Filterless networks are characterized by an agile cost effective architecture that allows dynamic reconfiguration of the network according to the traffic demand. In this architecture, the switching effort is shifted at egress and ingress nodes by the use of tuneable transceivers and coherent receivers and by the replacement of wavelength selective switching devices by passive optical components at intermediate nodes. Coherent receivers and tuneable transmitters equipped with digital signal processing (DSP) modules have the advantages of being able to compensate for chromatic dispersion (CD), polarization mode dispersio (PMD) and polarization dependent loss (PDL) thus increasing the system’s reach.
The new simulator is able to take into account both the propagation of the physical layer impairments (such as noise funnelling, optical signal to noise ratio degradation, propagation delays) as well as the dynamical behaviour of the control plane for and efficient traffic management, which is aware of these impairments. A custom C++ simulator based on the discrete event simulator OMNeT++ has been developed to study this behaviour in order to facilitate the development of physical layer impairments aware control plane adapted to the filterless architecture. Simulations have been performed using models from current generation, state of the art, tuneable 46 Gb/s DQPSK optical transceivers. In this thesis, we show the internal working of the simulator and results of how different network topologies and varying traffic demands, dynamically impact the quality of transmission as well as the wavelength assignment managed by the control plane.
| Date | 27 Sept 2012 |
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| Original language | French |
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| Awarding Institution | - École de technologie supérieure
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| Supervisor | Christine Tremblay (Supervisor) |
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Cassidy, A. M. (Author),
Tremblay (Supervisor),
27 Sept 2012Student thesis: Master's thesis › Master in Engineering: Electrical Engineering