Callaway writes for a hardware engineer, rather than a software person. He gives a history of various existing wireless networks, where these were not necessarily deployed with an aim for use with sensors. So we see the Aloha network that spans the Hawaiian islands. And how the dispersed nature of the islands led to the development of this network some years ago.



He walks the reader up the protocol stack. For the physical layer to the data link to the network layer. The stack is used as a way to understand the similarities and differences between the various networks. (Think of a periodic table in chemistry, as a good analogy.)



Then, he goes into explanations of topics like antenna design. Very practical for any wireless network.

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