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Raytheon Polar Services Company

Raytheon Polar Services Company. UNITED STATES ANTARCTIC PROGRAM SOUTH POLE WIRELESS LOCAL AREA NETWORK Nicolas S. Powell 15 July 2002 Raytheon Polar Services Company Denver, Colorado. WIRELESS LAN 2001-02 Results. Three Test Locations SPRESO Under Dome Summer Camp

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Raytheon Polar Services Company

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  1. Raytheon Polar Services Company UNITED STATES ANTARCTIC PROGRAM SOUTH POLE WIRELESS LOCAL AREA NETWORK Nicolas S. Powell 15 July 2002 Raytheon Polar Services Company Denver, Colorado

  2. WIRELESS LAN2001-02 Results • Three Test Locations • SPRESO • Under Dome • Summer Camp • Demonstration and proof of concept • Limited funding for equipment purchase • Evaluate effect on RF environment - • IEEE 802.11b spread spectrum signal in 2.4 GHz Part 15 portion of radio spectrum • Very low signal levels observed ~ -65 dBm 500 ft from Omni, -80 to -85 dBm at SPRESO supported 11 Mbps • Low power still supports good throughput

  3. WIRELESS LAN2001-02 Results • SPRESO • Point to Point RF Bldg to SPRESO (~ 6 km) • Equipment Configuration • Parabola antenna on RF Bldg (21 dBi gain) • Yagi antenna at SPRESO (13.5 dBi gain) • Cisco 340 series bridges at each end • Provided site Voice over IP phone & e-mail services • Near 100% connectivity - very reliable • Data rate - 11 Mbps

  4. WIRELESS LAN2001-02 Results • Under Dome • Spotty coverage with number of fade zones • One flat panel, semi-directional antenna and Cisco 350 series Access Point inside Comms Bldg • Metal structure of buildings limited performance, particularly with one antenna located inside

  5. WIRELESS LAN2001-02 Results • Summer Camp • Omni Antenna (12 dBi) on top of El Dorm • Cisco 350 series Access Point in El Dorm • Users report relatively poor performance in Summer Camp and no signal in Hypertats

  6. WIRELESS LAN2002-03 Plans • Four WLAN nodes • SPRESO • Dark Sector • Under Dome • Summer Camp • Supports remote sites with no wireline connectivity during summer • SPRESO support ends with wireline installation completion this summer

  7. WIRELESS LAN - 2002-03SPRESO Architecture

  8. WIRELESS LAN 2002-03Dark Sector Architecture

  9. WIRELESS LAN 2002-03Under the Dome Architecture

  10. WIRELESS LAN 2002-03Summer Camp Architecture

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