In this paper, we present SDR-LoRa, a full-fledged SDR implementation of a LoRa transmitter and receiver. First, we reverse-engineer the LoRa physical layer (PHY) functionalities, including the procedures of packet modulation, demodulation, and preamble detection. Based on this analysis, we develop the first Software Defined Radio (SDR) implementation of the LoRa PHY. Furthermore, we integrate LoRa with an Automatic Repeat Request (ARQ) error detection protocol. SDR-LoRa has been validated on (i) the Colosseum wireless channel emulator; and (ii) a real testbed with USRP radios and commercial-off-the-shelf (COTS) devices. Our experimental results demonstrate that the performance of SDR-LoRa is in line with commercial LoRa systems. We pledge to share the entirety of the SDR-LoRa code.
Busacca F., Mangione S., Tinnirello I., Palazzo S., Restuccia F. (2022). SDR-LoRa: Dissecting and Implementing LoRa on Software-Defined Radios to Advance Experimental IoT Research. In WiNTECH '22: Proceedings of the 16th ACM Workshop on Wireless Network Testbeds, Experimental evaluation & CHaracterization (pp. 24-31). Association for Computing Machinery, Inc [10.1145/3556564.3558239].
SDR-LoRa: Dissecting and Implementing LoRa on Software-Defined Radios to Advance Experimental IoT Research
Busacca F.;Mangione S.;Tinnirello I.;
2022-01-01
Abstract
In this paper, we present SDR-LoRa, a full-fledged SDR implementation of a LoRa transmitter and receiver. First, we reverse-engineer the LoRa physical layer (PHY) functionalities, including the procedures of packet modulation, demodulation, and preamble detection. Based on this analysis, we develop the first Software Defined Radio (SDR) implementation of the LoRa PHY. Furthermore, we integrate LoRa with an Automatic Repeat Request (ARQ) error detection protocol. SDR-LoRa has been validated on (i) the Colosseum wireless channel emulator; and (ii) a real testbed with USRP radios and commercial-off-the-shelf (COTS) devices. Our experimental results demonstrate that the performance of SDR-LoRa is in line with commercial LoRa systems. We pledge to share the entirety of the SDR-LoRa code.
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