We demonstrate a 155-Mbps ATM backbone using an optical wireless LAN system is effective for transmission of multi-media data (etc movie). The effective speed of this system maintained at 120Mbps or higher. And we mounted a function on the workstation, in which the network can be altered to a backup line when the optical line speed becomes extremely low. As a result, we can construct high speed ATM backbone using an optical wireless LAN system in long distance (over several kms).
