Methods and systems for frequency multiplexed communication in dense wireless environments

An apparatus configured to perform high-efficiency wireless frequency division multiplexing, comprising:

• a processor;
• a receiver, in connection with the processor and configured to receive, at the apparatus from an access point, a reference signal for reserving a wireless medium including a set of wireless frequencies available for use by both the apparatus and a wireless device, the reference signal including an indication of a power level at which at least one of the apparatus and the wireless device should transmit communications;
• and
• a transmitter, in connection with the processor and configured to, in response to receiving the reference signal, transmit, from the apparatus to the access point, a first communication on a first subset of the set of wireless frequencies, the first communication being transmitted at least partially concurrent with a second communication transmitted on a second subset of the set of wireless frequencies from the wireless device to the access point, and the first and second subsets of the set of wireless frequencies being mutually exclusive subsets of the set of wireless frequencies.