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Multi-Link Iridium Satellite Data Communication System for Polar Research - page 27 / 29

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University of Kansas

27

Conclusions

Integrated 8-channel system

Works out of the box

Reliable and fully autonomous operation

The newly developed GUI based control software

Reduced the field setup time, increased the ease of operation

Suitable for operation by non-technical users

System performance based on field experiments

Average throughput with 8 channels is 18.6 Kbps, efficiency > 90%

Average round trip time using DAV modes is 1.4 sec, significantly less than 2 sec of Iridium-PSTN configuration

Average uptime with full capacity using DAV mode was 85 %; better than both non-DAV mode and PSTN mode

Percentage system uptime (at least one mode) was ~95% for all the modes

Average time interval between call drops is 60 mins and varies a lot.

In conclusion, the throughput and delay performance of the system using Iridium-Iridium DAV mode is better than other data modes.

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