the new standard 802.11ax Wi-Fi, awaited since 2014, is approaching. In order to ensure greater efficiency, the new generation of wireless technology must leave the current 802.11ac aside, getting more devices without slowing down the and speed. 2hq17
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The new AX standard promises to make the data transmission rate four times faster and make it easier to connect to public networks, which reduce capacity according to the number of connected devices. But let's explore the aspects of this new Internet standard that should arrive in 2019 further, understanding the differences and similarities between the latest technologies.
Originally published in 2013, the 802.11ac standard has been widely adopted among manufacturers over the past few years and has expanded the capabilities of multiple antennas (MIMO) to improve the transmission of the Internet signal. However, the technology still presented small “bottlenecks” when receiving many devices simultaneously, as in large events.
To solve this problem, the Wi-Fi AX generation must bring the technology MIMO-OFDM to further subdivide the signals and reduce the amount of network interference. In theory, the maximum capacity of the 802.11ax will be 14 Gb/s, while the current AC standard reaches 7 Gb / s.
In practice, tests indicate transmissions in about 10 Gb / s e 2 Gb / s, respectively. The new generation should also gain in range and will be able to work in the frequency bands 2,4 GHz e 5 GHz – the ac generation only operates at 5 GHz.
In addition to the projection of having a good performance in places with many devices, the 802.11ax standard should have a better reach through walls, an obstacle that usually causes some signal interruptions. The energy consumption of connected appliances should also be reduced by the new generation.
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Despite having a much better performance with two devices with the same Wi-Fi standard, the newer protocols standardized by the IEEE (Institute of Electrical and Electronics Engineers) are required to be backward compatible. In this way, no will be harmed by the adoption of the new standard.
Some manufacturers have already announced news with the technology. The first of these was the Broadcom, in August 2017, which revealed 802.11ax-compatible chips. According to the company, the devices received optimizations to decrease energy consumption and increase efficiency. In addition, the speed, which was previously 800 Mb/s, has increased to almost 5 Gb/s with the possibility of managing up to 50 devices at the same time.
A Intel also announced, in January 2018, the production of Wi-Fi chips compatible with the new standard.
In this case, the company estimates the transfer rate to be 2 Gb/s with for up to 256 devices connected at the same time and improves the performance of video streaming and online games.
Already Qualcomm, a competitor of Broadcom and Intel, announced in February 2018 the chips for the new Wi-Fi generation. christened of WCN3998, the microprocessor is expected to begin shipping to manufacturers in the second half of the year.
The brand promises more energy efficiency, encrypted information exchanges and Bluetooth 5.
For routers, for now, the only device d to 802.11ax Wi-Fi is the R-AX88U, Asus, revealed in IFA 2017.
The model has four long-range antennas to increase the coverage area and, according to the company, the device reaches 5.962 Mb/s: 1.148 Mb/s on the 2.4 GHz frequency and 4.804 Mb/s on the 5 GHz channel, higher speeds. to standard ac.
