Quality of service issues in extending ATM to wireless networks

In this paper we discuss the impact of radio channel characteristics on the overall performance of a broadband wireless ATM network where multiple terminals run delay-sensitive applications. Integrating different approaches presented in recent literature, we propose a simulation model describing the channel behaviour, resource sharing policy, retransmission mechanism, and call/handoff admission control. Extensive measurements prove that wireless ATM can support a wide range of application under different mobility and channel reliability conditions, provided that a fast and sufficiently protected feedback channel is available.