Results 21 to 30 of about 193,235 (293)

A Fair Multi-Channel Assignment Algorithm With Practical Implementation in Distributed Cognitive Radio Networks

open access: yesIEEE Access, 2018
Designing an efficient spectrum assignment (SA) mechanism is a key issue for realizing dynamic spectrum access in cognitive radio network. In multi-channel selection based SA schemes, secondary users (SUs) are able to utilize multiple channels ...
Zong-Heng Wei, Bin-Jie Hu
doaj   +1 more source

ATARI: A Graph Convolutional Neural Network Approach for Performance Prediction in Next-Generation WLANs

open access: yesSensors, 2021
IEEE 802.11 (Wi-Fi) is one of the technologies that provides high performance with a high density of connected devices to support emerging demanding services, such as virtual and augmented reality.
Paola Soto   +9 more
doaj   +1 more source

Comparative performance analysis of subcarrier assignment for real‐time video traffic

open access: yesIET Networks, 2015
The ability to transmit video and carry real‐time multimedia applications such as video‐streaming, video conferencing and mobile TV are considered important to support the viability and survivability of next generation mobile wireless networks. High peak
J. Benita, R. Jayaparvathy
doaj   +1 more source

Experimental Investigation of Gain Offset Behavior of Feedforward-Controlled WDM AGC EDFA Under Various Dynamic Wavelength Allocations

open access: yesIEEE Photonics Journal, 2016
Realizing dynamics in the optical layer is becoming more important for efficient optical communication networks such as protection switching in the optical domain or reconfiguring the optical layer to meet traffic fluctuations.
Kiyo Ishii, Junya Kurumida, Shu Namiki
doaj   +1 more source

Local Multicoloring Algorithms: Computing a Nearly-Optimal TDMA Schedule in Constant Time [PDF]

open access: yes, 2009
The described multicoloring problem has direct applications in the context of wireless ad hoc and sensor networks. In order to coordinate the access to the shared wireless medium, the nodes of such a network need to employ some medium access control (MAC)
Kuhn, Fabian
core   +4 more sources

Dynamic Subchannel Assignment-Based Cross-Layer MAC and Network Protocol for Multihop Ad Hoc Networks

open access: yesJournal of Computer Networks and Communications, 2013
The paper presents a dynamic subchannel assignment algorithm based on orthogonal frequency division multiple access technology operating in the time division duplexing and a new cross-layer design based on a proposed routing protocol jointed with the MAC
Khanh Nguyen Quang   +2 more
doaj   +1 more source

QoS driven distributed multi-channel scheduling MAC protocol for multihop WSNs [PDF]

open access: yes, 2014
Multi-Channel Dynamic Scheduling has been centric stage of research in WSNs in recent years. In this paper, we propose a Distributed Multi-Channel Scheduling MAC communication protocol (DMS-MAC) to improve the network performance of WSNs, which selects ...
Iyengar, S.S.   +5 more
core   +1 more source

Broadcast Strategies with Probabilistic Delivery Guarantee in Multi-Channel Multi-Interface Wireless Mesh Networks [PDF]

open access: yes, 2011
Multi-channel multi-interface Wireless Mesh Networks permit to spread the load across orthogonal channels to improve network capacity. Although broadcast is vital for many layer-3 protocols, proposals for taking advantage of multiple channels mostly ...
De Oliveira, Carina Teixeira   +2 more
core   +5 more sources

Static virtual channel allocation in oblivious routing [PDF]

open access: yes, 2009
Most virtual channel routers have multiple virtual channels to mitigate the effects of head-of-line blocking. When there are more flows than virtual channels at a link, packets or flows must compete for channels, either in a dynamic way at each link or ...
Cho, Myong Hyon   +5 more
core   +1 more source

Distributed Channel Access, Relay Selection and Time Assignment for QoE-Aware Relay Networks

open access: yesIEEE Access, 2018
In this paper, we tackle the comprehensive problem jointing channel access, relay selection, and available time assignment for distributed relay networks which includes multiple source nodes and relay nodes.
Jianjun Jing   +6 more
doaj   +1 more source

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