Results 11 to 20 of about 57,898 (312)

Optimizing Cooperative Cognitive Radio Networks with Opportunistic Access [PDF]

open access: yesJournal of Computer Networks and Communications, 2012
Optimal resource allocation for cooperative cognitive radio networks with opportunistic access to the licensed spectrum is studied. Resource allocation is based on minimizing the symbol error rate at the receiver.
Ammar Zafar   +3 more
doaj   +2 more sources

Noncooperative equilibrium solutions for spectrum access in distributed cognitive radio networks [PDF]

open access: yes, 2008
This paper considers the problem of channel selection and dynamic spectrum access in distributed cognitive radio networks. The ability of a cognitive radio to adaptively switch between channels offers tremendous scope to optimize performance.
Zhong Fan   +9 more
core   +1 more source

A dynamic spectrum access scheme for cognitive radio networks [PDF]

open access: yes, 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

Fiber link design considerations for cloud-Radio Access Networks [PDF]

open access: yes, 2014
Analog radio over fiber (RoF) links may offer advantages for cloud-Radio Access Networks in terms of component cost, but the behavior of the distortion with large numbers of subcarriers needs to be understood. In this paper, this is presented in terms of
Luis C. Vieira   +7 more
core   +1 more source

Cognitive Radio Wireless Sensor Networks: Applications, Challenges and Research Trends

open access: yesSensors, 2013
A cognitive radio wireless sensor network is one of the candidate areas where cognitive techniques can be used for opportunistic spectrum access. Research in this area is still in its infancy, but it is progressing rapidly.
Gyanendra Prasad Joshi   +2 more
doaj   +1 more source

Utility Analysis of Radio Access Network Slicing [PDF]

open access: yesIEEE Transactions on Vehicular Technology, 2020
The utility optimization problem of radio access network-slicing aided mobile systems is formulated considering both throughput and delay demands from a mobile network operator's perspective, whilst relying on stochastic geometry and Lyapunov optimization.
Guorong Zhou   +4 more
openaire   +2 more sources

Pragmatic distributed algorithm for spectral access in cooperative cognitive radio networks [PDF]

open access: yes, 2014
A pragmatic distributed algorithm (PDA) is proposed for supporting the efficient spectral access of multiple Primary Users (PUs) and Cognitive Users (CUs) in cooperative Cognitive Radio (CR) networks. The novelty of our PDA is that the PUs negotiate with
Ng, S.X.   +3 more
core   +1 more source

Mobility-aware QoS assurance in software-defined radio access networks: an analytical study [PDF]

open access: yes, 2015
Software-defined networking (SDN) has gained a tremendous attention in the recent years, both in academia and industry. This revolutionary networking paradigm is an attempt to bring the advances in computer science and software engineering into the ...
Andreas Bontozoglou   +8 more
core   +1 more source

Artificial Intelligence in Open-Radio Access Network

open access: yesIEEE Aerospace and Electronic Systems Magazine, 2022
This tutorial seeks to outline the proposed Open Radio Access Network (O-RAN) deployment for Fifth generation (5G) wireless networks. O-RAN seeks to supplant hardware-specific Radio Access Network (RAN) components (e.g., the mobility management entity (MME) or base station (gNB)) with generic hardware, specialized software, and open signaling ...
Paul H. Masur   +2 more
openaire   +2 more sources

Cooperative Radio Resource Management in Heterogeneous Cloud Radio Access Networks

open access: yesIEEE Access, 2015
Responding to the unprecedented challenges imposed by the 5G communications ecosystem, emerging heterogeneous network architectures allow for improved integration between multiple radio access technologies.
Mikhail Gerasimenko   +7 more
doaj   +1 more source

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