Design Overview for CR MAC/PHY

The high level design for MAC share some similar design structures with routing. Since the multi-channel design as shown in Figure 2 (a) for routing is transparent to the MAC and PHY layer, to provide MAC and PHY algorithm a multi-channel environment, multi-channel is needed at each radio. The design includes single radio multi-channel and multi-radio multi-channel, which are visible to both MAC and PHY layers. In both designs, multiple channel objects are created through the TCL library. Nodes can be switched to different channel objects during the simulation process.

A. Single radio multi-channel

Figure 3 shows the high level software design for single radio multi-channel support for MAC and PHY layer. The components with blue color are modified in CRCN to support the functionality required.

B. Multi-radio, Multi-channel

Figure 4 shows the high level software design for multi-radio multi-channel support for MAC and PHY layer. The components with blue color are modified in CRCN to support the functionality required. This design combines the design shown in Figure 2 (a) and Figure 3.

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