Current Wireless Technologies

This article discusses the current wireless technologies including Wi-Fi 6, 5G, and Nano-satellites. It explores their real-time applications, strengths, and weaknesses.

Running head: CURRENT WIRELESS TECHNOLOGIES
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Current wireless technologies
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CURRENT WIRELESS TECHNOLOGIES 2
Current wireless technologies
Current technologies and networks permit various devices to send data to each other and
also to the web without the use of cables. The current wireless technologies which we shall
discuss includes; WIFI6, 5G and, and Nano-satellites. These technologies are mostly used in
real-time applications and below our discussion on how these technologies are used in real time
application as in [5].
Wi-Fi 6 is a current technology which is set to become faster and better with its
upcoming main update. Due to that, there are enough routers which are consist of chips, then
802.11ax Wi-Fi will never be fully implemented until December 2019, leading to updated new
wireless capabilities that will give towards the next generation network with less congestion and
more speed. High-efficiency wireless currently known as 802.11ax will be referred to as Wi-Fi 6.
The naming convention which will be set up by Wi-Fi alliance will include Wi-Fi 5(802.11ac)
and Wi-Fi 4(802.11n) as in [4] Wi-Fi 6 will be consists of a single user data rate that is 39%
faster than 802.11ac, but what is very crucial is that the specification update will be in a position
of offering four times the throughput per user in the environment which is very crowded for
example [4]. For the various improvements in this technology, 802.11ax implemented a varies
changes which include multi-user technologies which come from the cellular industry such as
OFDMA and MIMO methods that improves performance and capacity by supporting series of
connections. The strength of Wi-Fi is that it allows users to connect to multiple devices over only
one network. In addition, can connect devices in long distance distances without the use of the
cable. The weaknesses of Wi-Fi are that they are more expensive, slower and less secure.
Concerning security issues, WIFI can be vulnerable to data exposure when weak passwords are

CURRENT WIRELESS TECHNOLOGIES 3
used. Below is a clear comparison of the various generation of Wi-Fi in the current technology as
explained [3].
802.11n vs. 802.11ac vs. 802.11ax
802.11n (Wi-Fi
4) 802.11ac Wave 2 (Wi-Fi 5) 802.11ax (Wi-Fi 6)
Released 2009 2013 2019
Bands 2.4GHz &
5GHz 5GHz 2.4GHz & 5GHz, spanning to
1GHz - 7GHz eventually
Channel
Bandwidth
20MHz, 40MHz
(40MHz
optional)
20MHz, 40MHz, 80MHz,
80+80MHz & 160MHz (40MHz
support made mandatory)
20MHz/40MHz @ 2.4GHz,
80MHz, 80+80MHz &
160MHz @ 5GHz
5G technology is the next generation of wireless communication which will be expected
to connect to the internet 40times faster than 4G LTE. The 5G technology may use spectrum
bands which includes millimeter which will carry a large amount of data over a shorter distance.
The weakness of this technology is that it can be easily obstructed by the walls, building, trees
and also the weather. Its strength is that it will be designed to give faster download speeds and
low latency. The security issue in technology is how this technology will be secured from
intruders as in [2]
Nano-satellites this is a current wireless technology which is like mobiles, satellites are getting
better and smaller. The Nanosatellites are the satellites that are almost becoming small in size.
The weakness of this technology is that it will be too costly. Its strength is that is the wireless
technology will be able to transmit data at the highest frequency. The security issue for this
technology is that it can be obstructed by wind and bad weather.

CURRENT WIRELESS TECHNOLOGIES 4
Among the wireless technology which I have talked about the one which I will propose is the
Wi-Fi6, this is because Wi-Fi6 is advanced wireless technology which can fully support real-
time applications. Also as compared to other wireless technologies Wi-Fi covers greater range as
stated [1] Also, wifi6 have various capabilities of offloading traffic from the cellular network in
a place where there are poor receptions and also it supports a series of data streaming with
throughput increase.

CURRENT WIRELESS TECHNOLOGIES 5
References
[1] Raychaudhuri, D., Seskar, I., & Ott, M. (2016). ORBIT: wireless experimentation. The
GENI Book (pp. 63-95). Springer, Cham.
[2] Yaqoob, I., Hashem, I. A. T., Mehmood, Y., Gani, A., Mokhtar, S., & Guizani, S. (2017).
Enabling communication technologies for smart cities. IEEE Communications Magazine,
55(1), 112-120.
[3] Liu, Y., Hartman, C. A., & Lehmann, S. (2019). U.S. Patent Application No. 10/172,146.
Moghadam, N. S., & Khazaei, A. A. (2016). Using HAPS to Present a Multi protocols Library
by UserDemands. International Journal of Scientific Engineering and Technology, 5(5),
282-286.
[4] Li, Q., Wei, Y., Ding, C., Tan, M., Zhang, L., Lei, X., ... & Gong, Y. (2017). Dual-band
circularly polarised planar monopole antenna for WLAN/Wi-Fi/Bluetooth/WiMAX
applications. IET Microwaves, Antennas & Propagation, 12(6), 972-976.