RADIOCHANNEL EMULATION AND MULTIMEDIA COMMUNICATIONS HANDOVER SUPPORT IN AN EXPERIMENTAL WATM NETWORK

This paper describes an ATM network with wireless access for multimedia communications. The network has been specifically designed to serve as a testbed on which evaluate the impact that different handovers techniques have on multimedia traffic. The access network has been completely emulated, where the behaviour of the radio channel is emulated by software and its transmission functions supported by an Ethernet LAN. The paper discusses the design decisions that have been taken, provides an example showing how a handover takes place and provides preliminary results on frame jitter at the mobile terminal and on handover execution times.

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