aggregation. Thus, two types of frame aggregations are defined: MAC Service Data Unit
Aggregation (A-MSDU) and MAC Protocol Data Unit Aggregation (A-MPDU). As frame
aggregation is mainly defined to increase the efficiency of the MAC layer, this feature is very
needed to support multimedia traffic such as High Definition TV (HDTV). The multicast
transport is another way to increase the MAC layer efficiency by transmitting the same …