  We present Wi-Lo, which allows to convert an ordinary 802.11 (WiFi) access
point into an internet of things (IoT) gateway supporting the low-power wide
area network (LPWAN) technology LoRa in the downlink. Our Wi-Lo system only
requires a software update and no additional hardware. It uses signal emulation
technique based on complementary code keying modulation from 802.11b in order
to emulate a downlink LoRa (long range) transmission. The Wi-Lo gateway can be
used by a normal WiFi-enabled smartphone to send packets to LoRa compliant IoT
devices like smart sensors. We implemented a prototype using commodity WiFi
hardware. Experimental results show that Wi-Lo enables a normal WiFi node to
communication to LoRa devices even over long distances, which is comparable to
the configurations using pure LoRa transmitter and receivers.
