Truong, Thu-Huong and Baldi, Mario and Ofek, Yoram (2007) Efficient Scheduling for Heterogeneous Fractional Lambda Switching Networks. UNSPECIFIED. (Unpublished)
Efficient scheduling for heterogeneous fractional lambda switching (FLS) networks is required but challenging. A heterogeneous network implies bandwidth mismatch between links of varied bit rates. Moreover, when non-immediate forwarding (NIF) is used in FLS, it increases the scheduling complexity exponentially, while decreasing the blocking probability. Thus, NIF scheduling presents a serious challenge for an algorithm to be used in a large heterogeneous FLS network. In this paper, an efficient scheduling algorithm that is combined with a flexible forwarding scheme is presented. The algorithm provides a full scheduling solution for an end-to-end request in heterogeneous FλS networks. Furthermore, the algorithm has linear complexity in single-channel networks and quadratic complexity in multiple-channel WDM networks.
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