Information Technology Reference
In-Depth Information
Fig. 1.
AODV Route Discovery
2.3
Cross Layer Design
By using cross layer design technique, each layer is allowed to exchange the data
across layer [5]. Cross layer can solve some problems and improve the performance
of WSNs. Cross layer allows a protocol to share and access the information from the
different layer. Information exchange is not required in the adjacent layers for
example; MAC layer can exchange information between Transport layer. The
communication layer interfacing is shown in Fig. 2 Figure 2A shows a new interface
call “Upward” information Flow by creating a tunnel forwarding the information from
lower layer to the upper layer. In contrast, the “Downward” information flow as show
in Figure 2B is created to allow the lower layer to gain the data from the upper layer.
For example the routing layer can set some parameter in mac layer for data
transmission. Figure 2C shows the Back and Forth information flow link between two
Fig. 2.
Cross Layer design
