11.1. Media Access Control Basics
The HomeRF MAC is designed to handle both asynchronous data and TDMA (Time Division Multiple Access) voice packet transmissions. On the other hand, the point coordination function part of IEEE 802.11 MAC is designed to handle timing-sensitive applications through a polling system. HomeRF can be viewed as a specialized version of IEEE 802.11 wireless Ethernet whose MAC is a combination CSMA/CA of IEEE 802.11 and TDMA of DECT and that uses the FHSS modulation method of IEEE 802.11. To guarantee the periodic delivery of voice packets, a superframe is defined for HomeRF. A frequency hop starts every superframe. Original voice packet transmissions are allocated near the end of the superframe, and retransmission of ...
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