A Distributively Controlled Homogeneous Self-Routing Space Switch Network for Large-Capacity Cross-Connect Systems.

This paper presents a new construction of the distributively controlled homogeneous self-routing space switch network, which is composed of single-kind 2 x 2 unit modules. The feature of the proposed method is that the order is defined among the destination addresses according to their binary representation by the bitwise comparison. The bionic sort is executed based on the order. In the conventional space switch network composed of a single kind of module, the total number of unit modules is of the order of N² at the minimum, where N is the number of I/O ports. In the space switch network proposed in this paper, the total number of unit modules is of the order of (N log³N). The total number of unit modules in the proposed method is equal to that of the conventional method for N>16. When N = 1024, for example, the total number of unit modules in the proposed method is approximately one-sixth that of the conventional method. Another point is that the processing speed within the 2 x 2 unit module is independent of N, as in the conventional method, and is small. This is advantageous in the high-speed operation. [ABSTRACT FROM AUTHOR]