A Review on OFDM and PAPR Reduction Techniques

Кумар, Арун; Gupta, Manisha

doi:10.3844/ajeassp.2015.202.209

Cited by 21 publications

(12 citation statements)

References 34 publications

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“…Recent developments in various areas of nanotechnology show significant promise in addressing many of challenges faced by the construction industry ranging from structural strength enhancement to self-cleaning [1,[36][37][38][39] and biocidal properties [40]. In particular, incorporating nanoparticles or nanolayers into polymer matrix coatings and thin films can provide enhanced performance and additional functionalities [1].…”

Section: Scope Definition Problem Analysis and Requirements Analysismentioning

confidence: 99%

Design of Nanomodified Intumescent Polymer Matrix Coatings: Theory, Modeling, Experiments

2018

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Thermoset-based polymer matrix composites are widely used for production of intumescent fire protective coatings; many operational properties of such coatings can be further enhanced by means of nanoscale layers between matrix and disperse phases. The dependence between temperature of processing and temperature of glass transition of thermosetting matrix allows to produce gradient of glass transition temperature along the depth of the coating and lower exfoilation of char residue from steel substrate. In the present article we have offered the novel design scheme for such coating. Several results of laboratory and numerical experiments that are within the framework of the offered scheme are also presented. Application of the offered scheme allows to develop efficient fire protective coatings in purposely and precisely controlled manner.

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Section: Scope Definition Problem Analysis and Requirements Analysismentioning

confidence: 99%

Design of Nanomodified Intumescent Polymer Matrix Coatings: Theory, Modeling, Experiments

2018

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“…A signal from BS comes through a different distance, is subject to attenuation because of free space losses and also distance, delay is different which means the phase that is arise at MS is different [3,19]. The same transmitted signal arriving at the MS with different path, receiving signals is added up at the MS with different attenuation and different delay, this result either constructive interference or destructive interference [18].…”

Section: Wireless Propagation and Environmental Modelmentioning

confidence: 99%

Mobile Communication - Past, Present and Future: a Review

Pandi

Nargund²

2018

The Scientific Bulletin of Electrical Engineering Faculty

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Communication is one of the most important things in human life, day by day the technology is changing, data rate becomes faster and equipment’s are also becoming compact, as the results of change in technology. The human beings have also adapted to the technology as well. In this article the revolution of wireless technologies like 2G, 3G, 4G and 5G (Future generation network) are explained. This article mainly focused on background of wireless communication system, models and technologies adapted for 4G and 5G. The key technologies, spectrum allocation and current projects are discussed and described; this work gives a detailed research to address the projects and developments for future generation wireless technology.

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“…However in cellular communication, the spectrum is not utilized properly which leads to Cognitive Radio (Kumar and Gupta, 2015b).…”

Section: Orthogonal Frequency Division Multiplexing (Ofdm)mentioning

confidence: 99%

“…The whole system will get simplified by introducing IFFT and FFT operations. This entire process is named as Orthogonal Frequency Division Multiplexing (OFDM) (Kumar and Gupta, 2015b). By implementing this on Digital Signal Processor (DSP), it is possible to operate the system at higher speed.…”

Section: Introductionmentioning

confidence: 99%

A Review on Cognitive Radio for Next Generation Cellular Network and its Challenges

Pandi¹,

Кумар²

2017

American Journal of Engineering and Applied Sciences

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Cognitive Radio (CR) is considered an intelligent technology. It improves the utilization of the radio spectrum. The increasing number of new devices has resulted in growing congestion of the ISM bands. FCC issued an order only permitting unlicensed users (secondary users) to operate in white space without interfering with licensed users (primary users). Cognitive Radio Networks (CRNs) provides a solution to the problem of additional spectrum requirements by utilizing the spectrum more efficiently. CR is able to sense the spectrum and share the spectrum with unlicensed users. There are number of popular spectrum sensing techniques in CR such as cyclostationary feature detection, energy detection and matched filter detection, which capture the best available spectrum. They use a spectrum dynamically in wireless communication network. A CR with multicarrier technique (OFDM and FBMC) are the next generation of advanced cellular network, which would provide better spectrum utilization and therefore have greater capacity. In this study we have described and reviewed CR technology and its numerous features that may play a very essential role in the field of next generation wireless communication networks.

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A Review on OFDM and PAPR Reduction Techniques

Cited by 21 publications

References 34 publications

Design of Nanomodified Intumescent Polymer Matrix Coatings: Theory, Modeling, Experiments

Design of Nanomodified Intumescent Polymer Matrix Coatings: Theory, Modeling, Experiments

Mobile Communication - Past, Present and Future: a Review

A Review on Cognitive Radio for Next Generation Cellular Network and its Challenges

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