How to Setup a Network are also less likely to be disconnected from
latency-sensitive applications such as streaming video or Voice over IP calls
while on the go. This is possible through a variety of techniques managed by
the controller to reduce the time it takes to go from one access point to another,
including support for standards such as 802.11r and 802.11k.
PoE for Power
The use of Power over
Ethernet (PoE) eliminates the need to route separate power cords to individual
access points and bulky power blocks. This increases reliability considerably,
as it is much easier to replace PoE network switches or injectors that conform
to standards than external power adapters with their different power outputs
and connectors.
It should be noted that
802.11ac Wave 2 access points generally require 802.3at, also called PoE +, to
operate at full capacity; some capacities can be silently deactivated or
reduced if provided by the old 802.3af standard.
How to Boost
Performance
Apart from unreliable
hardware, the biggest bug in a Wi-Fi distribution is probably a poor wireless
performance. Despite a gradual increase in bandwidth in the latest Wi-Fi
standards, the available spectrum is limited, subject to external interference
and generally shared between different devices on the wireless network.
The increasing use of
the 5 GHz band and 802.11ac Wave 2 access points seems destined to alleviate
the situation, even if there are still some fundamental steps that small
companies can take to ensure the functioning of their Wi-Fi network. -Fi stays
fast. So what are the considerations that companies need to consider before
capacity problems arise?
Choosing The Right
Access Point Hardware
The first step towards a high-performance wireless network would probably be to choose the right access
point hardware. While it doesn't make sense to get anything other than an
802.11ac access point today, device manufacturers often differentiate their
product line with different levels of support for multiple inputs and multiple
outputs (MIMO), which allows access points client and Wi-Fi to transmit and
receive multiple data streams simultaneously.
More specifically, an
access point with a 1x1 radio/antenna chain can generally support a transmit
stream and a receive stream, 2x2 supports two streams in each direction, 3x3
requires three and a 4x4 device takes four. Single-user MIMO (SU-MIMO) works
with only one client device at a time, while multi-user MIMO (MU-MIMO) in Wave
2 802.11ac access points can transmit to more than one client device at a time.
How To Use Public Wi-fi
Hotspots Safely
While support for
multiple data streams is still good, support from client devices is needed to
take advantage of it. Many Wi-Fi devices only have a 1x1 or 2x2 radio/antenna,
which means that investing in a 3x3 access point may be enough for future
protection. MU-MIMO access points (Wave 2 802.11ac) are desirable for medium or
large offices if the budget allows.
Distribute Multiple
Access Points
Unless your office has
few users and is in a very compact area, you will need to deploy more than one
access point to adequately cover the wireless workspaces on the 2.4 GHz and 5
GHz bands. Obviously, this works only with a company-centered Wi-Fi system
where access points are centrally managed.
Usually, it is not
necessary to manually choose a channel because these systems usually
incorporate some form of the dynamic channel management system. This involves
monitoring and analyzing Wi-Fi broadcasts over time, switching to the less
congested channel, and even ensuring that nearby access points within the
cluster will not cause interference. Although most are fully automatic, some
may offer modification possibilities.
Place Your Access Points
Correctly
Often overlooked by
small businesses, poorly positioned access points are the ruin of a good
wireless network. Companies that are deployed should avoid placing access
points near walls and other obstacles that can prematurely mitigate wireless
signals.
An easy way to estimate
coverage is to view the RF energy that emanates in a straight line from each
access point. Locations with multiple obstacles may be wireless dead spots and
should be supported by placing another access point nearby. In this perspective,
the installation of access points on the ceilings or on the walls is ideal
considering the minimum obstacles that are there.
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