Recent years have seen major advances in cross-layer wireless designs. Despite demonstrating significant throughput gains, hardly any of these technologies have made it into real networks. This paper presents the first step towards enabling the adoption of cross-layer designs in today’s networks
with commodity Wi-Fi cards and actual applications. It presents OpenRF, a cross-layer architecture for managing MIMO signal processing. OpenRF was deployed on a 20-node network, showing significant gain in quality of service for real applications, like remote desktop.