Thursday, December 5, 2019
Wireless Networking Concepts Management â⬠Myassignmenthelp.Com
Question: Discuss About The Wireless Networking Concepts Management? Answer: Introduction There are various antennas used in todays world of which microstrip antennas is expected to dominate in mere future. The report showcases all the antennas, their strength, weaknesses and also highlights the advanced wireless technologies with their use, strength and weaknesses. Different antennas, their strength, weakness, the antenna which will dominate in future Horn antenna A horn antenna or microwave antenna comprises of the erupting waveguide that looks like a horn and it directs radio wave in between the waveguide and the vacuum. The horn antenna radiates radio waves from the waveguide out in the vacuum, it also accumulates radio waves into the horn antennas waveguide for acceptance (Yin et al., 2013). The radio waves are radiated from the horn antenna tube to the vacuum and horn antenna generally provides a transmission structure where the impedance of the tube is matched with the impedance of the vacuum. The horn antenna is of five types- sectoral, pyramid, corrugated, conical, exponential. Again, a sectoral horn antenna is divided into E-plane horn antenna and H-plane horn antenna. Strength The horn antennas do not have resonant features and they can be operated over a long extent of frequencies and bandwidth The gain of the horn antenna extends up to 25 dBi (Lo Lee, 2013). The horn antenna offers broad bandwidth, low SWR, medium gain. Offers good efficiency Weakness The antenna requires being developed with utmost care (Yin et al., 2013) The antenna lacks quality features. YAGI antenna Previously, YAGI antennas were broadly utilized for TV reception, however as they are developed for only one frequency, they are not suitable for long frequency extent.YAGI antennascomposed of one or more directors, one driven element and one reflector. Strength The YAGI antenna has a gain that enables lower signal strength. The antenna has permissive impedance levels that are minimized (Abhijyoti et al., 2017). The design of the antenna allows the antenna to be escalated very easily on vertical and other beam poles Weakness The YAGI antenna extends for high gain levels For a single YAGI antenna, the gain limits to 20dB Microstrip antenna Microstrip antennas are used worldwide. It is utilized as a part of satellite communication, missile systems, and mobile, GPS because of its light weight and shape, easy implementation. It is definitely better compared to the other antennas and will surely dominate in mere future (Liu et al., 2013). Advantages: It is relatively easy to develop It has a low creation cost. The antennas are efficient radiators (Liu et al., 2013). It has a help for both circular polarization, direct polarization. It is easy to integrate with microwave integrated circuits. Compare and contrast the multiplexing techniques CDMA and FDMA in the area of wireless networking FDMA CDMA Design Divide the frequency band into several separate sub-bands Extent the spectrum by utilizing orthogonal codes Terminals Each and every terminal has its own frequency in a continuous manner At the same time and the same instance all terminals can be made active, in a continuous manner (Zhang et al., 2015) Signal Prepare Signal can be prepared in the frequency domain by the process of filtering Signal can be prepared by code and specialised receivers Benefits Easy, elegant, robust, easy to configure (Ghosh Mandal, 2015) requires planning, lesser frequency, pliable Detriment Rigid, frequency is available in lesser amount The receivers are complicated, for the senders complex power control is required Others FDMA is incorporated with TDMA and SDMA for better outcomes FDMA is incorporated with TDMA or FDMA for best possible results, the design is more complicated Advanced wireless technologies, their use, their strength, their weakness Radio-frequency identification (RFID) tags are utilized to uniquely identify the objects by reading tags attached with the objects. RFID is also utilized to detect animals and human beings (Hutabarat et al., 2016). Strength RFID can read the tags of the specific objects even from two hundred meters. RFID can identify objects, even human beings and animals (Hutabarat et al., 2016) RFID is used at the entry gate to monitor and check people and objects. Weakness RFID systems are relatively expensive compared to the bar code systems RFID is less trustworthy and reliable The technology is quite complex and hard to understand The RFID tags are larger than bar codes (Hutabarat et al., 2016) Use of Bluetooth Bluetooth, a wireless technology is used to transmit data over small distances and is implemented in laptops, mobile phones (Heydon, 2013). Strength Bluetooth is cheap Bluetooth is very easy to install (Heydon, 2013) It can connect to multiple services including laptops and mobile devices and one can share files through it Weakness The devices connected to Bluetooth can be easily hacked. Only two devices can be connected at once (Heydon, 2013) The mobile phones are very much prone to viruses The connection range is short Use of WiFi Direct WiFi enabled devices must be flexible with WiFi Direct. WiFi Direct involves data exchange without the use of net connection (Hutabarat et al., 2016). Strength WiFi Direct does not require the router WiFi Direct can connect multiple devices unlike Bluetooth (Hutabarat et al., 2016) Security can be achieved via WiFi Protected Setup to connect WiFi Direct devices. Weakness WiFi Direct is relatively new technology, it is new to Android and the Android users are finding bugs iPhones do not support WiFi Direct (Hutabarat et al., 2016). Samsung devices have set restrictions on the use of WiFi Direct. Conclusion It can be concluded from the above discourse microstrip antenna is the best among all the antennas explained. The strength and weakness of all the antennas have been explained in details. CDMA and FDMA have been compared and contrast in this report. The advanced wireless technologies, their use, strength, the weakness has also been showcased in this report. References Abhijyoti, G., Subhradeep, C., Sanjay, G. K., Kumar, S. L. L., Sudipta, C., Banani, B. (2017). Slot-Loaded Microstrip Antenna: A Possible Solution for Wide Banding and Attaining Low Cross-Polarization. InRecent Developments in Intelligent Computing, Communication and Devices(pp. 113-119). Springer, Singapore. Ghosh, S., Mandal, P. (2015, April). A new algorithmic approach for the construction of spreading codes for CDMA systems. InCommunications and Signal Processing (ICCSP), 2015 International Conference on(pp. 0190-0194). IEEE. Heydon, R. (2013).Bluetooth low energy: the developer's handbook. Prentice Hall. Hutabarat, D. P., Patria, D., Budijono, S., Saleh, R. (2016, October). Human tracking application in a certain closed area using RFID sensors and IP camera. InInformation Technology, Computer, and Electrical Engineering (ICITACEE), 2016 3rd International Conference on(pp. 11-16). IEEE. Liu, J., Xue, Q., Wong, H., Lai, H. W., Long, Y. (2013). Design and analysis of a low-profile and broadband microstrip monopolar patch antenna.IEEE Transactions on Antennas and Propagation,61(1), 11-18. Lo, Y. T., Lee, S. W. (2013).Antenna Handbook: theory, applications, and design. Springer Science Business Media. Pyattaev, A., Johnsson, K., Andreev, S., Koucheryavy, Y. (2013, April). 3GPP LTE traffic offloading onto WiFi direct. InWireless Communications and Networking Conference Workshops (WCNCW), 2013 IEEE(pp. 135-140). IEEE. Yin, H., Gesbert, D., Filippou, M., Liu, Y. (2013). A coordinated approach to channel estimation in large-scale multiple-antenna systems.IEEE Journal on Selected Areas in Communications,31(2), 264-273. Zhang, J., Yang, L. L., Hanzo, L., Gharavi, H. (2015). Advances in cooperative single-carrier FDMA communications: Beyond LTE-Advanced.IEEE Communications Surveys Tutorials,17(2), 730-756.
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