Tuesday, May 5, 2020

Wireless Microwave Technology Conference -Myassignmenthelp.Com

Question: Discuss About The Wireless Microwave Technology Conference? Answer: Introducation Wireless LAN (WLAN) channels are the new mode for data communication and there are multiple options available for the same. In this section, four of such technology are assessed to identify the system that will be the leader in the deemed field. The considered technologies have been discussed as follows: 802.11b: The deemed technology uses radio signal frequency at 2.4 GHz for the communication purpose (Desai Ibrahim, 2015). It offers larger signal range and is also almost obstruct proof at a lower price. However, it suffers interference from appliances that uses electromagnetic waves and offers low data communication speed. 802.11g: The considered technology also equips radio signal at 2.4 GHz however it offers more bandwidth than 802.11b (Desai Ibrahim, 2015). Extended bandwidth offers high speed than the its predecessors with good range along with compatibility to its predecessors hardware. It is not cost efficient and also suffers from interference. 802.11n: The talked about technology uses multiple antennas and signals (MIMO) for the communication. The speed of up to 300 Mbps is one of the most significant advantage of the same along with a strong signal range and resistance to external interferences (Bejarano, Knightly Park, 2013). However, equipping multiple signal increases the probability of interference with the signals from different WLAN technologies. 802.11ac: This model uses dual band model for supporting dual bandwidth (2.4 5 GHz). It offers enormously high speed of upto 1300 Mbps for 2.4 GHz and 450 Mbps for 5 GHz along with compatibility with the older models of 802.11 series (Bejarano, Knightly Park, 2013). The only con of the deemed system is its higher cost and is not immune to interference in 2.4 GHz. Hence, after the discussion of different WLAN technologies it is recommended to equip 802.11ac. The reason for the recommendation is its high bandwidth multiple supports and compatibility. Comparison: FHSS and DSSS Both FHSS (Frequency Hoping Spread Spectrum) and DSSS (Direct Sequence Spread Spectrum) are wireless data transmission technology however, they offer some contrasting differences which have been mentioned as follows (Alisa, 2013): Speed: The top most speed offered by FHSS is 3 Mbps because of its limited bandwidth while DSSS has larger bandwidth and hence can offer up to 11 Mbps. Connectivity: DSSSs connectivity suffers in the obstructed environment (like noises, multi-path, presence of other wave and others). However, FHSS can withstand such environment, sometimes it can even elude jammers. Power Consumption: DSSS equips devices that consume more power (Linear power amplifier) while FHSS can work on nonlinear power amplifier. Hence, the latter is more power efficient than the former. Cost efficiency: FHSS are cheaper than DSSS. Interference: DSSS can withstand high interference though the same cannot be quoted about the FHSS. Channels: FHSS equips multiple channels for transmission which affects the quality of the transmission on the other hand DSSS uses single channel. Antennas in wireless technology The following section discusses four different types of antennas available in the consumer market before putting forth the recommendation for the deemed organisation. Dish: Dish is the most widely known antenna in the world. It equips reflector to focus the radio frequency in the antenna (Stutzman Thiele, 2012). It offers great bandwidth that are operational over a huge range of frequencies along with high gain and directivity. The demerits that are associated with the considered antenna are its size, cost and maintenance. Grid: These antennas are directional in nature and must be pointed towards the source. The most significant advantage offered by the antenna is the capability to avoid interference as it is source focused (Knox, 2012). They also offer high gain and are compatible with most of the systems because of its size. Though, its limited bandwidth and frequency range are the things that the users need to consider before equipping it. Sector: These antennas are geometrically directed antenna allowing the user to gain a full circular coverage (Lo Li, 2012). The greatest advantage offered by the considered antennas is the extended number of connections it can handle at a single instant. However, the positioning of this antenna along with its non-immunity to interference are few of its cons. Omni: The deemed antenna offers a great coverage distance but reduced angle. The reason for the above mentioned statement is its directional nature (Stutzman Thiele, 2012). Omni antennas offers low gain as they follow beam pattern and hence are not focussed to the source. However, the deemed antenna is suitable for the system where alignment od the direction is of great importance. The discussion above offered an insight of the different types of antenna that can be equipped depending on the requirement. Hence, it is recommended that if the organisation wants an efficient communication within the organisation then they should opt for the sector antenna. However, if their requirement is geographically large then dish antenna is most suitable option for them. References: Alisa, Z. T. (2013). Evaluating the Performance of Wireless Network using OPNET Modeler.International Journal of Computer Applications,62(13). Bejarano, O., Knightly, E. W., Park, M. (2013). IEEE 802.11 ac: from channelization to multi-user MIMO.IEEE Communications Magazine,51(10), 84-90. Desai, P., Ibrahim, B. (2015).U.S. Patent No. 9,059,782. Washington, DC: U.S. Patent and Trademark Office. Knox, M. E. (2012, April). Single antenna full duplex communications using a common carrier. InWireless and microwave technology conference (WAMICON), 2012 IEEE 13th annual(pp. 1-6). IEEE. Lo, T., Li, X. (2012).U.S. Patent No. 8,116,822. Washington, DC: U.S. Patent and Trademark Office. Stutzman, W. L., Thiele, G. A. (2012).Antenna theory and design. John Wiley Sons.

No comments:

Post a Comment

Note: Only a member of this blog may post a comment.