社団法人电子情报通信学会.PDFVIP

社団法人 電子情報通信学会 信学技報 THE INSTITUTE OF ELECTRONICS, TECHNICAL REPORT OF IEICE INFORMATION AND COMMUNICATION ENGINEERS Arbitration-free Time-Division Permutation Switching suitable for All-Optical Implementation Alvaro Cassinelli(1), Makoto Naruse (2), Alain Goulet(1) and Masatoshi Ishikawa(1) 1: University of Tokyo, Dept. Information Physics and Computing, 7-3-1 Hongo Bunkyo-ku, Tokyo 113-0033, Japan. 2: Communications Research Laboratory, 4-2-1 Nukui-kita, Koganei, Tokyo 184-8795, Japan. E-mail: alvaro@k2.t.u-tokyo.ac.jp Abstract. Pursuing high-bandwidth and transparency for optical communications, we propose here a multistage switching fabric whose internal interconnection patterns are periodically reconfigured. Specifically, by cascading guided-wave modules containing each a small set of interleaved, independent addressable plane-to-plane global interconnections, we experimentally demonstrate arbitration-free time-division permutation routing in a transparent multistage architecture suitable for high-bandwidth inter-processor communications in massively parallel machines. Furthermore -and perhaps more interestingly- computer simulations confirms that the addition of small inter-stage buffering nodes (suitable for being implemented as optical fiber delay lines) along with a simple and local packet flow arbitration rule (adapted to the global, periodic interconnection reconfiguration strategy) would lead to fairly good network performance for packet switching applications. Keywords: Guided-wave optical inte