Thomas Kunz
Systems and Computer Engineering
205
HIPERLAN 1 Services and Protocols
nCAC service
–definition
of communication services over a shared medium
–specification
of access priorities
–abstraction
of media characteristics
nMAC protocol
–MAC
service, compatible with ISO MAC and ISO MAC bridges
–uses
HIPERLAN CAC
nCAC protocol
–provides a
CAC service, uses the PHY layer, specifies hierarchical access mechanisms for one or several channels
nPhysical protocol
–send and
receive mechanisms, synchronization, FEC, modulation, signal strength