Wi-max
and HSPA is the most famous wireless internet access technologies in Sri Lanka.
And there is a good competition of giving these technologies to public with
ADSL. These two technologies are giving different capacities and benefits to
customers but both are wireless technologies.
When
we compare wimax and HSPA with ADSL both are broadband as ADSL. But there are
many pros and cons in these technologies.
The pros of Wimax and HSPA
Both are wireless
technologies.
We
know ADSL is wired one; if we want to get access of internet through ADSL,
there are essential requirements we should fulfill. First we need to have
normal PSTN connection and some equipment like and modem. We can’t access it in
where in specific location.
But
Wi-max and HSPA are wireless, therefore we don’t need to implement equipments
before getting the connection.
Wimax and HSPA can
give high capacity than ADSL
If
we use ADSL as our internet connection our capacity may be maximum upstream of
1Mbps and downstream of 8Mbps.
But
if we use HSPA can have 7.2 Mbps and using Wimax up to 11.3 Mbps.
High coverage
ADSL
is very much distance sensitive technology. In ADSL the capacity will decreased
when the distance is increased from to DSLAM to subscriber. Therefore according
to business purposes ISP doesn’t provide connection if the customer is more
than 5 km. If they provide within this distance, they can only give download
capacity of 512 kbps.
But
Wi-Max can cover a distance of 50 km for fixed stations, and 5 - 15 km for
mobile stations. Therefore large number of customers can be met with their
requirements by using Wi Max.
And
HSPA depends on mobile coverage of the provider. It is also higher than ADSL.
The Cons of Wimax and
HSPA
Wi-Fi and HSPA are not
reliable like ADSL.
There two
technologies are wireless, there fore the signals of the wireless connection
can be distort or get corrupted due to varies factors like weather,
electromagnetic (EM) interference. But ADSL is more reliable than both.
Cost of connection
We
know ADSL gives unlimited internet access with around $30, but when use HSPA
limited package we need to pay $40 and in wimax $30 with installation cost of $60.
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