Wireless and Wired Networks for Internet Access

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Wireless and Wired Networks for Internet Access
Broadband Wireless and Home Networking

• Blake Dumas
• Wireless Operations, Interlink Computer
  Connection

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Part IBroadband Wireless
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Definitions

• LAN - Local Area Network The computers in your
  home/office
• WAN - Wide Area Network Your Internet connection
  and the people around you
• Downstream throughput
• The capacity of data you can receive
• Upstream throughput
• The capacity of data you can send

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Internet Access Technologies

• Dialup/ISDN
• DSL
• Cable
• Wireless

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Low-Speed Technologies

• Dial-Up
• Requires analog phone line to dial provider
• lt 56 Kbps maximum downstream
• Ties up the phone line
• ISDN
• Requires digital phone line to dial provider
• 64/128 Kbps flavors

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Traditional Broadband

• DSL
• Uses phone lines to deliver high-frequency signal
  separate from phone conversations
• Usually 768 kbps 1.5 Mbps downstream
• Only reaches 2-3 miles from Central Office
• Cable
• Uses cable television infrastructure to deliver
  broadband
• Typical 1.5 2 Mbps downstream
• Bandwidth shared among users

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Wireless Technologies

• No phone lines or cable television required
• Farther distances covered
• Rural areas are able to receive broadband
• Interference can pose a problem

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5
GHz
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Cellular700-900MHZ
802.11b/g2.4-2.48GHZ
802.11a5.7-5.8GHZ
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Interlink Wireless

• Based on Motorola Canopy technology
• Operates at 5.7-5.8 GHz
• Does not require phone lines or cable
• Persistent connection, no waiting to dial
• Stationary customer antennas are aimed at access
  point clusters
• Limited by line-of-sight

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Canopy Equipment
Access Point Cluster
Subscriber Module
Internet
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Technical Aspects

• Uses Motorola protocol rather than 802.11
• 5.7 5.8 GHz frequency range
• Dynamic Time Synchronization Spreading (DTSS) and
  Frequency Shift Keying (FSK)
• Access Points coordinate times each sender can
  send
• Transceiver and antenna integrated into a single
  module
• Power and Ethernet delivered on one cable

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Interlink Wireless Coverage
Hill County
Itasca
Milford
Hillsboro
Peoria
Abbott
Hubbard
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Bandwidth Comparison
Maximum Download Throughput
500 Kbps
1.0
1.5
2 Mbps
56K Dialup
ISDN
Dual ISDN
Res. Wireless
Bus. Wireless
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Canopy Security

• Uses proprietary protocol, unlike 802.11
• Fragments data into 64-byte packets and reorders
• Assembly, order, and disassembly of packets
  remains unpublished
• Motorola chip not available to the public
• 64-bit Data Encryption Standard (DES) encryption

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Part IIHome Networking
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Single Computer
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Wired LAN
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Wireless LAN
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LAN Hardware

• Home Router
• Shares Internet connection among multiple
  computers
• Hides your internal network from the world
• Assigns addresses to computers on the network
• Can serve as a wireless access point and print
  server

Dlink 714
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LAN Hardware (cont.)

• Ethernet Adapters
• 802.11 Wireless Adapters

Netgear FA311
Netgear FA511
Netgear MA401
DLink 520
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Residential Wireless Features

• Persistent always on connection
• 1500 Kbps downstream / 192 Kbps upstream
• 2 email accounts
• 10 Mb web storage space
• Local service and support
• Equipment lease included in cost
• Less than the cost of an extra phone line
  dialup

39.95 / mo.99 one-time installation
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Questions?

• Also, visit our website for more information
  about wireless and other services we provide
• www.hillsboro.net