Results 21 to 30 of about 22,009 (301)

Adaptive Antenna Array Assisted Dynamic Channel Allocation Techniques [PDF]

, 2001
—The performance of base station adaptive antenna arrays (AAAs) is investigated in conjunction with fixed channel allocation (FCA) and dynamic channel allocation (DCA) schemes.
Blogh, J.S., P.J. Cherriman, L. Hanzo, J.S. Blogh, Cherriman, P.J., Hanzo, L.   +5 more
core   +1 more source

An effective method of channels assignment for third generation cellular system

Journal of Telecommunications and Information Technology, 2003
An original hybrid method of channels assignment for DS-CDMA system is discussed in the paper. This method combines standard PN codes assignment policy and dynamic channel assignment procedure that minimise the cost of channel assignment.
Marek Amanowicz, Piotr Z. Gajewski
doaj   +1 more source

Context-aware radio resource management below 6 GHz for enabling dynamic channel assignment in the 5G era

EURASIP Journal on Wireless Communications and Networking, 2017
Heterogeneous networks constitute a promising solution to the emerging challenges of 5G networks. According to the specific network architecture, a macro-cell base station (MBS) shares the same spectral resources with a number of small cell base stations
Ioannis-Prodromos Belikaidis, Stavroula Vassaki, Andreas Georgakopoulos, Aristotelis Margaris, Federico Miatton, Uwe Herzog, Kostas Tsagkaris, Panagiotis Demestichas   +7 more
doaj   +1 more source

NMS-Free Oriented Object Detection Based on Channel Expansion and Dynamic Label Assignment in UAV Aerial Images

Remote Sensing, 2023
Object detection in unmanned aerial vehicle (UAV) aerial images has received extensive attention in recent years. The current mainstream oriented object detection methods for aerial images often suffer from complex network structures, slow inference ...
Yunpeng Dong, Xiaozhu Xie, Zhe An, Zhiyu Qu, Lingjuan Miao, Zhiqiang Zhou   +5 more
doaj   +1 more source

Comparison of Metaheuristic Algorithms for Interface-Constrained Channel Assignment in a Hybrid Dynamic Spectrum Access – Wi-Fi Infrastructure WMN

IEEE Access, 2022
In this work, we evaluate the application of four different metaheuristic optimisation algorithms for solving the channel assignment problem in a multi-radio multi-channel Wireless Mesh Network (WMN) using Dynamic Spectrum Access (DSA). The work advances
Natasha Zlobinsky, David L. Johnson, Amit Kumar Mishra, Albert A. Lysko   +3 more
doaj   +1 more source

Joint QoS multicast routing and channel assignment in multiradio multichannel wireless mesh networks using intelligent computational methods [PDF]

, 2011
Copyright @ 2010 Elsevier B.V. All rights reserved.In this paper, the quality of service multicast routing and channel assignment (QoS-MRCA) problem is investigated. It is proved to be a NP-hard problem.
Yang, S, Shengxiang Yang, Cheng, H, Hui Cheng, Cheng, Hui, Yang, Shengxiang   +5 more
core   +1 more source

A Useful Metaheuristic for Dynamic Channel Assignment in Mobile Cellular Systems

International Journal of Interactive Multimedia and Artificial Intelligence, 2012
The prime objective of a Channel Assignment Problem (CAP) is to assign appropriate number of required channels to each cell in a way to achieve both efficient frequency spectrum utilization and minimization of interference effects (by satisfying a number
Deepak Kumar Singh, K. Srinivas, D. Bhagwan Das   +2 more
doaj   +1 more source

Performance Analysis of QoS-Oriented OFDMA Protocol Based on IEEE 802.11ax for Cognitive Radio Network

Applied Sciences, 2023
To improve the quality of service (QoS) on the internet of medical things, a cognitive radio (CR) protocol based on orthogonal frequency division multiple access (OFDMA) is proposed, named CR-OFDMA.
Suoping Li, Hailing Yang, Ruiman Gao, Tongtong Jia, Hongli Li   +4 more
doaj   +1 more source

Maximally Flexible Assignment of Orthogonal Variable Spreading Factor Codes for Multi-Rate Traffic [PDF]

, 2004
In universal terrestrial radio access (UTRA) systems, orthogonal variable spreading factor (OVSF) codes are used to support different transmission rates for different users.
Yum, TSP, Yang, Y, Yang Yang, T.-S.P. Yum   +3 more
core   +1 more source

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

Sensors, 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, Miguel Camelo, Kevin Mets, Francesc Wilhelmi, David Góez, Luis A. Fletscher, Natalia Gaviria, Peter Hellinckx, Juan F. Botero, Steven Latré   +9 more
doaj   +1 more source