Point-to-point transmission of one transmitter and one
receiver operating with the EDCA mode (single AC).
∙ Transmitter always has frames to send, and each frame
has a fixed payload size.
∙ Ideal (error-free) wireless channel conditions.
∙ Binary convolutional coding (BCC) is used.
∙ Space-time block code (STBC) is not used.
∙ Regular guard interval (GI) is used.
∙ Fragmentation is not used. Hence, the compressed form
of the block acknowledgment (BA) bitmap is used.
∙ HT-mixed PPDU format is considered in 802.11n for
backward compatibility.