Contactless wireless sensing without attaching a device to the target has achieved promising progress in recent years. However, one severe limitation is small range. This paper presents Widesee realize wide-area with only transceiver pair. utilizes LoRa signal achieve larger range of and further incorporates drone’s mobility broaden area. solutions across software hardware overcome two aspects ...

A disaster may not necessarily demolish the telecommunications infrastructure, but instead it might affect national grid and cause blackouts, consequently disrupting network operation unless there is an alternative power source(s). In disaster-resilient networks, fiber cut, datacenter destruction, node isolation have been studied before with different scenarios, outage impact has investigated b...