WiMax Network Projections

1
WiMax Network Projections

• E Katz
• D Labunsky

2
Wireless Network

• Central hub supports multiple users using
  multiple applications, mostly Internet and VoIP
  telephony

3
Assumptions

• Assume that the major differences between WiFi
  and WiMax are
• Software
• Power levels allowed (ERP)
• This implies that most of the hardware required
  for a WiMax network will eventually be priced
  comparably to that required by a WiFi network
  today, with the exception of antennae and some
  physical infrastructure

4
More assumptions

• We will limit our analysis to the last mile
  network, i.e. we assume local availability of
• Power
• A high place to put the antenna
• Some high bandwidth internet access (i.e. fiber
  optic, satellite ground station, WiMax Backhaul,
  etc.)
• Customers wanting internet service will need
  computers. We do not require high performance,
  however, and could easily make do with obsolete
  systems, donated by industrialized nations

5
Access Point

• Assuming WiMax CPE will be priced comparably to
  WiFi equipment available today
• Wireless router/access point
• Linksys WRTP54G-ER Wireless-G 54Mbps Broadband
  Router with Earthlink VoIP Service - 39.99
• Linksys WRT54GL Wireless-G Linux Router - 59.99
• Linksys WRTP54G Wireless-G Vonage VoIP Router -
  59.99
• Wireless Access Point
• Linksys WAP54G Wireless-G Access Point -
  79.99
• Netgear WG602 54Mbps Wireless Access Point -
  79.99
• D-Link DWL-2100AP 108Mbps Wireless Access Point
  w/ SNMP AES - Price 99.99

6
Local Transceiver Antennae

• Assumed to be at about 16 dB Gain
• Assumed to run in the 2.4-2.5 GHz range
• Good transmission, relatively low attenuation
• In the US , there is an amateur band at 900 MHz
  2.4 GHz

7
Andrews Corporation2.4-2.5GHz 17dBi Grid Ant

• 17 dBi (mid)N Male
• Die cast grid antenna is manufactured with
  magnesium alloy, stainless steel and aluminum.
  Weighs 33 less than aluminum antennas with no
  rust.
• Max Wind 140 MPH
• List106.00
• Gold68.90

8
More Antennae
 
 

• 13 dBi (mid)
• N Female Flat panel 60 degree sector antenna.
  Lightweight and rugged. Standard antenna mounts.
• List595.00
• Gold422.45  317.63
• 14.0 dBi (mid)
• N Female Lightweight and rugged Spread
  Spectrum/ISM band parabolic antenna. Mount
  provides fine adjustment of azimuth and
  elevation. Radome is included
• List450.00
• Gold297.00

9
Customer Premise Equipment- PCI Cards

• Notebook Mobile Adapters
• Netgear WN511T RangeMax Next Wireless N PC-Card
  Notebook Adapter - Price 99.99
• Linksys WPC54G 54Mbps Wireless-G PC Notebook
  Adapter - Price 49.99
• Buffalo CB-G54HP PC-Card AirStation High Power
  Wireless Notebook Adapter - Price 49.99
• Wireless PCI Card Adapters
• Linksys WMP54GS Wireless-G PCI Card with
  SpeedBooster - Price 59.99
• D-Link DWL-G510 54Mbps Wireless-G PCI Card -
  19.99
• Netgear WG311 54Mbps Wireless-G PCI Adapter for
  Desktop Computers - Price 39.99

10
Customer Premise Equipment- VoIP Phones

• Direct-to-LAN phones
• Hitachi IP-5000 - Hitachi-Cable Wireless
  IPC-5000 WiFi SIP VoIP Wireless phone 299.95
• Phones With PC Base Stations
• Grandstream GXP-2000 - 78.95
• Grandstream Budgetone GS-101 Black SIP IP Phone
  37.99 
• KeySpan VP-24A Cordless VoIP Phone (Skype) 66.99
  

11
VoIP for Existing Cell phonesOne Example is
TruPhone

• TruPhone
• Software provider
• TruPhone Software makes VoIP calls from any LAN
• Requires a phone compatible with TruPhone
  Software
• Nokia's E-series and N-series phones
• Calling landlines in other countries from their
  mobile (from US)
• UK 3.2c/min
• China 3.2c
• Mexico City 3.6c
• Japan 5.5c
• Calling international mobiles(from US)
• India 18.4c/min
• UK mobiles 23.1c
• China mobiles 3.3c
• Japan mobiles 24.0c

12
A sample system- A WiMax point serves N
computer/phone stations

• Linksys WRT54GL Wireless-G Linux Router (
  59.99)
• Andrews Grid Antenna (106.00)
• D-Link DWL-G510 54Mbps Wireless-G PCI Card -
  (N19.99)
• Grandstream Budgetone GS-101 Black SIP IP Phone
  (N37.99)
• Donated PC (0) 
• Total 165.99 N57.98
• Let N 10 Stations, Total cost 745.79