Hi, I'm currently building a wireless testbed in an urban environment in Sydney. One thing I want to do on this testbed is to measure the one-way delay of each link.
We are thinking to put a GPS sensor on each node of our testbed for synchronizing the local clock of each node for such a purpose. I'm wondering if anybody on this list can suggest any commercial GPS sensor that can meet the following requirement - waterproof - support linux - support ntp - usb interface (the serial port on our router board has been used for other purpose) - have at least 1ms accuracy (it will be great if it supports PPS) - can be use in Australia I'm aware that some 'bare' GPS device such as Garmin GPS 18 LVC might work for our purpose. But we are trying to find something that does not require additional wiring work given that the time constraint and the large number of nodes we have. I saw something from deluo. But not sure how would it support the 1us accuracy they claim. Does anybody here happen to have any experience with this device? https://www.deluoelectronics.com/customer/product.php?productid=110&cat=1&pa ge=1 Any information will be very much appreciated! Best Regards, Kun-chan Lan Researcher Networks and Pervasive Computing Program National ICT Australia Ltd. Tel: +61 2 8374 5486 Fax: +61 2 8374 5531 Web: www.cse.unsw.edu.au/~klan _______________________________________________ timekeepers mailing list [email protected] https://fortytwo.ch/mailman/cgi-bin/listinfo/timekeepers
