scispace - formally typeset
Search or ask a question
Institution

University of Cassino

EducationCassino, Italy
About: University of Cassino is a education organization based out in Cassino, Italy. It is known for research contribution in the topics: MIMO & Robot. The organization has 1210 authors who have published 6250 publications receiving 122932 citations.


Papers
More filters
Journal ArticleDOI
TL;DR: This paper discusses all of these topics, identifying key challenges for future research and preliminary 5G standardization activities, while providing a comprehensive overview of the current literature, and in particular of the papers appearing in this special issue.
Abstract: What will 5G be? What it will not be is an incremental advance on 4G. The previous four generations of cellular technology have each been a major paradigm shift that has broken backward compatibility. Indeed, 5G will need to be a paradigm shift that includes very high carrier frequencies with massive bandwidths, extreme base station and device densities, and unprecedented numbers of antennas. However, unlike the previous four generations, it will also be highly integrative: tying any new 5G air interface and spectrum together with LTE and WiFi to provide universal high-rate coverage and a seamless user experience. To support this, the core network will also have to reach unprecedented levels of flexibility and intelligence, spectrum regulation will need to be rethought and improved, and energy and cost efficiencies will become even more critical considerations. This paper discusses all of these topics, identifying key challenges for future research and preliminary 5G standardization activities, while providing a comprehensive overview of the current literature, and in particular of the papers appearing in this special issue.

7,139 citations

Journal ArticleDOI
TL;DR: In this article, the authors investigate the role of trust in inter-organizational exchange at two levels of analysis and assess its effects on negotiation costs, conflict, and ultimately performance.
Abstract: A conceptual challenge in exploring the role of trust in interorganizational exchange is translating an inherently individual-level concept-trust-to the organizational-level outcome of performance. We define interpersonal and interorganizational trust as distinct constructs and draw on theories of interorganizational relations to derive a model of exchange performance. Specifically, we investigate the role of trust in interfirm exchange at two levels of analysis and assess its effects on negotiation costs, conflict, and ultimately performance. Propositions were tested with data from a sample of 107 buyer-supplier interfirm relationships in the electrical equipment manufacturing industry using a structural equation model. The results indicate that interpersonal and interorganizational trust are related but distinct constructs, and play different roles in affecting negotiation processes and exchange performance. Further, the hypotheses linking trust to performance receive some support, although the precise nature of the link is somewhat different than initially proposed. Overall, the results show that trust in interorganizational exchange relations clearly matters.

3,927 citations

Journal ArticleDOI
TL;DR: Reconfigurable intelligent surfaces (RISs) can be realized in different ways, which include (i) large arrays of inexpensive antennas that are usually spaced half of the wavelength apart; and (ii) metamaterial-based planar or conformal large surfaces whose scattering elements have sizes and inter-distances much smaller than the wavelength.
Abstract: Reconfigurable intelligent surfaces (RISs) are an emerging transmission technology for application to wireless communications. RISs can be realized in different ways, which include (i) large arrays of inexpensive antennas that are usually spaced half of the wavelength apart; and (ii) metamaterial-based planar or conformal large surfaces whose scattering elements have sizes and inter-distances much smaller than the wavelength. Compared with other transmission technologies, e.g., phased arrays, multi-antenna transmitters, and relays, RISs require the largest number of scattering elements, but each of them needs to be backed by the fewest and least costly components. Also, no power amplifiers are usually needed. For these reasons, RISs constitute a promising software-defined architecture that can be realized at reduced cost, size, weight, and power (C-SWaP design), and are regarded as an enabling technology for realizing the emerging concept of smart radio environments (SREs). In this paper, we (i) introduce the emerging research field of RIS-empowered SREs; (ii) overview the most suitable applications of RISs in wireless networks; (iii) present an electromagnetic-based communication-theoretic framework for analyzing and optimizing metamaterial-based RISs; (iv) provide a comprehensive overview of the current state of research; and (v) discuss the most important research issues to tackle. Owing to the interdisciplinary essence of RIS-empowered SREs, finally, we put forth the need of reconciling and reuniting C. E. Shannon’s mathematical theory of communication with G. Green’s and J. C. Maxwell’s mathematical theories of electromagnetism for appropriately modeling, analyzing, optimizing, and deploying future wireless networks empowered by RISs.

1,158 citations

Journal ArticleDOI
TL;DR: An overview of HMIMOS communications including the available hardware architectures for reconfiguring such surfaces are provided, and the opportunities and key challenges in designingHMIMOS-enabled wireless communications are highlighted.
Abstract: Future wireless networks are expected to evolve toward an intelligent and software reconfigurable paradigm enabling ubiquitous communications between humans and mobile devices. They will also be capable of sensing, controlling, and optimizing the wireless environment to fulfill the visions of low-power, high-throughput, massively- connected, and low-latency communications. A key conceptual enabler that is recently gaining increasing popularity is the HMIMOS that refers to a low-cost transformative wireless planar structure comprised of sub-wavelength metallic or dielectric scattering particles, which is capable of shaping electromagnetic waves according to desired objectives. In this article, we provide an overview of HMIMOS communications including the available hardware architectures for reconfiguring such surfaces, and highlight the opportunities and key challenges in designing HMIMOS-enabled wireless communications.

925 citations


Authors

Showing all 1233 results

NameH-indexPapersCitations
C. Pagliarone7979627164
Chau Yuen7175222015
Giovanni Esposito6561418802
Lorenzo Breschi6430515889
Giovanni Martinotti563419324
J. Wyss5635011570
Angelo Vulpiani5438416220
Domenico Caputo534829408
Jorge Angeles5251813771
Antonio M. Pascoal493718905
Raimondo Luciano471084620
Giuseppe La Torre474138675
Giuseppe Carbone425017636
Stefano Chiaverini422056936
Giorgio Buonanno421917001
Network Information
Related Institutions (5)
University of Naples Federico II
68.8K papers, 1.9M citations

91% related

University of Bologna
115.1K papers, 3.4M citations

90% related

City University of Hong Kong
60.1K papers, 1.7M citations

90% related

Royal Institute of Technology
68.4K papers, 1.9M citations

90% related

University of Padua
114.8K papers, 3.6M citations

89% related

Performance
Metrics
No. of papers from the Institution in previous years
YearPapers
202314
202256
2021366
2020352
2019442
2018466