WiMAX broadband service likely

DHAKA: A new generation high-speed internet broadband service is expected to be introduced in Bangladesh within six to eight months, BTRC officials and international telecom vendors said. via South Asian Media Net

[Habib]

WiMAX is a short name for Worldwide Interoperability of Microwave
Access. WiMAX is described in IEEE 802.16 Wireless Metropolitan Area
Network (MAN) standard. It is expected that WiMAX compliant systems
will provide fixed wireless alternative to conventional DSL and Cable
Internet.

WiMAX technology works little different than WiFi technology. In wifi
computers can be connected through wireless LAN card to near by
access point, wireless router or any Hotspot, it does not works this
way when we talk about connectivity in WiMAX. WiMAX network
connectivity constitutes of two parts, one can define as WiMAX tower
or WiMAX booster, it is known as WiMAX Base station, whereas the
other portion is WiMax receiver. Let's talk about them in little
details for better understanding the working.

WiMAX base station: As name explains base station is place where
WiMax signals are broadcasted. It consists of electronic devices and
WiMax Tower. This tower works exactly like GSM network phones towers
standing high up in the air to broadcast radio signals. WiMAX tower
base station can cover up 10Km radius. In theory it suggests to cover
a lot more distance than just 10Km, it can reach some where about 50
km (30 miles), but in fact due to certain geographical limitations it
goes as far as 10 km approx. 6 mils. Any wireless connecting device
for WiMAX will connect to WiMAX network if fallen in to the range.

WiMAX Receiver: It is device or devices which receives the signals
from WiMAX base station and connects to the WiMAX networks. These
devices are usually stand alone Antenna or PCMCIA slot card for
laptops or computers. Connecting to WiMAX base stations works as
similar as connection of Wifi to access point works, the only
difference is that WiMAX covers much wider area.

One WiMAX base stations can be connected to several other base
stations using high speed microwave link, this link is usually known
as backhaul. This way WiMAX roaming can be achieved and connections
can be maintained on move. Wimax support many protocols like ATM,
IPv4 Ethernat, VLAN etc, this makes WiMax a rich choice for full of
services from data to voice.

WiMAX is suitable for the potential applications like connecting Wi-
Fi hotspots with each other and to other parts of internet, wireless
alternative to cable and DSL for last mile broadband access,
providing high-speed data and telecommunications services and adverse
source of internet connectivity as part of a business continuity plan.

It is projected that if Wimax service starts, it will draw near about
10,000 users by the end of 2008 and by the end of 2010 it will be
over 200,000. Compared to other countries, Bangladesh is a late
entrant to the world of WiMAX. Worldwide traditional phone
technologies are being replaced with WiMAX. A good number of national
and international experts presented their papers on prospects of
WiMAX technology in Bangladesh. So Wimax launching will bring a
revolutionary change in Bangladesh telecom sector.

(Md. Habib-ur-Rahman Mollah, Dept. Of Computer Science and
Engineering, Mawlana Bhasani Science and Technology University,
Santosh, Tangail.)

[Mohd Israil]

Could You tell me the channel characterstics bwtween basestation and mobile stations

[Mohd Israil]

data transfer rate and the doppler spread introducced by the propogation of the signal ?

[Trule Speaking]

Cant govt set up a home to home to offices to schools to college network? Communication is a must. We need dedicated entrepeneurs like India.

[Hoque]

The new internet provider "Bangla lion" claims that they are providing the wimax internet access to the client level is 128kbps connection,my question is-*Is it dedicated or so called shared (128 Devided by 8= 16)connection?If it is then this is nothing but a eye wash!!some one please respond if you know.

[Masud]

Is it work at wi-fi device?