Results 21 to 30 of about 1,244 (224)

Channel assignment and routing in cooperative and competitive wireless mesh networks [PDF]

open access: yes, 2012
This thesis was submitted for the degree of Docter of Philosophy and awarded by Brunel University.In this thesis, the channel assignment and routing problems have been investigated for both cooperative and competitive Wireless Mesh networks (WMNs).
Shah, Ibrar Ali
core   +7 more sources

Hybrid Routing, Modulation, Spectrum and Core Allocation Based on Mapping Scheme

open access: yesSensors, 2020
With the persistently growing popularity of internet traffic, telecom operators are forced to provide high-capacity, cost-efficient, and performance-adaptive connectivity solutions to fulfill the requirements and increase their returns.
Edson Rodrigues   +3 more
doaj   +1 more source

Towards Optimal and Scalable Solution for Routing and Spectrum Allocation

open access: yesElectronic Notes in Discrete Mathematics, 2018
Abstract The advent of the flexible spectrum grid (flexgrid) technology for the slicing of the optical spectrum has brought new opportunities in terms of efficient utilization of the spectrum, but also new challenges in terms of scalable algorithms for efficiently provisioning the user requests in a flex optical network, i.e., solving the Routing and
Julian Enoch, Brigitte Jaumard
openaire   +1 more source

ENERGY EFFICIENT ROUTING IN COGNITIVE RADIO NETWORKS: CHALLENGES AND EXISTING SOLUTIONS [PDF]

open access: yesICTACT Journal on Communication Technology, 2015
Dynamic Spectrum Allocation using Cognitive Radio (CR) is a promising solution to the spectrum availability problem in wireless networks. Cognitive Radio, however, opens up certain new issues, mainly at the physical, medium access control and routing ...
K. Lakshmana Rao   +2 more
doaj  

Dynamic routing and spectrum allocation in elastic optical networks

open access: yes, 2023
Triggered by emerging services such as high-definition video distribution or social networking, the IP traffic volume has been exponentially increasing to date. Furthermore, the traffic growth rate will not stop here due to the day by day technology advances.
openaire   +4 more sources

Hybrid Optimized Approaches for Routing and Resource Reservation Protocols in Optical Networks

open access: yesIEEE 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

Dynamic adaptive spectrum allocation in flexible grid optical network with multi‐path routing

open access: yesIET Communications, 2021
Fragmentation is one of the major issues in elastic optical network (EON) due to its dynamic characteristics which may possibly degrade the spectrum efficiency.
Ujjwal Ujjwal   +2 more
doaj   +1 more source

Performance of elastic optical network with limited slicers

open access: yesICT 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

Cognitive Power Allocation for Multicarrier Based Ultra Wide Band (UWB) Wireless Systems [PDF]

open access: yes, 2012
This thesis presents a study of Distributed Cognitive Power Allocation for multicarrier based Ultra Wide Band (UWB) wireless systems in a point to point configuration as a way of reducing the coexistence interference for low power emission wireless ...
Jin, Ruofan
core   +5 more sources

Time-Efficient RSA over Large-Scale Multi-Domain EON

open access: yesSensors
The poor timeliness of routing has always been an urgent problem in practical operator networks, especially in situations with large-scale networks and multiple network domains.
Tong Xi, Xuehua Li, Xin Wang
doaj   +1 more source

Home - About - Disclaimer - Privacy