
WiMax is the only wireless technology which can be directly linked to the basic
internet backbone with the help of optical fiber cable. This would not only increase
the efficiency of the network, but also enables to provide internet access to those
users where it is not possible to take traditional internet set up. This is the reason
why major telecommunication and mobile companies are trying to merge WiMax
with other cellular networks. This combination would not only increase the velocity
and capacity of mobile signals but also is cost friendly. The WiMax technology does
not hold any additional royalty charges if they are blended well with 3G
technologies. Besides being convenient to use people are still reluctant to adopt it as
a major wireless technology.
19. The High Signal Strength of WiMax
The WiMax technology works in the licensed radio frequency spectrum this gives
WiMax a way to generate strong signals. This strong signal can also be contributed
to the time slot distribution to the various WiMax vendors. Hence one vendor
cannot enter into the spectrum of others. This stops the overlapping of the signals
hence they are delivered on time to their respective destinations. The WiMax
revolution has also brought some really smart devices with it like the smart
antennas. These antennas help in Line of sight service for wireless connection, the
fixed antennas are implanted on the roof top for improving signal strength. The
WiMax technology is considered as a last mile broadband access due to its ease of
installation.
20. General Benefits of WiMax Technology
The major benefit of this technology is that it comes with the simplest architecture.
One only has to employ a WiMax tower and the connection can be established. This
technology is really helpful in establishing sudden and fast network connections in
remote areas where a connection can not be established. Many WiMax networks
were instantly established to handle the communication needs in the time of
disaster and catastrophe. In 2005 when Katrina typhoon struck Florida, WiMax
networks were there to serve the communication needs of the people and
volunteers. Also WiMax can be greatly used to develop the WLAN network; this is
because both the technologies make use of OFDM. In addition to this WiMax is
greatly adopted due to its long range coverage of more than 30 miles. It is also cost
effective because it can provide the people in remote areas with a T1 connection at
affordable prices. This technology can be used along with other mobile technologies
to increase their versatility. It is capable enough to t ransfer data, voice, video and
VoIP signals. This wireless technology can replace the expense and multifaceted use
of wires with single WiMax tower. A single WiMax connectivity can support 60
businesses because it is capable of sharing data rates of up to 70bits/sec. the current
speed and bandwidth of WiMax signals can be extended using Line of sight and non
line of sight technology. Moreover the specific devices like smart antennas are now
used to increase the strength of signals to maximum.

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