16
V. Liberatore
Pervasive Computing
Pervasive Computing Stack
*Network stack
nLayers of network software
nMiddleware and above
*User space
nTransport and below
*Operating Systems
*Design choice
nChoose protocol at each layer
nModular design
Application
(the control application, e.g., close-lever)
Middleware
(common to multiple applications, e.g., resource discovery)
Transport
(e.g., TCP, RTP/UDP)
Data Link
(low level communication,
e.g. Ethernet, 802.11, CAN, etc.)
Network
(convergence layer: IP)