BN303 - Wireless Networks and Security Assignment - WLAN tools and Advanced Wireless Technologies, Melbourne Institute of Technology, Australia

The purpose of the assignment is to become familiar with WLAN tools and develop an understanding of wireless technologies used in various networks. Students will be able to complete the following ULOs:

1. Compare standards-based technologies used in various networks;

2. Test and evaluate various wireless networks performance;

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Task - Scenario: A local engineering group has assigned you to present findings on 3 most recent wireless technologies. Research these technologies and discuss how they could be used in real time applications. Identify the strengths, weaknesses and security issues of these wireless technologies. Conclude the report by proposing, the wireless technology, which you believe, would stand out. Provide a valid argument for the proposal. Use diagrams, tables, and graphs where appropriate.

Answer - Latest Wireless Technologies

Wireless technology is gaining extreme prominence due to the fact that more and more people are dependent on wireless technologies for their day to day operations. There is extensive dependence for people on wireless technology for a variety of needs like device operations, interconnected business communication, vehicle communication etc. Businesses are depending on wireless technologies for communication like never before in the past. This extreme significance and need enabled high pace development of wireless technologies in the recent years. There are several changes incorporated in sophistication as well as in improving the performance in terms of reliance, reduced latency as well as increased security. Also, few technologies have emerged with more cost-effectiveness for the sake of making technology more versatile. In any case, the following part of the write-up is presented as part of an engineering project consultation deliverable. The report is present with a comprehensive overview of three different wireless technologies of recent years. They are projected with comparative advantages, disadvantages, applications and limitations. Finally, a proposal is provided for the selection of the right technology from the available 5 different options of wireless technologies.

Overview of the technologies

Technology in Wireless is every changing at past pace; the current 4G LTE technology is getting replaced with 5G technology, Wi-Fi 6 is another recent technology supplementing the current wireless operations. 5G technology is already replacing the current 4GLTE technology in united states; it is going to replace the total wireless technology in the country in the coming few years. 5G technology does have remarkable speed and minimum latency when compared with 4G LTE. The ultimate objective of 5G technology is to enable quicker communication between networked devices. This will work on to provide more convenience to the users and will add value to the business users. 5 G wireless technology will come with three different bands, the low band, the mid-band and the high band. Using this multiplicity of bands, technology will enable communication with different devices and will enable quick communication in broadband and commercial traffic requirements. As of now, the evolution of 5G technology was done to enable much quicker communication among the device which does have wireless technology enabled communication channels. For example for autonomous vehicles, quicker communication is very much essential and hence 5G like high-speed communication channels will of good use to enable communication in these devices. The coming era is of IOT(Internet of Things), the interconnection of IOT devices with each other and with other components can be just enabled using the 5G technology for better benefits.

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Wi-Fi 6 is the recent evolution in the series of Wi-Fi 5 technologies. The technology has better prospects in terms of enabling the communication at faster pace particularly in the locations where there is high congestion. In applications like stadiums, where there is large congestion of users in small locations Wi-Fi 6 can be employed. Wi-Fi 6 will use OFDA technology to achieve such performance characteristics. Wi-Fi 6 operational principle consists of dividing the wireless channels into small bands and will incorporate dated means to be connected with different devices, and this offers extensive connectability with different devices in less time practically.

NFC(Near Field Communication) is another latest development in wireless technologies. The technology is contained in communication across different devices which are in close proximity. Typical distances between the devices can be as low as 20 centimeters. When they are located in such small distances, the power requirements for communication between the devices is also very less. The speed of information transfer and the precision of the transmission is also commendable. As of now, NFC is being employed in classified applications like those in Contactless payment systems. Digital wallet companies are keen to share the information using NFC applications. Orange has already arranged NFC communication channels. Cisco has employed Lynksys EA6500 for NFC enabling. Samsung Tec Tiles also worked on to enable NFC stickers to initiate a set of programs in NFC enabled devices.

There are several other technologies gaining ground in wireless in recent years like RFID, Wi-Fi Direct, Wi-Fi Passport, WiGig and WiFi Miracast etc.

Typical salient features of the selected wireless technologies are encapsulated as in the following tables:

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Recommendations:

The current engineering organization needs somewhat a technology that does have the capacity to cater the needs for a considerable good range of applications. Like for example, a range of total space of about 10km needed. Since it is an engineering organization and it needs to communicate different worker groups on site through wireless communication, there is a need for a technology that do have sufficient bandwidth as well capacity to reach wide distances. Hence NFC is not suitable for this application requirements. At the same time, Wi-Fi 6 and 5G technologies are equally compatible for the range of the applications there in sight. However, still Wi-Fi 6 can be of good usage for the application requirements. This is due to the fact that when the organization has multiplicity of devices located in the field, it is possible that all of them can offer congestion to the device wireless operations and hence Wi-Fi 6 can offer a better opportunity to cater all the device traffic requirements and will meet the needs of bandwidth, data rate and range requirements as well. Also, there is good scope for further maturity of the technology, and hence Wi-Fi 6 can be suggested for the current engineering organization requirements.

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Figure 1 Technology maturity for wifi 6

Figure 2 5G features

Figure 3 NFC for payment at band

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