Data Analysis on Mobile Ad-Hoc Networks with Commercial Pre- WiMAX, EVDO and Wi-Fi Products
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1 Data Analysis on Mobile Ad-Hoc Networks with Commercial Pre- WiMAX, EVDO and Wi-Fi Products Architecture and Research Competency Centre CTO Bing Cheung, Emerging Technologies Engineer Tel: October 2008
2 Agenda Introduction Technology and Equipment Descriptions Topology and Configurations Comparison of Wi-Fi, Pre-WiMAX and EVDO Multiple-Unit Testing Secure Multiple VPN/PKI/SRA Connections Observations Conclusions
3 Introduction Wireless Ad-Hoc Mesh Networks Testing taken place in an office environment on fifth floor, at the Place du Portage Phase III Building in the National Capital Region Testing period: August November, 2007 Products available commercially for business applications
4 Technology and Equipment Descriptions WiMAX EVDO Wi-Fi Worldwide Interoperability for Microwave Access (WiMAX) IEEE802.16, IEEE802.16e Rogers Thin sliced modem unit Advertisement performance: Download: 1.5 Mbps Upload: 256 kbps Modem unit - $100 a piece Subscription fee - $50 per month with a max. usage of 30 GB Evolution Data Only (EVDO- Rev A) CDMA Technology Telus Sierra 595U USB Advertisement performance: Download: 800 kbps Upload: 300 kbps USB unit - $50 a piece Subscription fee - $70 per month with a max. usage of 1 GB Wireless Fidelity; Wireless Local Area Networks (WLANs) IEEE802.11b/a/g Linksys Model #WRT55AG Advertisement performance: g: 11 Mbps at 2.4 GHz a: 11 Mbps at 5 GHz b: 2Mbps at 2.4 GHz Wireless router - $30 a piece
5 Topology and Configurations Wireless Ad-Hoc Mesh Networks Figure 1: Configuration of WiMAX Ad-Hoc Network Figure 2: Configuration of EVDO Ad-Hoc Network
6 Comparisons of WiFi, Pre-WiMAX and EVDO Wi-Fi provides the highest data rate Pre-WiMAX and EVDO can be setup very quickly and low-cost at both the indoor and outdoor environment without any underlying Internet cables nor power supply Pre-WiMAX and EVDO offer a much higher download rate than upload rate as it is set and designed by the Telecom providers. Data rate (kbps) WiFi, Pre-WiMAX and EVDO Data Rate Comparison Download Speed Indoor WiFi WiMAX and 1-unit Ad-Hoc EVDO and 1-unit Ad-Hoc Upload Speed
7 Multiple-Unit Testing Internet Voice Quality over these 4 laptops over Skype is acceptable Internet Radio Voice Quality performs well Overall Voice Quality is worse than cellular Simultaneously video-streaming webcasts from Radio-Canada News Website perform well in these 4 laptops. WiMAX and EVDO Ad-Hoc Networks Data rate (kbps) # of laptops connected WiMAX Download speed WiMAX Upload speed EVDO Download speed EVDO Upload speed
8 Secure Multiple VPN/PKI/SRA Connections EVDO USB modem cannot provide secure multiple VPN/PKI/SRA connections because it requires to connect to a laptop which cannot provide multiple VPN-Pass-Through. Simultaneously video streamlining performs well Internet Voice Quality is poorer over Skype
9 Observations Supporting more than one laptop connection requires a Wi-Fi Wireless Router, not an Access Point. Multiple VPN Pass-Through needs to be enabled on secure multiple VPN/PKISRA connections. The power inverter, which can be purchased from the Canadian Tire Store, is a good source to provide power supply to setup Wireless Ad-Hoc Networks anywhere. EVDO USB modem, unlike the WiMAX modem, does not require an external AC supply.
10 Conclusions Wi-Fi provides a higher data rate than Pre-WiMAX or EVDO Pre-WiMAX and EVDO Wireless Mesh Networks can be setup very quickly and easily with low-cost without overlaid Internet cables nor power supply in both the indoor or outdoor environment The Wireless Mesh Networks have been setup successfully with 4-laptop units with simultaneously video streaming Multiple secure VPN/PKI/SRA connections are possible Further research can be developed and compared with other high bandwidth commercial products, such as HSDPA, EDGE and UMTS.
11 Thank You Any question? Bing Cheung Emerging Technologies Engineer Architecture and Research Competency Centre Chief Technology Office (CTO) Information Technology and Service Branch (ITSB) Public Works and Government Services Canada (PWGSC) PdP III, 5A2 11 Laurier Street Gatineau QC K1A 0S5 Canada Tel: Fax:
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