Thomas Kunz
Systems and Computer Engineering
25
WTP: Wireless Transaction Protocol
nGoals
–different
transaction services, offloads applications
napplication can select reliability, efficiency
–support of
different communication scenarios
nclass 0:
unreliable message transfer
nclass 1:
reliable message transfer without result message
nclass 2:
reliable message transfer with exactly one reliable result message
–supports
peer-to-peer, client/server and multicast applications
–low memory
requirements, suited to simple devices (< 10kbyte )
–efficient
for wireless transmission
nsegmentation/reassembly
nselective retransmission
nheader compression
noptimized connection setup (setup with data transfer)