A wireless ad hoc multihop network is introduced and protocols for the air
interface are described and evaluated. Ad hoc networks can be realized due
to the ability of stations to route connections according to the current me
shing of the network. The decentrally organized network is able to guarante
e the bandwidth contracted to a connection in a hidden station environment
by means of contention-free data transmission, for both, channel and packet
switched services, based on real channel connections. Channels are establi
shed and used for the duration of a so called train of data packets, releas
ed when the train ends and re-established when the next train arrives. To g
uarantee available capacity of the network for the re establishment of a co
nnection and to guarantee the quality of service needed for a wireless exte
nsion of a fixed ATM network, connection admission control is applied consi
dering the overall interference situation and the current meshing of the st
ations in the network.
For the purpose of realistic and reliable performance analysis a simulation
tool appropriate for the investigation of the proposed network is introduc
ed, and performance results for the proposed protocols are given by means o
f event-driven simulation studies in example scenarios. The simulated proto
cols have been formally specified in SDL, translated to C++, and embedded i
nto a simulation environment.