A station (STA) may receive a wireless signal including a preamble of a packet. An energy level of the signal received may exceed a clear channel assessment (CCA) threshold. The STA may issue a primitive to stop reception of the packet. Further, the STA may return to a receive state based on the primitive. Additionally, the STA may determine, using a carrier sense multiple access (CSMA) protocol, to ignore a payload portion of the packet based on information contained in the preamble and adjust the CCA threshold to account for the payload portion of the packet. The STA may then access a wireless medium using the CSMA protocol during the payload portion of the packet using the adjusted CCA threshold. In a further example, the CCA threshold may be a received signal strength indicator (RSSI) level or a received channel power indicator (RCPI) level.