The OpenAirInterface software is composed of four different parts: openair1: 3GPP LTE Rel-8 PHY layer + PHY RF simulationopenair2: 3GPP LTE Rel-9 RLC/MAC/PDCP and two RRC implementationsopenair3: some networking scripts openairITS: IEEE 802.11p software modem (all layers)targets: scripts to compile and lauch different system targets (simulation, emulation and real-time platforms, user-space tools for these platforms (tbd)) see README files in these subdirectories for more informationsee also https://twiki.eurecom.fr/twiki/bin/view/OpenAirInterface/WebHome.