Aigaion: RACTI / RU1 Technical Report Series (Web Based)

[RACTI-RU1-2011-93] Adapting the Transmission Reach in Mixed Line Rates WDM Transport Networks, in: 15th Conference on Optical Network Design and Modeling, ONDM 2011, 2011.
Abstract: We consider the problem of planning a mixed line rates (MLR) wavelength division multiplexing (WDM) transport optical network. In such networks, different modulation formats are usually employed to support the transmission at different line rates. Previously proposed planning algorithms, have used a transmission reach limit for each modulation format/line rate, mainly driven by single line rate systems. However, transmission experiments in MLR networks have shown that physical layer interference phenomena are more significant between transmissions that utilize different modulation formats. Thus, the transmission reach of a connection with a specific modulation format/line rate depends also on the other connections that copropagate with it in the network. To plan a MLR WDM network, we present routing and wavelength assignment (RWA) algorithms that take into account the adaptation of the transmission reach of each connection according to the use of the modulation formats/line rates in the network. The proposed algorithms are able to plan the network so as to alleviate interference effects, enabling the establishment of connections of acceptable quality over paths that would otherwise be prohibited
[RACTI-RU1-2011-89] Christodoulopoulos, Konstantinos, Manousakis, Kostas and Varvarigos, Emmanouel, Planning Mixed-Line-Rate WDM Transport Networks, in: International Conference on Transparent Optical Networks, ICTON 2011, 2011.
Abstract: We consider the problem of planning a mixed line rates (MLR) WDM transport optical network. In a MLR network, the interference between different modulation format/line rate connections affect the transmission reach of these connections. We present algorithms to plan a MLR network that take into account the variation of the transmission reach according to the use of the modulation formats/line rates in the network.
[RACTI-RU1-2011-61] Christodoulopoulos, Konstantinos, Manousakis, Kostas and Varvarigos, Emmanouel, Reach Adapting Algorithms for Mixed Line Rate WDM Transport Networks, in: JTL, 2011.
Abstract: We consider the problem of planning a mixed line rate (MLR) wavelength division multiplexing (WDM) transport optical network. In such networks, different modulation formats are usually employed to support transmission at different line rates. Previously proposed planning algorithms have used a transmission reach bound for each modulation format/line rate, mainly driven by single line rate systems. However, transmission experiments in MLR networks have shown that physical layer interference phenomena are more severe among transmissions that utilize different modulation formats. Thus, the transmission reach of a connection with a specific modulation format/line rate depends also on the other connections that co-propagate with it in the network. To plan a MLR WDM network, we present routing and wavelength assignment (RWA) algorithms that adapt the transmission reach of each connection according to the use of the modulation formats/line rates in the network. The proposed algorithms are able to plan the network so as to alleviate cross-rate interference effects, enabling the establishment of connections of acceptable quality over paths that would otherwise be prohibited.