Results 271 to 280 of about 1,499 (298)
Some of the next articles are maybe not open access.
2014 Brazilian Symposium on Computer Networks and Distributed Systems, 2014
Elastic Optical Networks has drawn a lot of attention in the past few years because of its ability to transmit different data rates increasing or decreasing the optical spectrum according to the necessary demand, ensuring a high spectral efficiency. However, establishing and tearing down different connections ends up segmenting the spectrum in several ...
Andre Horota +2 more
openaire +1 more source
Elastic Optical Networks has drawn a lot of attention in the past few years because of its ability to transmit different data rates increasing or decreasing the optical spectrum according to the necessary demand, ensuring a high spectral efficiency. However, establishing and tearing down different connections ends up segmenting the spectrum in several ...
Andre Horota +2 more
openaire +1 more source
Study on dynamic routing and spectrum assignment in bitrate flexible optical networks
Photonic Network Communications, 2012The exponential growth of Internet traffic necessitates high-capacity optical networks and has also highlighted the importance of bandwidth-flexible and multi-granularity transport platforms. Improving both transport capacity and bandwidth flexibility is a significant challenge in optical networks.
Xin Wan +3 more
openaire +1 more source
Routing modulation and spectrum assignment under spectrum conversion in elastic optical networks
2018 3rd International Conference on Microwave and Photonics (ICMAP), 2018The routing modulation and spectrum assignment (RMSA) constraints hinder the performance of elastic optical networks (EONs). To reduce this hindrance, various RMSA heuristics are proposed by utilizing spectrum conversion techniques in a novel way. The key to proposed conversion techniques lies in the selection of a conversion window (CW).
Upama Vyas, Shashi Prakash
openaire +1 more source
Multi-quality of service routing and spectrum assignment in elastic optical networks
2017 IEEE International Conference on Communications (ICC), 2017In this paper, we investigate multi-quality of service (QoS) routing and spectrum assignment in elastic optical networks (EONs) by utilizing network state information in terms of bandwidth usage and holding time of established connections. Toward this aim, two types of traffic, namely big data traffic (BDT) requests, and fixed rate flow requests (FLRs)
Shadi Shahsavari +2 more
openaire +1 more source
Offline Distance-Adaptive Routing and Spectrum Assignment (DA-RSA) in Rings
2015 IEEE Global Communications Conference (GLOBECOM), 2014Distance adaptive spectrum allocation exploits the tradeoff between spectrum width and reach to improve resource utilization by tailoring the modulation format to the level of impairments along the path. We first show that the distance- adaptive routing and spectrum assignment (DA-RSA) problem in mesh networks is a special case of a multiprocessor ...
Sahar Talebi +2 more
openaire +1 more source
Optimization Model and Algorithm for Routing and Spectrum Assignment in Elastic Optical Networks
2018 14th International Conference on Computational Intelligence and Security (CIS), 2018In this paper, the problem of routing and spectrum assignment for static connection requests in elastic optical networks (EONs) is studied. Two different ratios of blocking formations are adopted, and a global constraint optimization model is established to minimize the ratio of blocking in the network.
Jiading Wang +4 more
openaire +1 more source
Branch-and-cut-and-price algorithm for the constrained-routing and spectrum assignment problem
Journal of Combinatorial OptimizationzbMATH Open Web Interface contents unavailable due to conflicting licenses.
Ibrahima Diarrassouba +2 more
openaire +1 more source
Impact of BER in fragmentation-aware routing and spectrum assignment in elastic optical networks
Computer Networks, 2020Devlina Adhikari +2 more
exaly