Results 1 to 10 of about 4,874,334 (273)

Dynamic Spectrum Allocation Using Multi-Source Context Information in OpenRAN Networks [PDF]

open access: yesSensors, 2022
Bearing in mind the stringent problem of limited and inefficiently used radio resources, a multi-source mechanism for the dynamic adjustment of occupied frequency bands is proposed.
Łukasz Kułacz, Adrian Kliks
doaj   +2 more sources

Analysis and Simulation of the Dynamic Spectrum Allocation Based on Parallel Immune Optimization in Cognitive Wireless Networks [PDF]

open access: yesThe Scientific World Journal, 2014
Spectrum allocation is one of the key issues to improve spectrum efficiency and has become the hot topic in the research of cognitive wireless network. This paper discusses the real-time feature and efficiency of dynamic spectrum allocation and presents ...
Wu Huixin, Mo Duo, Li He
doaj   +2 more sources

On Dynamic Spectrum Allocation in Geo-Location Spectrum Sharing Systems

open access: yesIEEE Transactions on Mobile Computing, 2019
Spectrum sharing is a key technology to relieve the ever-increasing spectrum demand and realize the full potential of radio spectrum. In this paper, we study spectrum sharing between higher priority users and lower priority users under geo-location based spectrum sharing systems.
Chunsheng Xin, Qiong Gu, Min Song
exaly   +3 more sources

Research on Dynamic Spectrum Sharing in the Internet of Vehicles Based on Blockchain and Game Theory [PDF]

open access: yesSensors
With the rapid development of the Internet of Vehicles (IoV), the explosive growth of data traffic within the system has led to a surge in demand for spectrum resources.
Xianhao Shen   +3 more
doaj   +2 more sources

Intelligent Dynamic Real-Time Spectrum Resource Management for Industrial IoT in Edge Computing

open access: yesSensors, 2021
Intelligent dynamic spectrum resource management, which is based on vast amounts of sensing data from industrial IoT in the space–time and frequency domains, uses optimization algorithm-based decisions to minimize levels of interference, such as energy ...
Deok-Won Yun, Won-Cheol Lee
doaj   +1 more source

Dynamic Spectrum Resource Allocation in Internet of Vehicles Based on SAC Reinforcement Learning [PDF]

open access: yesJisuanji gongcheng, 2021
To address the scarcity of spectrum resources in Internet of Vehicles(IoV), a novel multi-agent dynamic spectrum allocation solution based on Soft Actor-Critic(SAC) reinforcement learning is proposed.The solution aims to maximize the total channel ...
HUANG Yufan, PENG Nuoheng, LIN Yan, FAN Jiancun, ZHANG Yijin, YU Yanqiu
doaj   +1 more source

Double Auctions for Dynamic Spectrum Allocation [PDF]

open access: yesIEEE/ACM Transactions on Networking, 2014
Wireless spectrum is a precious resource and must be allocated and used efficiently. Conventional spectrum allocations let a government agency (e.g., FCC) sell a portion of spectrum to one provider. This is not only restrictive, but also limits spectrum reuse and may lead to significant under-utilization of spectrum.
Wei Dong   +4 more
openaire   +1 more source

Dynamic Spectrum Allocation Method of Shortwave Radio Access Network Based on Graph Coloring Theory [PDF]

open access: yesJisuanji gongcheng, 2016
Aiming at the problem that the existing fixed spectrum allocation method of shortwave radio access network can not satisfy the new requirement of applying intelligent frequency hopping technology,the spectrum demand of shortwave radio access network ...
DUAN Ruijie,YAO Fuqiang,LI Yonggui,NIU Yingtao,QI Yangyang
doaj   +1 more source

Resource and power costs in dynamic spectrum allocation [PDF]

open access: yes2008 42nd Annual Conference on Information Sciences and Systems, 2008
We consider a network setting, where a single service provider (SP) provides wireless data services to a group of users in the downlink. The transmission model is similar to OFDMA and thus the SP allocates spectrum to the users. The SP transmits at specific power spectral density.
Joydeep Acharya, Roy D. Yates
openaire   +2 more sources

The CODYSUN Approach: A Novel Distributed Paradigm for Dynamic Spectrum Sharing in Satellite Communications

open access: yesSensors, 2021
With a constant increase in the number of deployed satellites, it is expected that the current fixed spectrum allocation in satellite communications (SATCOM) will migrate towards more dynamic and flexible spectrum sharing rules.
Irfan Jabandžić   +6 more
doaj   +1 more source

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