Results 41 to 50 of about 258,598 (299)
A dynamic spectrum access scheme for cognitive radio networks
, 2009 —In this paper, the dynamic spectrum access problem for cognitive radio (CR) networks is formulated as maximizing the sum channel capacity while satisfying the power budgets of individual secondary user radios as well as the SINR constraints on both the ...
K.-L. Du +9 more
core +1 more source
Spectrum Hole Geolocation for Database-Driven IoT-Enabled Dynamic Spectrum Access
IEEE AccessThe effective realization of dynamic spectrum access (DSA) subsumes that, when a secondary terminal seeks a vacant band, the geolocation of the candidate spectrum hole coincides with the position of the terminal.
Dayan Adionel Guimaraes
doaj +1 more source
Blockchain for Dynamic Spectrum Access and Network Slicing: A Review
IEEE Access, 2023 Dynamic spectrum access (DSA) and network slicing are some of the principal concepts to realize the emerging applications in Beyond 5th Generation (B5G) and 6th Generation (6G) networks.
Sidra Tul Muntaha +5 more
doaj +1 more source
IEEE Access, 2020 With the envisioned massive connectivity era, one of the challenges for 5G/Beyond 5G (B5G) wireless systems will be handling the unprecedented spectrum crunch.
Soo-Min Kim +7 more
doaj +1 more source
A Centralized Model Enabling Channel Reuse for Spectrum Allocation in Cognitive Radio Networks
Cybernetics and Information Technologies, 2021 Cognitive Radio (CR) is an advanced technology, which intends to boost the radio spectrum utilization. On perceiving the spectrum holes, next there is a need to provide a fair distribution of the vacant licensed channels amongst Secondary Users (SUs ...
Devi Monisha +2 more
doaj +1 more source
Fast Frequency-Hopping Dynamic Multiple-Access for Cognitive Radios: Suboptimum Noncoherent Maximum-Likelihood Multiuser Detection [PDF]
, 2010 We propose a novel dynamic multiple-access (DMA) scheme for application in cognitive radios (CRs). This DMA scheme is implemented by fast frequency hopping with $M$-ary frequency-shift keying (FFH/MFSK) associated with suboptimum noncoherent maximum ...
Shuo Zhang +5 more
core +1 more source
Organoids in pediatric cancer research
FEBS Letters, EarlyView.Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley +1 more source
IEEE Access, 2020 Spectrum prediction is a key enabler of a range of emerging applications, from adaptive spectrum sensing to agile and proactive decision making, for dynamic spectrum access.
Xi Li +4 more
doaj +1 more source
Reciprocal control of viral infection and phosphoinositide dynamics
FEBS Letters, EarlyView.Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley +1 more source
Evolutionary Game Theory Perspective on Dynamic Spectrum Access Etiquette
IEEE Access, 2018 In this paper, we describe the long-term evolution of societies of secondary users in dynamic spectrum access networks. Such an understanding is important to help us anticipate future trends in the organization of large-scale distributed networked ...
Mohammad Abu Shattal +4 more
doaj +1 more source