Assigment_1_V1[1]

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Dec 6, 2023

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Assignment 1 – Wireless Connection Lambton College – Cyber Security & Computer Forensics 2023S-T1 ISN 1903 - Wireless and Mobile Device Security 01 (CSFM Group 1) Professor Saikat Asaduzzaman Group: Cobra Team Renosh Thomas C0896057 - Nijitha Thomas Kakkassery C0895145 - Jewel Tiju Thomas C0896114 - Ivan Torres C0891213 - Jaymeen Manubhai Vagadiya C0894475 - Nazalia Maria Valera Noguera C0891097 - Fabian Valero Duque C0891209 Monday, 26 June 2023
Table of Contents 1. Topic 1 - Types of wireless Antennas ..................................................................... 1 2. Topic 2 – Proposed Solution .................................................................................. 2 3. Topic 3 – Type of Encryption ................................................................................. 6 References ........................................................................................................................ 7
1 1. Topic 1 - Types of wireless Antennas If you need to have a communication setup for your company in Mississauga and its branch office in Hamilton, which one would you be using? Please note, there is a small mountain between these two locations (Hamilton Mountain), so you have to consider that as well. In order to know what the most adequate type of antenna for this scenario is, it’s important to know all the options and their advantages and disadvantages. It can be seen in Table 1 the different types of antennas next to a small description, typical use, and an example. Type Description Example Directional Long distance in point-to- point communication. This type of antenna can be used for the network connection between two buildings separated by a long distance. Semi-Directional Short to medium distance in point-to-point communication. This type of antenna can be used for the Wi-Fi on small university campus. Omni-Directional Point-to-multipoint communication. This type of antenna can be used for the Wi-Fi on houses or office building. Table 1. Comparison types of antennas The primary function of an antenna is to send and receive clear signals from various wireless devices; moreover, antennas are necessary for a wireless network to work effectively. Three main categories of antennae are classified by their mode of operation and used in different circumstances to address specific coverage issues. Directional, Semi-directional, and Omnidirectional are the three classifications. Directional antenna: these antennas are genuinely specialized and have a radiation pattern directed in a particular direction, allowing for more excellent range, better interference rejection,
2 point-to-point link capability, signal focus, and increased noise immunity, making them ideal for various applications requiring precise and selective transmission or reception. Semi-directional antennae: are very flexible and have a vast range of coverage patterns. As a result, they are the type of antenna most frequently used when addressing coverage issues. A kind of semi-directional antenna commonly used for mobile large-scale 802.11 networks due to its flexibility and capacity. The omnidirectional antenna: radiates 360 degrees on the horizontal plane and between 7 and 80 degrees on the vertical plane. Moreover, they are typically used in point-to-multipoint configurations. Increasing the antenna's gain, or power, flattens the radiation pattern to stretch the horizontal coverage while restricting the vertical. Therefore, the higher the antenna's growth, the lower the vertical convergence. For example, installing an access point with a high-gain omnidirectional antenna in the middle of the building's first floor will give you excellent coverage. However, the second floor's signal must be improved because the vertical range has been curtailed. After conducting thorough research on different types of antennas, considering their mode of operation and suitability in various circumstances, we have concluded that the most suitable option for establishing effective communication between the company in Mississauga and its branch office in Hamilton is the directional antenna. This decision is based on the geographical location of both sites, considering the distance between them and the natural obstacle present, such as a small mountain.
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