Asynchronous Transfer Mode(ATM) switching systems take an important role as a core component of future Broadband Integrated Services Digital Networks(BISDN) that can accommodate voice, data, image and video. In this study, we propose a novel large-scale ATM switching system architecture which consists of an interconnection network and output switch module. The proposed interconnection network is a modified delta network that has modular expandability and self-routing capability. The output switch module can consist of either output-buffered or shared-buffer switches, if they have good performances in terms of cell loss probability, delay and throughput. The analytical and simulation study shows that the proposed ATM switch architecture can yield high throughput, arbitrarily low cell loss probability and reasonably low delay by only adjusting the buffer size of interconnection module unit. We expect that even a large scale 1024×1024 ATM switch can be implemented by utilizing the proposed architecture.
