how Wireless LANs and Wireless MANs have been implemented
in various industries/sectors in India. by Brian Pereira
Company: National informatics Center (NIC) is a
premier Information Technology organization in India.
It provides IT solutions to the Government of India.
NIC has set up a satellite-based nationwide computer
communications network called NICNET, having over 1,400
nodes, connecting the national capital, state capitals
and the district headquarters to one another.
Requirement: NIC's wireless data networks are
hub based. All communication is directed through the
hub. These hubs are located at NIC offices in all cities
where they are connected to the NICNET VSAT through
a high-speed port. NIC wanted to connect the state capitals
and governments departments to the NIC hub network using
a Wireless MAN (WMAN) last mile access solution. The
company chose a WMAN solution because using leased lines
for network connectivity was a very expensive proposition
and the recurring cost of leased lines is high.
Solution: The pilot project took off in three citiesDelhi,
Bangalore and Hyderabad in 1997. It was later extended
to 18 cities. Lucent's Wireless LAN bridges and wireless
NICs were the core products that were used in the implementation.
Other products such as Avaya Access Point, wireless
repeaters, cables, antennas, wireless network management
software have also been used.
Bangalore-based Convergent Communications implemented
the WMAN solution for NIC. The wireless solution is
most appreciated in places where there is no telephony
infrastructure. The solution provides high bandwidth
and dedicated connectivity to both state and central
The USD 1.5 billion giant steel conglomerate Jindal
Organization is ranked sixth amongst the top Indian
business houses. It recently initiated its pilot wireless
project with a successful WLAN implementation at the
Hissar plant (Haryana) of its USD 260 million flagship
company, Jindal Strips Limited (JSL). The portfolio
of JSL includes products ranging from stainless steel
hot-rolled/cold-rolled coils, plates and flats, to slabs
Requirement: A network was required to interconnect
JSL's Cold Roll Division (CRD) and the HR and Administration
Division (HRD)the main road and a railway track
runs between the two. The two divisions, standing opposite
each other across the road, were first connected through
optic fiber, which went from HRD to CRD under the main
road and railway track. With a government department
digging the road from time to time, the vital communication
links were lost, thus hampering connectivity. Hence,
the very first need was to establish a continuous and
unbreakable communication link between two points across
the road. The company concluded that wireless would
be the best bet in terms of reliability and continuity
of communication links. There were other reasons why
wireless was chosen to replace the fiber optic links.
The intense heat of the furnaces in some areas proved
to be too harsh an environment for the exposed fiber.
Solution: The WLAN solution deployed at JSL's Hissar
plant comprises 3Com's 11 Mbps Ethernet Wireless LAN
building-to-building bridge, omni direction antenna,
directional antenna and Air Connect 11 Mbps WLAN, Air
Connect Wireless PCI Card, 40B CR-E1. In addition to
this certain security measures have also been deployed.
Company: A premier technical and educational institute
Requirement: The institute was facing the problem
of providing network access in places where LAN cabling
was not feasible, either because of technical or administrative
reasons. Frequent mobility within various locations
inside the building was a requirement for a certain
workgroup. The WLAN solution is mainly used to access
the Internet and e-mail.
Solution: The current deployment involved implementation
of multiple access points catering to clients spread
across different work places. The access point acts
as a wireless hub that bridges data from the wired LAN
to the wireless clients. Deployment, testing and integration
of the whole network solution took a very short time
as compared to the wired network.
Wipro Infotech has implemented the WLAN solution using
Cisco's Aironet 340 product. The Aironet 340 was chosen
because it works in the unlicensed 2.4 MHz range and
can deliver a bandwidth up to 11 Mbps.
The implementation will give users mobility within the
building with speed as compared to a 10 Mbps LAN network.
This 'always connected' feature will enhance the productivity
of individuals who are always on the move.
Company: P&O Ports is a leading global port
operator, with 21 container terminals in 19 countries
and operations in a total of 84 ports. P&O Ports
(India) is located at NSCCT, Nhava Sheva, Navi Mumbai.
Requirement: The port uses heavy mobile cranes that
are used for loading the ships. These cranes are computer
controlled and are constantly moving. Earlier they were
controlled through wires connected to them. However
these cables used to get cut, due to the movement of
Solution: The movable and immovable cranes were
connected to base stations through a wireless LAN, thus
enabling unfettered movement of the cranes. Although
the range of an 802.11b WLAN is 35 meters indoors and
100 meters in the open, this can be extended by strategic
placement of antennae and access points.
Cisco's Aironet Bridge and other wireless solutions
were chosen. Tulip IT Services Ltd. was involved in
the implementation of Cisco solutions for this network.
Company: Hotel Le Meridien and Taj Mahal, Mumbai.
Requirement: The hotels needed to provide broadband
Internet access to their guests. Also instead of providing
Internet access to all rooms, they preferred to create
an infrastructure only for the actual users.
Solution: Cisco access points were installed at
strategic locations so as to cover the entire hotel.
Those guests that wish to use the Internet can rent
a PC Card from the reception and have instant access.
This is a cost-effective and focused deployment covering
only actual users. The Aironet solution also supports
Secure VPN Connectivity to ensure that sensitive business
communications are secure.
Tulip IT Services Ltd. was involved in implementing
these wireless networks.
Company: HDFC Bank.
Requirement: The bank required a medium for connecting
branches within cities to the main regional branch in
Solution: HDFC Bank is currently using Cisco Aironet
to connect various branches within cities.
Tulip IT Services Ltd. was involved in the implementation
of this network.
Company: Bank of Punjab Ltd.
Requirement: Inter-city and intra-city connectivity.
Solution: The bank's network is based on leased
lines for inter-city and wireless for intra-city connectivity.
Over 150 radios have been installed. This has enabled
the bank to achieve an uptime in excess of 99.5 percent.
The bank will soon have connectivity to new branches/ATMs.
It will also run voice/data on the network.
Tulip IT Services Ltd. was involved in the implementation
of this network.
Company: EIPL (Exel India Private Limited), a logistics
solutions provider company, was looking for a reliable
means to connect its offices in Mumbai. Exel in India
has its central office in Mumbai and a total of 22 offices
and eight warehouses.
Requirement: The company was looking for reliable
means to connect its offices in Mumbai. It found leased
lines unreliable and inflexible for this purpose and
had to ensure always-on communication links between
its central office and operations offices in Mumbai.
Solution: After a line-of-sight survey, the company
implemented wireless RF links between six offices in
Mumbai. Each link offers bandwidth of 4 Mbps.
Tulip IT Services Ltd. assisted in the survey and
in the implementation of this network.
Brian Pereira can be reached at firstname.lastname@example.org