wimax presentation

1. Presented by
Naveed Ahmad
UET Peshawar

2. “WiMAX-we believe it’s the next big
thing in the wireless broadband arena”

5. INTRODUCTION:
 WiMAX(Worldwide Interoperability For Microwave
Access) is a wireless communications standard
designed to provide 30 to 40 megabit-per-second
data rate.
 A fourth generation (4G) technology
 WiMAX is technically also known as “IEEE 802.16”
WiMAX is a wireless communications standard designed for
creating Metropolitan Area Networks(MANs).

6.  It allows a user, to browse the internet on a laptop
without physically connecting it to a router.
 It involves microwaves for the transfer of data wirelessly
WiMAX system consist of:
1) A WiMAX tower, similar in concept to a cell-phone
tower - A single WiMAX tower can provide coverage
to a very large area as big as 3,000 square miles
(~8,000 square km).

7. 2) A WiMAX receiver - The receiver and antenna could be a
small box or Personal Computer Memory card, or they could
be built into a laptop the way Wi-Fi access is today

8. MODES OF OPERATION
Non-line-of-sight
 Wi-Fi sort of service
 A small antenna on your computer connects to the tower.
 WiMAX uses a lower frequency range -- 2 GHz to 11 GHz
(similar to Wi-Fi).

9.  A fixed dish antenna points straight at the
WiMAX tower from a rooftop or pole.
 The line-of-sight connection is stronger and
more stable, so it's able to send a lot of
data with fewer errors
 It use higher frequencies, with ranges
reaching a possible 66 GHz.
 At higher frequencies, there is less
interference and lots more bandwidth
Line-of-sight

11.  A WiMAX tower station can connect directly to the
internet using a high-bandwidth, wired connection.
How It Works?
 It can also connect to another WiMAX tower using a
line-of-sight, microwave link.
 This connection to a second tower (often referred to as
a backhaul), along with the ability of a single tower to
cover up to 3,000 square miles
 It allows WiMAX to provide coverage to remote rural
areas

13. Connectivity
 Devices that provide connectivity to a
WiMAX network are known as the
“subscriber stations”.
Some of the portable units are:
 Mobile Phones
 PC peripherals
 Laptops
 Gaming consoles
 MP3 Players

14. FEATURES OF WIMAX
 Frequency bands - 2 to 11 GHz and 10 to 66 GHz
(licensed and unlicensed bands)
 Range – 30 mile (50-km) radius from base station
 Speed - 70 megabits per second
 Coverage-A single tower covers upto 3000 sq.miles
so remote areas can easily get broadband access

15. Competing Technology

16. Applications
According to WiMAX forum, it
supports five classes of
applications:
 Multi-player Interactive
Gaming.
 VOIP and Video Conference
 Streaming Media
 Web Browsing and Instant
Messaging

17. Present research work on WiMAX
 WiMAX2 is the present ongoing development in the WiMAX
versions.
 That is to increase the speed of existing WiMAX network.
 Currently existing WiMAX versions provides minimum of 30 to
40 megabits per second of speed.
 But the goal of the WiMAX2 is to get 100 Mbit/s for mobile
devices and 1 Giga bits per second fixed type of WiMAX
devices and 4G for next generation mobile network

18. References…
• www.howstuffworks.com
• www.ask.com

19. Thank You!!!!