Wireless Technologies: Strengths and Weaknesses

This assignment delves into a comparative analysis of four prominent wireless technologies: Near Field Communication (NFC), Radio-Frequency Identification (RFID), Wi-Fi, and Bluetooth. It outlines the distinct advantages and disadvantages of each technology, highlighting factors such as range, security, implementation complexity, and user experience. The aim is to provide a comprehensive understanding of these technologies' capabilities and limitations in diverse applications.

Running head: WIRELESS NETWORKING
Wireless Networking
Name of the Student
Name of the University
Author’s notes

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WIRELESS NETWORKING
Table of Contents
Solution 1.............................................................................................................................2
Solution 2.............................................................................................................................3
Solution 3.............................................................................................................................4
References............................................................................................................................9

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Solution 1
There are various kinds of antennas. These antennas are used for various other purposes. They
have their own benefits and limitations. Some of them are as follows:
Yagi Antenna: The antennas that are used for the reception of television and radio receptions are
known as Yagi antennas (Cai, Guo & Bird, 2012).
Strengths: There are several advantages mentioned as follows:
 These antennas have the ability to filter any type of noise signals. Their filters are
designed in that way.
 They have the capability to move over all types of structure. Their construction is
done in that way.
 They are able to receive any type of signals of lower power because they are
directional. They are known to have high gain.
Weaknesses: These antennas have certain limitations as follows:
 They have a tendency to degrade due to certain electrical characteristics.
 They have a limited bandwidth and range of frequency.
 Long lengths are required in order to attain high level of gain.
Horn Antenna: The main motive of these antennas is to receive and transmit microwave signals
(Bilotti et al., 2012).
Strengths: The benefits are as follows:
 The construction of these antennas is simple.
 It has very simple and easy interface.
 The bandwidth of these antennas is wide.
Weaknesses:
 There are severe issues regarding fluctuations.
 The lower frequency is unfavorable in nature.
Cellular Antenna: Cellular antennas find their applications in the use of cell phones
(Huang, 2013).

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Strengths: Some of the benefits are as follows:
 They have a wide bandwidth.
 Their range of operations is wide.
 The security associated with them is more.
 The level of interference is low.
Weaknesses:
 They are extremely complex.
 The cost of these antennas is too high.
The new digital antenna will become the most dominant player in the coming future. The reason
behind this is these antennas will play a major role in order to link wireless networks. This type
of antenna allows the data to be transmitted at a high speed because of wide bandwidth. It has
got better radiation of frequency that will help to develop wireless networks in the future.
Solution 2
Code Division Multiple Access or CDMA and for Frequency Division Multiple Access or
FDMA are methods of wireless transmission (Glisic & Leppänen, 2013). The table below gives a
comparison and contrasts both the techniques.
CDMA FDMA
Orthogonal codes are used for the purpose
of spreading the spectrum.
Here sub bands are used for the purpose of
segmenting the frequencies that are disjoint.
There are several terminals that are
uninterrupted. On the other hand they remain active
at the same time (Rom & Sidi, 2012).
Every terminal has a separate frequency
band and there is no interruption.
There is no limit to channel capacity but it
has interference limit.
The cell capacity is not wide enough. It is
limited.
The system here is flexible in nature and
there minimum need for planning.
The multiple access method is a robust and
simple one.
It has got very complex receivers and the
senders are also very complicated.
This method used here is not flexible
because the frequencies are scarce.

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Data is transmitted simultaneously and all
the users use same frequency.
The channel is said to be idle when the
senders are not transmitting data.
Solution 3
Slide notes: NFC, RFID, Wi-Fi and Bluetooth technology are the most recent and
advanced technologies used in this present era. Each of them has its own benefits and loopholes.

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Slide notes: Strengths:
It makes it convenient and easy for connecting different mobile devices.
Inbuilt installation of this technology makes it very easy for user to use this technology
(Heydon, 2013).
Weaknesses:
It can connect devices in a very short range and distance.
Virus attacks can take place in the phone that uses this technology

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Slide notes: Strengths:
The level of security is very high.
This tag can be written and modified unlike barcodes that can be read only.
Weakness:
More time is required for the purpose of programming.

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WIRELESS NETWORKING
Slide notes: Strengths:
There is PIN protection that gives high security.
There is high level of encryption that is used for academic areas (Coskun, Ozdenizci &
Ok, 2013).
Weakness:
Small organizations face difficulty in installing the system.

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Slide notes: Strengths:
Public places give the facility to the people by installing wifi technology.
Its expansion method is simple.
Weaknesses:
It can provide proper internet connection in smaller areas like home.
It has huge interference leading to loss of connectivity.

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WIRELESS NETWORKING
References
Bilotti, F., Di Palma, L., Ramaccia, D., & Toscano, A. (2012). Self-filtering low-noise horn
antenna for satellite applications. IEEE Antennas and Wireless Propagation Letters, 11,
354-357.
Cai, Y., Guo, Y. J., & Bird, T. S. (2012). A frequency reconfigurable printed Yagi-Uda dipole
antenna for cognitive radio applications. IEEE Transactions on Antennas and
Propagation, 60(6), 2905-2912.
Coskun, V., Ozdenizci, B., & Ok, K. (2013). A survey on near field communication (NFC)
technology. Wireless personal communications, 71(3), 2259-2294.
Glisic, S. G., & Leppänen, P. A. (2013). Wireless communications: TDMA versus CDMA.
Springer Science & Business Media.
Heydon, R. (2013). Bluetooth low energy: the developer's handbook. Prentice Hall.
Huang, H. (2013). Flexible wireless antenna sensor: A review. IEEE sensors journal, 13(10),
3865-3872.
Liu, H., Gan, Y., Yang, J., Sidhom, S., Wang, Y., Chen, Y., & Ye, F. (2012, August). Push the
limit of WiFi based localization for smartphones. In Proceedings of the 18th annual
international conference on Mobile computing and networking (pp. 305-316). ACM.
Rom, R., & Sidi, M. (2012). Multiple access protocols: performance and analysis. Springer
Science & Business Media.