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Selmi Sawsan,Bouallègue Ridha
Pág. 57 - 65
4G is now deployed all over the world, but requirements are about to change rapidly face to the exponential growth on devices number, local service applications and spectrum scarce. To deal with that, 5G networks integrated Device To Device (D2D) communi...
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Prince Semba Yawada and Mai Trung Dong
In recent years, there has been a rapid evolution of wireless technologies that has led to the challenge of high demand for spectral resources. To overcome this challenge, good spectrum management is required that calls for more efficient use of the spec...
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Michael Mackay, Alessandro Raschella and Ogeen Toma
With the widespread deployment of 5G gaining pace, there is increasing interest in deploying this technology beyond traditional Mobile Network Operators (MNO) into private and community scenarios. These deployments leverage the flexibility of 5G itself t...
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Wangyang Song and Dorukalp Durmus
Photometric and colorimetric quantities are calculated using spectral luminous efficiency and color matching functions (CMFs), respectively. Past studies highlighted the limitations of the standard sensitivity functions based on visual experiments conduc...
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Mauro Bonfanti and Giuseppe Giorgi
Wave energy converter (WEC) optimization often underlines incremental and iterative approaches that result in suboptimal solutions, since all the elements that concur with a techno-economical evaluation are optimized separately due to computation constra...
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Mengyuan Zeng, Hongduo Zhao, Kedi Peng, Zeying Bian and Difei Wu
This paper presents a method to assess the load transfer efficiency (LTE) of concrete pavement joints using distributed optical vibration sensors. First, a theoretical analysis of concrete pavement vibration was conducted to investigate how to reflect LT...
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Guang Li and Jianqing Li
In this paper, we propose an optical transmission system of 128 quadrature amplitude modulation for dense wavelength division multiplexing. In such a system, Gaussian optical filtering is used to get an appropriate photonic carrier. Theoretical analysis ...
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In this paper, we show how to realize numerous spectrum licensing policies by means of time-domain enhanced inter-cell interference coordination (eICIC) technique to share both the licensed and unlicensed spectrums with small cells in order to address th...
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Sridhar Iyer,Shree Prakash Singh
Pág. 97 - 107
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Wenjing Shang, Yidong Xu, Junwei Qi, Wei Xue and Sergey B. Makarov
This paper presents a novel method designing an optimized waveform with high spectral efficiency based on minimum out-of-band radiation criterion. Introducing the Pan-function model, Fourier series, and constraints, we achieve the numeric solution of the...
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Takwa BOUALLEGUE,Kaouthar SETHOM
Cognitive radio holds great promise as a research area nowadays. By increasing the spectral efficiency, it is applicable to various areas where spectrum is a rare resource. Nevertheless, it still presents key challenges such as the interference and the f...
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Ning Zhao, Zhilong Xu, Liuliu Peng, Xiaolong Li, Xiaowei Chen and Xuewei Wang
An enhanced interpolation approach is developed for simulating nonseparable nonstationary ground motions on the basis of the spectral representation method, which mainly contains two steps of interpolations and an optimization. Firstly, the interpolation...
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Jun Ma, Fan Chen, Cong Wei and Rihong Zhu
The constructed model is able to provide some theoretical instructions for the future design of a filter that is beneficial for achieving an optimal combining efficiency and beam quality for the 10-kW-class filter-based spectral beam combination system.
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Salah El-Hendawy, Nasser Al-Suhaibani, Yaser Hassan Dewir, Salah Elsayed, Majed Alotaibi, Wael Hassan, Yahya Refay and Muhammad Usman Tahir
Hyperspectral sensing offers a quick and non-destructive alternative for assessing phenotypic parameters of plant physiological status and salt stress tolerance. This study compares the performance of published and modified spectral reflectance indices (...
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Prince Semba Yawada and Mai Trung Dong
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AssalWard Akhoder,AbdelNasser Assimi,Mohamed Alhariri
Pág. 340 - 349
In this paper, we analyze a new cross layer combining scheme of adaptive modulation and coding (AMC) at the physical layer and hybrid automatic repeat request (HARQ) protocol at the data link layer. Our purpose is to improve the performance of the commun...
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Alexandr Burmenko,Natalya Deyneko,Irina Hrebtsova,Igor Kryvulkin,Olga Prokopenko,Roman Shevchenko,Olexandr Tarasenko
Pág. 56 - 61
Film solar cells have been investigated to meet the need for an alternative system of electricity supply during the elimination and prevention of an emergency when an electricity supply system is damaged. Given the high degradation resistance of cadmium ...
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Manal Abdullah , Jamal Al-Ani , Shima Abdulridha , Mazin Al- Ansari
Pág. 1 - 9
Introduction: It is well known that the biggest problem facing the utilizing of solar cell Panels in Baghdad is the unpredictable dusty weather through the days of year. This big problem is not easy to overcome due to the frequent dust accumulations and ...
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Matija Milanic and Rok Hren
The Adding-Doubling (AD) algorithm is a general analytical solution of the radiative transfer equation (RTE). AD offers a favorable balance between accuracy and computational efficiency, surpassing other RTE solutions, such as Monte Carlo (MC) simulation...
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Evgeni Mokrov and Konstantin Samouylov
The roll-outs of fifth-generation (5G) New Radio (NR) systems operating in the millimeter-wave (mmWave) frequency band are essential for satisfying IMT-2020 requirements set forth by ITU-R in terms of the data rate at the access interface. To overcome mm...
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