ASIC Implementation of Beamforming and SDMA for WiFi Metropolitan-Area Deployment. - Ruby Tweg; Ruvi Alpert; Hanan Leizerovich; Avi Steiner; Evgeny Levitan; Einat Offir-Arad; Alex Bar Guy; Ben Zickel; Aviv Aviram; Amit Frieman; Mati Wax (GLOBECOM, 2006)