1 / 12

Wireless Home Networks

Wireless Home Networks. Networks of Yesterday, Today & Tomorrow. Table of Contents. Home Wireless Networks of Yesterday pg 3 Home Wireless Networks of Today pgs 4-5 Home Wireless Networks of Tomorrow pgs 6-7 The 802.11 Technology Series pgs 8-9

ezekiel-acevedo
Download Presentation

Wireless Home Networks

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Wireless Home Networks Networks of Yesterday, Today & Tomorrow

  2. Table of Contents • Home Wireless Networks of Yesterday pg 3 • Home Wireless Networks of Today pgs 4-5 • Home Wireless Networks of Tomorrow pgs 6-7 • The 802.11 Technology Series pgs 8-9 • Pros & Cons pg 10 • Footnotes pg 11 • Bibliography pg 12

  3. 3. Home Wireless Networks of Yesterday • HomeRF was the first practical wireless home-networking technology.1 • It was launched in mid 2000, and provided a maximum transfer rate of 1.6 Mbps.1 • 802.11 was also available at this time, but less popular because it was more expensive.1 • 802.11 existed as two versions, and their transfer speeds ranged from 1 – 2 Mbps.1

  4. 4. Home Wireless Networks of Today • As bandwith increases, the ability to share information with other home appliances becomes much easier.2 • Phillips and Sony have developed ways to stream high-definition video wirelessly, using 802.11a technology.3 • Gaming consoles, for example PS2, are capable of managing music, video distribution, and instant communication.3

  5. 5. Wireless Networks of Today Continued • MSN TV 2 Internet & Media Player allows you to use your home network to display photos that reside on your PC on your TV.4 • MSN TV also allows you to watch Windows Media-compatible video clips, movie trailers, sports highlights and other online media that is stored on your PC on your TV.4 • Security wise, 802.11i has improved security, and it focuses on authentication, encryption, and message integrity.3

  6. 6. Wireless Networks of Tomorrow • The players involved with 802.11n are talking about quoted data rates of up to 250 Mbps and actual data rates of up to 175 Mbps.6 • Then there's a prototype connectivity technology, backed by Intel and others, that is a subset of ultra wideband: wireless USB (WUSB). The expected data rate of wireless USB is 480 Mbps at a range of 2 meters and 110 Mbps at 10 meters. These very high data rates at close range would enable you to do things like point a camcorder at a PC and stream video wirelessly to the computer.6

  7. 7. Networks of Tomorrow Continued • In home security, futurists see devices such as smart, Web-connected cameras and robots playing a role.6 • Sony, and others are at work developing next-generation IP cameras that can help homeowners keep an eye on their houses from wherever they are. You might find numerous wirelessly connected cameras inside and outside a home, each with its own IP address, motion sensor, remote tilt and swivel controls, and Web server features.6 • Robotic vacuums, digital washing machines that can control water flow for different kinds of loads, and refrigerators with built-in LCDs already exist, but haven't found their niche quite yet.6

  8. 8. The 802.11 Technology Series • The 802.11 technology will be what wireless networks are based on. The 802.11 various flavors are listed below.3 • 802.11a has a 54Mbits/sec link speed, and can deliver a maximum usable throughput of about 25Mbits/sec. It uses a 5GHz carrier frequency, which helps it steer clear of microwave ovens and cordless telephones.5 • 802.11b has a maximum link speed of 11Mbits/sec, and a peak usable throughput of around 5Mbits/sec.5 • 802.11g offers a maximum link speed of 54Mbits/sec, and maximum usable throughput of around 20Mbits/sec, four times better than 802.11b, and not much slower than 802.11a.5

  9. 9. 802.11 Series Continued • 802.11e adds Quality of Service (QoS) functionality that's nearly identical to that found in 802.1d standard used in the wired Ethernet world. It is especially key to allowing 802.11 to stream video, audio and voice in real time.5 • 802.11i improves the notoriously poor security for wireless networks, with improvements in the area of authentication, encryption, and message integrity. 802.11i includes AES (Advanced Encryption Standard), which is a much stronger encryption than what's found on past-generation 802.11 networks.5

  10. Pros Frees you from network cables. Less analog, less time required to carry out specific tasks. Cons More expensive than wired, phone-line, or power-line alternatives. Difficulty with bandwith. Security 10. Pros & Cons of Wireless Networking

  11. 11. Footnotes • Bruce Brown,“Wireless Home-and Small-Office Networking” • Dave Salvator,“Building a Wireless Home Media Network Server” • Craig Ellison, “Networking: What’s Next” • “More About Getting Networked” • Dave Salvator, “Picking the Right Topology” • Sebastian Rupley, “Your Future Home” • Bruce Brown, “Proxim Symphony- HRF Wireless Debuts”

  12. 12. Bibliography • Brown, Bruce: “Proxim Symphony- HRF Wireless Debuts.” • Brown, Bruce: “Wireless Home- and Small-Office Networking.” • Ellison, Craig: “Networking: What’s Next.” • Rupley, Sebastian: “Your Future Home” • Salvator, Dave: “Building a Wireless Home Media Network Server” • Salvator, Dave: “Picking the Right Topology” • MSNTV.com: “More About Getting Networked” • Doe, Tahriq CompUSA 770-640-6990

More Related