Next Generation Wireless Applications: Creating Mobile Applications in a Web 2.0 and Mobile 2.0 World, 2nd Edition

4.5 MODES OF COMMUNICATION ACROSS THE NETWORK LAYERS

Having examined the network layers, we need to justify this model in terms of its support for our primary modes of interaction: H2H, H2C, H2M and M2M. We should understand how these interaction modes work across, and within, the layers we have identified.

Figure 4.4 shows the location of the primary actors in our network model. Let's now see how each of the layers supports these modes.

4.5.1 Human-to-Human Interaction (H2H)

H2H interaction can take place in one of several ways. Firstly, H2H can take place in the social network. We have already discussed this to remind ourselves of the potential impact of mobile services and devices as their influence extends into the social domain. We mentioned verbally swapping phone numbers as an example, showing friends a picture message or video message, and so on.

Figure 4.10 Despite appearances, text messaging is not a P2P application.

Secondly, H2H interaction can take place using an ad hoc RF network, such as made possible using Bluetooth or WiFi technology. Interactive ‘chatting’ is possible using Bluetooth-enabled personal digital assistants (PDAs), perhaps to allow colluding attendees of a meeting to swap surreptitious notes during the dull moments of the meeting. Note that architecturally, this method of communication is P2P and will therefore require a specific software design approach. ...