Results 21 to 30 of about 39,417 (308)
Valid inequalities and a branch-and-cut algorithm for the routing and spectrum allocation problem [PDF]
Latin-American Algorithms, Graphs and Optimization Symposium, 2021 One of the most promising solutions to deal with huge data traffic demands in large communication networks is given by flexible optical networking, in particular the flexible grid (flexgrid) technology specified in the ITU-T standard G.694.1.
Marcelo Bianchetti, J. Marenco
semanticscholar +1 more source
Using Trust to Establish a Secure Routing Model in Cognitive Radio Network. [PDF]
PLoS ONE, 2015 Specific to the selective forwarding attack on routing in cognitive radio network, this paper proposes a trust-based secure routing model. Through monitoring nodes' forwarding behaviors, trusts of nodes are constructed to identify malicious nodes.
Guanghua Zhang +3 more
doaj +1 more source
Performance of elastic optical network with limited slicers
ICT Express, 2023 A bandwidth blocking occurs due to bandwidth fragmentation in an elastic optical network, which arises from setting up and tearing down of lightpaths. An appropriate routing and spectrum allocation (RSA) approach can reduce this blocking.
Nattapong Kitsuwan, Kaito Akaki
doaj +1 more source
Hybrid Optimized Approaches for Routing and Resource Reservation Protocols in Optical Networks
IEEE Photonics Journal, 2021 We have proposed hybrid approaches to solve dynamic provisioning problems in fixed-grid and elastic optical networks (EON). The proposed approaches use the information from the optimization models, which normally are used to solve static problems, to ...
Akhtar Nawaz Khan +5 more
doaj +1 more source
A survey on OFDM-based elastic core optical networking [PDF]
, 2013 Orthogonal frequency-division multiplexing (OFDM) is a modulation technology that has been widely adopted in many new and emerging broadband wireless and wireline communication systems.
De Leenheer, Marc +3 more
core +2 more sources
High Throughput and Acceptance Ratio Multipath Routing Algorithm in Cognitive Wireless Mesh Network
Future Internet, 2017 The link failure due to the secondary users exiting the licensed channels when primary users reoccupy the licensed channels is very important in cognitive wireless mesh networks (CWMNs).
Zhufang Kuang +3 more
doaj +1 more source
Experimental demonstration of gridless spectrum and time optical switching [PDF]
, 2011 An experimental demonstration of gridless spectrum and time switching is presented. We propose and demonstrate a bit-rate and modulation-format independent optical cross-connect architecture, based on gridless spectrum selective switch, 20-ms 3D-MEMS and
A. Lord +12 more
core +1 more source
An Overview of the Isochronets Architecture for High Speed Networks [PDF]
, 1995 This paper overviews a novel switching architecture for high-speed networks: Isochronets. Isochronets time-divide network bandwidth among routing trees. Traffic moves down a routing tree to the root during its time band. Network functions such as routing
Florissi, Danilo, Yemini, Yechiam
core +2 more sources
Ain Shams Engineering Journal, 2020 The Routing and Spectrum Assignment (RSA) problem is NP-Hard so searching the entire problem space is not applicable. Many decomposition algorithms rely on reducing the search space in the routing space and applying heuristics algorithm in the spectrum ...
Mahmoud Fayez +5 more
doaj +1 more source
International Journal of Distributed Sensor Networks, 2012 Routing and spectrum allocation is an important challenge in cognitive wireless mesh networks. A distributed routing and spectrum allocation algorithm with cooperation (DRSAC-W) in cognitive wireless mesh networks is proposed in this paper.
Zhigang Chen +4 more
doaj +1 more source