The Optical Chained-Cubic Tree interconnection network: Topological structure and properties

Interconnection networks with optical communication links outperform others using electronic communication links when the distance is long in terms of speed and power consumption. However, for short distances, electronic network topologies are preferred due to lower material cost requirements. As a result, hybrid network topologies were constructed to combine the benefits of both types of network topologies, such as Optical Transpose Interconnection System (OTIS). This paper presents a new hybrid interconnection network topology, which is constructed using both optical and electronic links, called the Optical Chained-Cubic Tree (OCCT). This new OCCT topology is based on the Chained-Cubic Tree (CCT) interconnection network and is designed to cope with both types of binary trees; full and complete. Also, the topological properties of OCCT in terms of diameter, connectivity, degree, bisection width, and cost are presented and compared with OTIS-Mesh and CCT interconnection networks.

Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideHighlights► The size of the OCCT(h, d, lv) is g × 2d. ► The optical cost of OCCT(h, d, lv) is (((2lv × (2lv − 1))/2) − (2lv − 1)) × 2d. ► The optical cost for size around 4096 in OTIS-Mesh is 7168, while in OCCT is 1344.