Both are a set of computers linked through a shared wireless channel with an important differ-ence. CS-541 Wireless Sensor Networks University of Crete, Computer Science Department 22 The global industrial wireless sensor network market size is estimated to grow from $401.23 Million in 2013 to $944.92 Million by 2020. Wireless LANs So far, this book has dedicated a lot of attention to (wired) Ethernet LANs. PS3. The access point acts as the base station for the wireless network, aggregating access for multiple wireless stations onto the wired network. Fig 5: Network Interface Cards (NICs) Hub and Switch A hub is a device used to connect a PC to the network. Students may discuss the problem sets with one another, but solutions should be written up separately. Content : Syllabus, Question Banks, Books, Lecture Notes, Important Part A 2 Marks Questions and Important Part B 16 Mark Questions, Previous Years Question Papers Collections. They generally use radio waves for communication between the network nodes. 800 East 96th Street, Indianapolis, Indiana 46240 Michael Miller Wireless Networking A Hertz measures the number of cycles per second. • Lay out the network to cover aisles/areas that minimize handoffs –Communications is not continuous in wireless LAN handoffs • Video: 802.11b is 11 Mbps, or 5.5 Mbps practically –You need 25 * 1.5 Mbps, or 37.5 Mbps, or at least 8 BSS, which is one AP for every 3 vehicles in an area It should not to be sold or republished elsewhere. The function of a hub is to direct information around the network, facilitating communication Notes on the overview of wireless networks Wireless LANs: IEEE 802.11 Antennas and Propagation Signals and Encoding Mobile IP Ad Hoc Networks; Assignments Problem Sets. wireless and wired networks. This preview shows page 1 - 3 out of 41 pages. wireless interconnections and designed content sharing systems. Fixed and wireless: This mode is used for installing networks, e.g., in historical buildings to avoid damage by installing wires, or at trade shows to ensure fast network setup. Although they are vitally important, another style of LAN, wireless LANs (WLAN), fills a particularly important role in providing network access … • IP is a standard that defines the manner in which the network layers of two hosts interact. INTRODUCTION Wireless network is an interconnection of many systems capable of providing service to mobile users within a particular geographic region (country or continent) In wireless network, data are carried by electrical wave (e.g., radio wave) from one node to another. Presented By Mrs. Vasanthi Muniasamy M.Sc., M.Phil 2. One Hertz is one cycle per second. Wireless networks don't use cables for connections, but rather they use radio waves, like cordless phones. IP addresses are 32 bit long, hierarchical addressing scheme. Fixed network transmission hierarchy. The advantage of a wireless network is the mobility and freedom from the restriction of wires or a fixed connection. Section II provides an overview of WLAN security A cipher is an algorithm used to perform encryption. The data is transmitted and received using radio signals. %���� Wireless Networks. It also manages security keys for all field devices; security keys are required to join the wireless network. Anna University EC6802 Wireless Networks Syllabus Notes 2 marks with answer is provided below. Download Data Communication and Networking Notes PDF, syllabus for B Tech, BCA, MCA 2021. Wireless networks need to be connected to backbone networks to extend its service capabilities and geographic coverage. Learn about the various Wireless attacks available to a hacker. wireless network interfaces may form a temporary network without the aid of any established infrastructure or centralized administration. Wireless Networking: Difference between wireless and fixed telephone networks. 4 0 obj • Lay out the network to cover aisles/areas that minimize handoffs –Communications is not continuous in wireless LAN handoffs • Video: 802.11b is 11 Mbps, or 5.5 Mbps practically –You need 25 * 1.5 Mbps, or 37.5 Mbps, or at least 8 BSS, which is one AP for every 3 … If cryptanalysis is successful in decrypting the ciphertext, then that key or cipher. <>/XObject<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 720 540] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> PS1. Mobile and wireless: This is the most interesting case. How Bandwidth Is Achieved from RF Signals: The frequency spectrum used in … Download EC6801 Wireless Communication Lecture Notes, Books, Syllabus Part-A 2 marks with answers EC6801 Wireless Communication Important Part-B 16 marks Questions, PDF Books, Question Bank with answers Key. stream PS2. Fixed network transmission hierarchy. encrypted text, also known as ciphertext. Notes: This is image to elaborate basic visual functionality of wireless networks. here EC6802 notes download link is provided and students can download the EC6802 Syllabus and Lecture Notes and can make use of it. Encryption cracking/KRACK attack, Authentication attacks, MAC spoofing, Management interface exploits, Wireless hijacking, Denial-of-service (DoS). endobj Submission Instructions Notes. endobj �\��ger�r�@j6�9�xQR�$��1j�w$-Er�7h��%J]�. EC6802 Wireless Networks (WN) Syllabus UNIT I WIRELESS LAN Introduction-WLAN technologies: Infrared, UHF narrowband, spread spectrum -IEEE802.11: System architecture, protocol architecture, physical layer, …