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All-optical (transparent) wavelength-division multiplexing (WDM), a cost-effective and low power consumption solution for core transport networks, suffers from physical-layer impairments that accumulate along optical paths. In this context, it is important to find dynamic routing schemes with good performance that can consider the optical-layer constraints. In this paper, we propose the alternative...
Transparent optical networks offer a common transport platform for services with different bit-rates, transmission formats and technologies. In such a heterogeneous scenario, it is an inefficient use of network resource to provision end-to-end lightpaths without considering the different optical performance requirements of the different service interfaces. This paper proposes an efficient routing...
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