Slide 1

WIRELESS NETWORKING Ramiah Qasem, Jahmia Algahmie, Andrew Speice Slide 2 Overview of Wireless Networking What is Wireless Networking? What is Wireless Networking? - What? - Where? - Types of Wireless Networks - Specific Technologies of Wireless Networks How is Wireless Networking used? How is Wireless Networking used? - Setting Up a Wireless Network - Creating a Secure Network Educational Applications Educational Applications - Uses in Small, Large, and Special Schools - Pros & Cons of Wireless Networking Slide 3 What is it? Slide 4 WHAT ARE WIRELESS NETWORKS? Imagine accessing the internet anywhere, anytime, without using wires. discovery in the late 1800s of wireless technology made this possible. Imagine accessing the internet anywhere, anytime, without using wires. Guglielmo Marconis discovery in the late 1800s of wireless technology made this possible.Guglielmo Marconi Wireless Networks are telephone or computer networks that use radio as their carrier or physical layer (Wikipedia, 2006). Wireless Networks are telephone or computer networks that use radio as their carrier or physical layer (Wikipedia, 2006). Slide 5 Wireless Networks, Where? You have probably walked in the middle of a wireless network before, without even knowing it. They are found in airports c coffee shops Wayne State College of Education Building I In areas, such as, Wixom Village Center Area in Oakland County and many more areas. Slide 6 Types of Wireless Networks Wireless Local Area Network (WLAN): Radio instead of wires is used to transmit information between computers. Wireless Local Area Network (WLAN): Radio instead of wires is used to transmit information between computers. Global System for Mobile Communications (GSM): Used for cell phones Global System for Mobile Communications (GSM): Used for cell phones Wireless Fidelity (Wi-Fi). Referred to as 802.11 networking. Used to connect computers at home. Wireless Fidelity (Wi-Fi). Referred to as 802.11 networking. Used to connect computers at home. Slide 7 Specific Technologies for WLAN The Institute of Electrical and Electronics Engineers (IEEE) sets standards for a range of technological protocols, and it uses a numbering system to classify these standards. Three types branch out of the standard 802.11 networking. The Institute of Electrical and Electronics Engineers (IEEE) sets standards for a range of technological protocols, and it uses a numbering system to classify these standards. Three types branch out of the standard 802.11 networking. 802.11b 802.11b - Faster than standard speed 802.11. 802.11a 802.11a - Fastest version available. Primarily used by businesses. Discovered after the 802.11b 802.11g 802.11g - Extends the maximum data rate of WLAN devices. - Can transmit data over short distances Slide 8 Wi-Fi NETWORKING A computer's wireless adapter translates data into a radio signal and transmits it using an antenna. A computer's wireless adapter translates data into a radio signal and transmits it using an antenna. A wireless router receives the signal and decodes it. It sends the information to the Internet using a physical, wired Ethernet connection (Brain, 2006). A wireless router receives the signal and decodes it. It sends the information to the Internet using a physical, wired Ethernet connection (Brain, 2006).Ethernet One wireless router can allow multiple devices to connect to the Internet. Slide 9 How is it used? Slide 10 Setting Up a Wireless Network 1. Choose your wireless equipment Choose equipment that supports the three different wireless technologies: 802.11a 802.11a 802.11b 802.11b 802.11g 802.11g Equipment needed: wireless router, broadband connection, & a computer. 2. Connect your wireless router Connect the router to Broadband modem Computer will pick up router signal (as long as your computer has wireless capabilities or has a wireless network adapter) and wirelessly connect to the router. Router will communicate with modem to connect with internet. Slide 11 Setting Up a Wireless Network (contd) 3. Configure your wireless router by configuring these three things : Your router administrative password, which controls your wireless network Your wireless network name, known as the Service Set Identification Digital number (SSID). Wireless encryption (WEP) or Wi-Fi Protected Access (WPA), which help protect your wireless network by scrambling the data across the connection. 4. Connect your computer View available wireless networks Here, you may see more than one name, this means that the computer is picking up signals within a close range. Choose your SSID and you will be asked to enter the encryption key you created in step 3. Later, if you want, you may add more computers to create a network. Slide 12 Creating a Safe Network Secure Wireless Networking Allows only authorized people to gain access to information on your computer, such as, files and folders. Unsecured Wireless Networking Allows other people to gain unauthorized access to information on your computer, such as, files and folders. Slide 13 Five Steps To Help You Create A Secure Wireless Network Step 1: Know your network Step 1: Know your network Realize that a wireless network uses radio waves to transfer data They are easy to use and knowing your network will help keep security risks at bay Step 2: Create a Service Set Identification Digital number (SSID) Step 2: Create a Service Set Identification Digital number (SSID) This SSID will be used to access the wireless network. You can have your SSID visible to others in range of the wireless network or you can make it private by disabling the SSID broadcast. This can be found in the router configuration Step 3: Set up Media Access Control (MAC) filtering. Step 3: Set up Media Access Control (MAC) filtering. MAC addresses are assigned uniquely to a Wireless Network Adapter Controls who may or may not have access to your network Slide 14 Steps to Securing a Wireless Network (contd) Step 4: Encrypt, encrypt, encrypt Step 4: Encrypt, encrypt, encrypt Blocks intruders from entering your network by inserting a protection key that is required in order to access the network Two types of encryption protocols are: Two types of encryption protocols are: Wired Equivalency Privacy (WEP) Wi-Fi Protected Access (WPA) Step 5: Fill in the gaps with software Step 5: Fill in the gaps with software adding software that will help you monitor your network and identify when there has been an attempted intrusion. A Popular Example of software is McAfee Wireless Home Network Slide 15 Educational Applications Slide 16 Wireless Networking in Education Wireless networking works well in all types of schools and can bring major educational benefits. Wireless networking works well in all types of schools and can bring major educational benefits. Slide 17 A Wireless Network Can Help Teachers To: Work more efficiently Work more efficiently Support students learning through their use of Instructional Technology Support students learning through their use of Instructional Technology Work wherever and whenever suits them best Work wherever and whenever suits them best Flexibility of connecting to the internet anywhere is a enormous advantage Flexibility of connecting to the internet anywhere is a enormous advantage Slide 18 For Larger Schools A wireless network combined with a wired network allows for network coverage in unusual areas such as cafeterias, hallways, corridors, etc. A wireless network combined with a wired network allows for network coverage in unusual areas such as cafeterias, hallways, corridors, etc. Slide 19 In Special Schools Instructional technology being offered anywhere in a school can be very beneficial to special needs students Instructional technology being offered anywhere in a school can be very beneficial to special needs students Gives the teacher flexibility as to where accommodations may be made Allows access to curricular goals anywhere Slide 20 In Schools Short Of Space Mobile technology can be easily stored away in a storage cabinet Mobile technology can be easily stored away in a storage cabinet Allows for easy storage and retrieval of technologies Allows for easy storage and retrieval of technologies Slide 21 In All Schools Wireless networking can include portable computers being used wherever they are needed Wireless networking can include portable computers being used wherever they are needed even outdoors fixed computers in remote areas of the school Slide 22 Combined with Mobile Computers Wireless networks when combined with portable computers allows access to classes throughout the school Wireless networks when combined with portable computers allows access to classes throughout the school Amount of Instructional Technology use surge ahead dramatically Amount of Instructional Technology use surge ahead dramatically Quality of Instructional Technology use surge ahead dramatically Quality of Instructional Technology use surge ahead dramatically Slide 23 Pros & Cons of Wireless Networking vs. Wired Networking Pros of Wireless Networking (Wikipedia, 2006) Pros of Wireless Networking (Wikipedia, 2006) No messy cable wires Offers more mobility Cheaper and faster than ever Uses of security software will help with security issues. Cons of Wireless Networking (Wikipedia, 2006) Cons of Wireless Networking (Wikipedia, 2006) Because there is no wired connection, there sometimes may be an interference that might block radio signals passing through. Therefore, a loss of internet connection. May allow access to unauthorized access since the signal is being broadcasted. Often security problems Slide 24 Reference List A Home Network Advisor A Home Network Advisor http://compnetworking.about.com/od/homenetworking/a/homeadvisorm http://compnetworking.about.com/od/homenetworking/a/homeadvisorm Setting Up a Wireless Network Setting Up a Wireless Network http://www.microsoft.com/athome/moredone/wirelesssetup.mspx http://www.microsoft.com/athome/moredone/wirelesssetup.mspx www.howstuffworks.com/wireless-network.htm www.howstuffworks.com/wireless-network.htm Securing a Wireless Network Securing a Wireless Network - http://www.practicallynetworked.com/support/wireless_secure.htm - http://www.practicallynetworked.com/support/wireless_secure.htm http://www.practicallynetworked.com/support/wireless_secure.htm Defining a Wireless Network Defining a Wireless Network - http://en.wikipedia.org/wiki/wireless_network - http://en.wikipedia.org/wiki/wireless_network http://en.wikipedia.org/wiki/wireless_network - http://www.becta.org.uk/pagedocuments/leas/wire.pdf - http://www.becta.org.uk/pagedocuments/leas/wire.pdf Going Wireless in Wixom Village Center Area Going Wireless in Wixom Village Center Area http://www.ci.wixom.mi.us/LocalGov/Recreation/PDF%20Files/CrossroadsOctDec 2006.pdf http://www.ci.wixom.mi.us/LocalGov/Recreation/PDF%20Files/CrossroadsOctDec 2006.pdf Slide 25 The Future of Wireless Networking Thank You