Are My Wi-Fi Issues Caused by Wi-Fi Interference?

Since 1997, when Wi-Fi emerged into the consumer world, it’s become integral to everyday life. For many it’s a vital way of staying connected with friends, family and colleagues – At home, at work and even out and about.

We tend to take it a bit for granted, when in actual fact we probably feel like we couldn’t live without it – Especially during 2020! And like so many things – We really only notice how much we depend on it when it’s not there. Much like when there is a power cut and all the lights go out – When Wi-Fi isn’t working properly, we really feel it’s absence.

Is there anything quite as frustrating as dodgy Wi-Fi?

Technology wouldn’t be technology without its issues, and Wi-Fi is no exception. So what can cause Wi-Fi problems? One of the biggest issues to affect how successful and reliable a Wi-Fi connection is, is Wi-Fi interference. In this blog we’re going to be looking at how you might go about detecting whether your Wi-Fi woe is an interference issue

How do I know if my Wi-Fi issue is due to Wi-Fi interference?

Here are a couple of problems you may experience if you are having trouble with Wi-Fi interference.

 

  • Trouble with signal strength, and having low signal despite being in close proximity to a Wi-Fi broadcast device like a router
  • You have no connectivity issues when using a wired connection, but have a considerably slower connection when connecting using Wi-Fi
  • Trying to transfer files between computers using Wi-Fi, and finding it very slow
  • Being unable to pair devices using Wi-Fi or Bluetooth despite being in close proximity to the receiver
  • Your Wi-Fi connection Intermittently dropping out

 

If you are experiencing one or more of these annoying Wi-Fi issues, then it’s quite possible that something is causing interference with your Wi-Fi.

There are two main types of Wi-Fi Interference – Physical and Frequency. We’ll be covering some examples of each of these in next weeks blog. Check back then to see how you can identify what may be causing your Wi-Fi interference issue, and how you can go about fixing it.

If you require any Wi-Fi help in the meantime, then please don’t hesitate to give our Wi-Fi experts a call. We’re still working under the current government guidelines, and mainly operating out of Hampshire and London. Don’t let dodgy Wi-Fi be the reason you can’t find a connection.

WiFi Faces Technical Challenges

The emerging wireless standard promises better WiFi but the promise introduces significant complexity.

IEEE 802.11 standards (g, a, n, ac) delivered WiFi performance improvements out of the box. They focused on progressively increasing the data rate over the wireless link. All that was needed to take advantage of any new standard, was a radio chipset that incorporated the new radio and MAC enhancements.

The situation is different for the upcoming 802.11ax standard. The focus of 802.11ax is not on increasing the data rate but on improving the overall wireless network performance. This introduces significant new radio and MAC enhancements such as OFDMA and BSS colouring.

Ranking high among the issues is a transmission-scheduling mechanism. The downlink transmission scheduling in WiFi has been a simple FIFO (First In First Out) system. 802.11e introduced a small variation regarding the maintenance of multiple transmission queues for different priority classes.

However, 802.11ax introduces significant complexity in wireless transmission scheduling due to its OFDMA and MU-MIMO enhancements.

  •  With MU-MIMO, there is now an option to transmit a single wireless frame to a single client or concurrently transmit different wireless frames to multiple clients using multi-user beamforming.
  • With OFDMA, there is now an option to transmit a single wireless frame to single client using traditional OFDM or concurrently transmit different wireless frames to multiple clients using subsets of channel width.
  • 802.11ax introduces multi-user transmission in uplink direction too. The AP needs to schedule multiple clients for concurrent uplink transmissions according to their requirements.

These methods need to take into account service requirements of traffic flows, radio conditions on the channel, client capabilities and client state feedbacks. It is no easy feat to come up with scheduling mechanisms that will work in most practical scenarios with relative ease of configuration and fine tuning.

Siklu EtherHaul-2X00 Series

1 Gbps connectivity between two sites is sometimes necessary and an E-band set of radios that work within a 70-80 Ghz frequency is a viable solution.  The benefits of these radios are vast and varied.  Being relatively cheap makes them popular and this coupled with the fact that they are easy to deploy and manage makes them a Wi-Fi winner.

Siklu have created a solution in an E-band set of radios that will provide 2 Gbps connectivity over up to 7kms.  This wider channel width solution is able to work at lower modulations which makes it a great option compared to others on the market.  The EH -2X00 delivers 2Gbps full duplex point to point wireless connectivity making it robust and futureproof.

Being small in size, the tiny footprint allows easy site acquisition and an easy installation.  Moreover, the E-band spectrum is uncongested and offers a quick licensing process compared to other options.  Spectrum protection is maintained whist the cost is still relatively cheap.

The EH-2X00 series offers a great price per MB but alongside this its lower installation costs make it unbeatable in price.  The new model is based on an evolved version of a Siklu’s field proven platform making it extremely reliable.  This reliability cuts the cost of site visits which contributes to its exceptional value for money.

With 16 non-overlapping channels available to it, the EH-2X00 is able to deploy dense networks over greater distances and offers a great solution for those looking for 1Gbps between 2 sites.