Optical networks: a practical perspective
Optical networks: a practical perspective
Wavelengths Requirement for Permutation Routing in All-Optical Multistage Interconnection Networks
IPDPS '00 Proceedings of the 14th International Symposium on Parallel and Distributed Processing
Parallel Routing Algorithms for Nonblocking Electronic and Photonic Switching Networks
IEEE Transactions on Parallel and Distributed Systems
Graph Theoretical Analysis and Design of Multistage Interconnection Networks
IEEE Transactions on Computers
On a Class of Multistage Interconnection Networks
IEEE Transactions on Computers
Wide-sense nonblocking Banyan-type switching systems based on directional couplers
IEEE Journal on Selected Areas in Communications
| Hi-index | 0.00 |
Optical communications with photonic switching are promising to provide high bandwidth and low error bit. Self-routing strictly nonblocking networks are always favoured to be used as switching networks due to their simple routing mechanisms and nonblocking properties. However, crosstalk problems in photonic switching add a new dimension of nonblocking constraints on optical switching networks. The classical self-routing strictly nonblocking N x N crossbar network has N2 switching elements (SEs) and 2N -- 1 connection diameter, and needs N wavelengths for nonblocking switching. In this paper, we propose a new class of self-routing strictly nonblocking networks by studying the connection capacity of self-routing blocking Banyan-type networks. The new proposed N x N networks have no more than N2 -- N SEs and (log N) connection diameter. Furthermore, they need no more than two wavelengths for nonblocking switching. Compared with existing strictly nonblocking self-routing networks, the presented new networks have lower hardware cost, shorter connection diameter, and much smaller number of required wavelengths. Consequently, they are more feasible for implementation with reduced optical signal attenuation and crosstalk.