Breaking Spectrum Gridlock With Cognitive Radios: An Information Theoretic Perspective

By Andrea J. Goldsmith, Syed Ali Jafar, Ivana Maric, Sudhir Srinivasa. Proceedings of the IEEE, 2009

2,481 citations recorded by the source corpus.

Subfields: Computer Networks and Communications, Electrical and Electronic Engineering

View Paper: https://www.semanticscholar.org/paper/34a2e2323200b799d2b560aac1021bb4c8c27c30

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Citations in the corpus

Stackelberg game for utility-based cooperative cognitiveradio networks (2009, background): “Cognitive radio systems can be divided into three paradigms: underlay, overlay and interweave paradigms [1, 8].”
Cognitive Network Interference (2011, background): “Therefore, opportunistic spectrum access together with a cognitive radio (CR) technology has become a promising solution to resolve this problem [3]–[7].”
Optimal Resource Allocation in Coordinated Multi-Cell Systems (2013, background): “Underlay cognitive radio is a scenario where a secondary system is allowed to use the licensed spectrum of a primary system if it causes mild interference on the primary system [90, 120, 230, 327]; see Figure 1.”
Nonorthogonal Multiple Access in Large-Scale Underlay Cognitive Radio Networks (2016, background): “Another approach to improve spectrum efficiency is the paradigm of underlay cognitive radio (CR) networks, which was proposed in [6] and has rekindled increasing interest in using the spectrum more efficiently.”
Index Modulation Techniques for Next-Generation Wireless Networks (2017, neutral): “Depending on the access strategy of SUs, there are three main network paradigms: underlay, overlay and interweave [202], [203].”
Nonorthogonal Multiple Access for 5G and Beyond (2017, methodology): “Inspired by the CR concept [166], NOMA can be regarded as a special case of CR networks [24], [167].”
A Survey on Machine-Learning Techniques in Cognitive Radios (2013, background): “With this interpretation of CRs, a new era of CRs began, focusing on dynamic spectrum sharing (DSS) techniques to improve the utilization of the crowded RF spectrum [6]–[10].”
Wireless Myths, Realities, and Futures: From 3G/4G to Optical and Quantum Wireless (2012, background): “ny important aspects of contemporary wireless solutions have not even been touch upon owing to space-limitations, such as the beneﬁts of Ultra-Wideband (UWB) systems [165] or Cognitive 27 Radios (CR) [166, 167] - just to mention a few of the essential elements of the wireless landscape. Again, over ”
A Survey on MAC Strategies for Cognitive Radio Networks (2012, background): “In [53], three different cognitive transmission access paradigms are presented: underlay, overlay and interweave.”
Dynamic Resource Allocation in Cognitive Radio Networks (2010, methodology): “ will be reviewed in this article. To date, quite a few operation models have been proposed for CRs; however, there is no consensus yet on the terminology used for the associated deﬁnitions [1], [2], [3]. Generally speaking, there are two basic operation models for CRs: Opportunistic Spectrum Access”
Convex Optimization in Signal Processing and Communications (2009, background): “The decision vector x in problem (1.1) can be viewed as either a resource vector whose components correspond to resources allocated to each agent, or a global parameter vector to be estimated by the agents using local information.”
On Ergodic Sum Capacity of Fading Cognitive Multiple-Access and Broadcast Channels (2008, background): “For OSA, an enabling technology is to detect the primary transmission on/off status, also known as spectrum sensing, for which many algorithms have been reported in the literature (see, e.g., [4] and references threin).”
Impact of User Pairing on 5G Nonorthogonal Multiple-Access Downlink Transmissions (2016, background): “COGNITIVE RADIO INSPIRED NONORTHOGONAL MULTIPLE ACCESS NOMA can be also viewed as a special case of cognitive radio systems [14], [15], in which a user with a strong channel condition, viewed as a secondary user, is squeezed into the spectrum occupied by a user with a poor channel condition, viewed ”
Outage Probability of Cognitive Relay Networks with Interference Constraints (2011, methodology): “IN cognitive radio networks, unlicensed users (secondary users) are permitted to use the licensed band so long as they protect the data transmission of the licensed user (primary user) using spectrum underlay, overlay and interweave approaches [1].”
A Survey of Rate-Optimal Power Domain NOMA With Enabling Technologies of Future Wireless Networks (2019, background): “CR schemes can be classified into three paradigms, namely, underlay, overlay, and interweave [125].”
Integrated Satellite-Terrestrial Networks Toward 6G: Architectures, Applications, and Challenges (2022, methodology): “The CR techniques can be mainly divided into three modes: 1) underlay; 2) overlay; and 3) interweave [81].”
Cognitive radio networking and communications: an overview (2011, background): “We note that some authors also refer to this model as spectrum overlay in [9] and [10] and interweave paradigm in [11].”
Interference and Outage in Poisson Cognitive Networks (2012, background): “One of the ideas in cognitive radio is that a cognitive (secondary) user is allowed to share the spectrum with primary users as long as the interference is below a threshold (the underlay type of cognitive network) [1].”