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In this paper, we have investigated the impact of optical regeneration on elastic optical networks that are capable of providing dynamically optical paths with flexible bandwidths. We have evaluated and compared the performance, in terms of the overall blocking probability and the total accommodated traffic volume, of three possible network scenarios with regeneration capability including 1) no regeneration,...
Emerging technologies such as spectrally efficient multicarrier higher order modulation and bandwidth variable wavelength selective switches have led to a change in the optical network architecture from rigid and homogeneous to flexible and heterogeneous in terms of the bit rate, center frequency spacing, modulation format, and optical reach. The elastic optical network (EON) is a network architecture...
We studied dynamic multi-domain elastic optical networks that are capable of regenerating optical paths at domain boundaries. Dynamic Routing, Modulation and Spectrum assignment (RMSA) algorithms have been proposed to exploit the advantages of elastic optical networking and 4R (Re-amplification, Re-shaping, Re-timing and Re-modulation) elastic regeneration to support bandwidth-flexible lightpath services...
To adapt to the network dynamics and support elastic network resource allocation in the future elastic optical networks, optical transmitter with flexibility and re-configurability in modulation formats becomes indispensable, offering network providers flexibility in transport bandwidth. In this paper, we discuss our proposed two flexible high-order quadrature amplitude modulation (QAM) transmitter...
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