For example, an apparatus may include a plurality of PHY components configured to communicate over a frequency band above 45 GHz via a plurality of sectorized antennas, the plurality of PHY components including at least a first PHY component to communicate via a first sectorized antenna and a second PRY component to communicate via a second sectorized antenna; a plurality of MAC components including at least a first MAC component and a second MAC component, the first MAC component configured to control channel access via the first sectorized antenna and to process MPDUs to be communicated via the first sectorized antenna, the second MAC component configured to control channel access via the second sectorized antenna and to process MPDUs to be communicated via the second sectorized antenna; and a MAC management component configured to manage communication via the plurality of sectorized antennas.