Academic literature on the topic 'Frequency spectrum and efficient transmission'

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Journal articles on the topic "Frequency spectrum and efficient transmission"

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Ma, Xikai. "A Review of Two Types of New Key Technologies of 6G." Highlights in Science, Engineering and Technology 38 (March 16, 2023): 598–604. http://dx.doi.org/10.54097/hset.v38i.5889.

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The increasing need of future 6G wireless communication of higher transmission rate, larger network capacity, higher energy efficiency has been calling for the development of new key technologies. Among them, the two most popular and promising technologies are new spectrum access technology and efficient wireless transmission technology. New spectrum access technology intends to achieve the utilization of more available spectrum resources with higher frequency and wider bandwidth so that it can highly improve the data transfer rate and expand the network capacity. It includes Terahertz communi
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ABE, Jun-ichi, Fumihiro YAMASHITA, Katsuya NAKAHIRA, and Kiyoshi KOBAYASHI. "Direct Spectrum Division Transmission for Highly Efficient Frequency Utilization in Satellite Communications." IEICE Transactions on Communications E95-B, no. 2 (2012): 563–71. http://dx.doi.org/10.1587/transcom.e95.b.563.

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Yun, Deok-Won, and Won-Cheol Lee. "Intelligent Dynamic Spectrum Resource Management Based on Sensing Data in Space-Time and Frequency Domain." Sensors 21, no. 16 (2021): 5261. http://dx.doi.org/10.3390/s21165261.

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Edge computing offers a promising paradigm for implementing the industrial Internet of things (IIoT) by offloading intensive computing tasks from resource constrained machine type devices to powerful edge servers. However, efficient spectrum resource management is required to meet the quality of service requirements of various applications, taking into account the limited spectrum resources, batteries, and the characteristics of available spectrum fluctuations. Therefore, this study proposes intelligent dynamic spectrum resource management consisting of learning engines that select optimal bac
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Pratt, Thomas G., Jun Chen, and Farzad Talebi. "Towards Efficient Spectrum Utilization with Polarization-Based Architectures." International Journal of Handheld Computing Research 6, no. 2 (2015): 1–19. http://dx.doi.org/10.4018/ijhcr.2015040101.

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Space-polarization MIMO architectures are proposed as a contributing technology to advance efficient spectrum utilization. These architectures have the advantage of leveraging both space and polarization channel correlations, opening the door to diversities and to the effective application of technologies at both the transmit side and the receive side to support spectrum efficiency and sharing. In this paper the authors review some of their work associated with polarization and space-polarization architectures, including channel modeling, sounding and parameter estimation to assist in the deve
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De Cesare, Pablo Nicolas. "Characterization of the ISDB-Tb critical spectrum mask." ACTA IMEKO 1, no. 1 (2012): 42. http://dx.doi.org/10.21014/acta_imeko.v1i1.19.

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Non-linearity in the ISDB-T transmission chain causes intermodulation products that widens the spectrum emission and should be taken into account when assigning frequency channels. The characterization of the transmission spectrum mask is one of the most important measurements in order to achieve the best use of the electromagnetic spectrum. The use of critical mask defined in [1] allows allocations of co-site adjacent channels for an efficient use of the electromagnetic spectrum that is a finite and limited resource. This paper discusses different test procedures using spectrum analyzers and
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Mhatre, Jui, Ahyoung Lee, and Ramazan Aygun. "Frequency-hopping scheduling algorithm for energy-efficient IoT, long-range, wide-area networks." Applied Computing and Intelligence 4, no. 2 (2024): 300–327. https://doi.org/10.3934/aci.2024018.

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<p>A long-range, wide-area network is a cost-effective, energy-efficient technology for wide-area sensor networks. But the massive Internet of Things (IoT) brings challenges such as increased traffic and energy consumption. Thus, there is a pressing need to design a scheduling strategy to improve network energy efficiency without compensating for its reliability. We have proposed a deep deterministic policy gradient-based scheduling algorithm with a frequency-hopping spread spectrum that avoids repeated collisions and retransmissions. Frequency-hopping divides frequency channels into sub
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Mashino, Jun, and Takatoshi Sugiyama. "Spectrum Suppressed Transmission Scheme for Higher Frequency Utilization Efficiency." NTT Technical Review 10, no. 3 (2012): 42–47. http://dx.doi.org/10.53829/ntr201203ra1.

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Dikmese, Sener, Sudharsan Srinivasan, Musbah Shaat, Faouzi Bader, and Markku Renfors. "Spectrum sensing and resource allocation for multicarrier cognitive radio systems under interference and power constraints." EURASIP Journal on Advances in Signal Processing 2014, no. 68 (2014): 1687–6180. https://doi.org/10.5281/zenodo.58002.

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Multicarrier waveforms have been commonly recognized as strong candidates for cognitive radio. In this paper, we study the dynamics of spectrum sensing and spectrum allocation functions in cognitive radio context using very practical signal models for the primary users (PUs), including the effects of power amplifier nonlinearities. We start by sensing the spectrum with energy detection-based wideband multichannel spectrum sensing algorithm and continue by investigating optimal resource allocation methods. Along the way, we examine the effects of spectral regrowth due to the inevitable power am
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Lam, Y. M., and P. H. Wittke. "Frequency-hopped spread-spectrum transmission with band-efficient modulations and simplified noncoherent sequence estimation." IEEE Transactions on Communications 38, no. 12 (1990): 2184–96. http://dx.doi.org/10.1109/26.64661.

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Purwandi, Ahmad Wahyu, Abdul Rasyid, and Guntur Wahyu Sejati. "Komunikasi Suara Sinyal Digital Dengan Transmisi Frekuensi 2,4 Ghz." Jurnal Teknologi Informasi dan Terapan 6, no. 2 (2019): 93–102. http://dx.doi.org/10.25047/jtit.v6i2.112.

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The limitations of developing high-tech communication systems cause the area of people who can use this service to be uneven. One technology that can be used for areas not yet reached by this high-tech communication service is to use radio communication technology. Today radio communication technology continues to develop and produce an increasingly limited frequency spectrum. One way to improve the efficient use of available frequency spectrums is the transition from analog technology to digital technology. A very significant benefit in the use of digital technology is to save the use of radi
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Dissertations / Theses on the topic "Frequency spectrum and efficient transmission"

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Koike, Toshiaki. "Space-time-frequency signal processing for spectrum-efficient multiple-antenna wireless transmission systems." 京都大学 (Kyoto University), 2005. http://hdl.handle.net/2433/144509.

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Kyoto University (京都大学)<br>0048<br>新制・課程博士<br>博士(情報学)<br>甲第11908号<br>情博第180号<br>新制||情||40(附属図書館)<br>23688<br>UT51-2005-N742<br>京都大学大学院情報学研究科通信情報システム専攻<br>(主査)教授 吉田 進, 教授 酒井 英昭, 教授 佐藤 亨<br>学位規則第4条第1項該当
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Bury, Andreas. "Efficient multi-carrier spread spectrum transmission /." Düsseldorf : VDI-Verl, 2001. http://www.gbv.de/dms/bs/toc/339637714.pdf.

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Sivarajan, Kumar N. McEliece Robert J. McEliece Robert J. "Spectrum efficient frequency assignment for cellular radio /." Diss., Pasadena, Calif. : California Institute of Technology, 1990. http://resolver.caltech.edu/CaltechETD:etd-11082007-105043.

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Barton, Taylor Wallis. "Phase manipulation for efficient radio frequency transmission." Thesis, Massachusetts Institute of Technology, 2012. http://hdl.handle.net/1721.1/78474.

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Thesis (Sc. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2012.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 109-112).<br>Power amplifiers (PAs) for microwave communications are generally the most power-hungry element of a transmitter. High linearity is required for modern digital communications standards, and often is achieved at the expense of efficiency. Outphasing architectures, which combine multiple nonlinear but efficient switching PAs into a system with an overall linear response, represent a pro
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Madon, Phiroz H., Shrirang Gadgil, Daniel J. Harasty, Heechang Kim, Anthony A. Triolo, and Robert A. Ziegler. "A Spectrum Management Tool to Aid Efficient Frequency Assignments at Test Ranges." International Foundation for Telemetering, 2012. http://hdl.handle.net/10150/581624.

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ITC/USA 2012 Conference Proceedings / The Forty-Eighth Annual International Telemetering Conference and Technical Exhibition / October 22-25, 2012 / Town and Country Resort & Convention Center, San Diego, California<br>Increasing demands for telemetry bandwidth in conjunction with commercial encroachments on telemetry spectrum have created a need for test range operations personnel to make frequency assignments in the most efficient manner possible. The Spectrum Management System (SMS) project researches a potential tool to bring advanced capabilities to the assistance of test range operations
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Graf, Patrick Anthony. "Efficient bit encoding in backscatter wireless systems." Thesis, Georgia Institute of Technology, 2010. http://hdl.handle.net/1853/33946.

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As the size and power consumption of microelectronic circuits continues to decrease, passively-powered sensors promise to come to the forefront of commercial electronics. One of the most promising technologies that could realize this goal is backscatter sensing. Backscatter sensors could harvest power from and modulate data onto an impinging carrier waveform. Currently radio frequency identification (RFID) technology passively powers itself and transmits statically stored data. However, this technology has two major weaknesses: lack of resiliency against narrowband interference and slow data r
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El, Moutaouakkil Zakaria. "Spectrum-efficient cognitive MIMO relaying : a practical design perspective." Thesis, Ecole nationale supérieure Mines-Télécom Atlantique Bretagne Pays de la Loire, 2018. http://www.theses.fr/2018IMTA0092.

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Le relayage cognitif multiple-input multiple-output (MIMO) hérite l’efficacité spectrale de la radiocognitive et les systèmes de relayage MIMO, apportant ainsi des gains prometteurs en termes de débit dedonnées et de fiabilité pour les futures communications sans fil et mobiles. Dans cette thèse, nous concevons et évaluons des schémas pratiques d’émetteurs et de récepteurs pour des systèmes de relayage MIMO cognitifs qui peuvent être mis en oeuvre à moindre coût. Tout d'abord, nous réduisons l'affaiblissement du débit du mode half-duplex du relayage MIMO amplify-and-forward non-orthogonale(NAF
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Nilsson, Martin. "On Efficient Transmission Balancing Operation : Capturing the Normal State Frequency and Active Power Dynamics." Licentiate thesis, KTH, Elkraftteknik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-221221.

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In an electric power system, there will always be an electric balance. Nevertheless, System Operators (SOs) often uses the term imbalance. Here, the term imbalance refers to the difference between trades and real-time measurements. This thesis defines the term imbalance and develops a framework helping SOs in finding better decisions controlling these imbalances.  Imbalances are controlled by many decisions made at various stages before real-time. A decision can be to increase the flexibility in production and consumption. However, this is not the only decision affecting real-time balancing op
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Sen, Indranil. "Bandwidth Efficient Reduced-Complexity MT-DS-SS via Reduced Subcarrier Frequency Spacing." Ohio University / OhioLINK, 2004. http://www.ohiolink.edu/etd/view.cgi?ohiou1091107331.

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Nguyen, Tien M., Hung H. Nguyen, James Yoh, Dean J. Sklar, and Thomas Eng. "BANDWIDTH EFFICIENT MODULATION SCHEMES FOR FUTURE TT&C APPLICATIONS." International Foundation for Telemetering, 2001. http://hdl.handle.net/10150/607603.

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International Telemetering Conference Proceedings / October 22-25, 2001 / Riviera Hotel and Convention Center, Las Vegas, Nevada<br>This paper presents initial results of an investigation on bandwidth efficient waveforms for telemetry, tracking and commands (TT&C). Included in the investigation are waveforms that are currently being considered by the International Consultative Committee for Space Data Systems (CCSDS) and American Institute of Aeronautics and Astronautics (AIAA) for standards, advanced waveforms and others that have the potential to become future standards. The goal of this inv
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Books on the topic "Frequency spectrum and efficient transmission"

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Wheeler, M. L. Spread spectrum receiver electromagnetic interference (EMI) test guide. National Aeronautics and Space Administration, Marshall Space Flight Center, 1998.

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United States. Government Accountability Office. Telecommunications: Strong support for extending FCC's auction authority exists, but little agreement on other options to improve efficient use of spectrum : report to congressional committees. GAO, 2005.

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Miao, Guowang, and Guocong Song. Energy and Spectrum Efficient Wireless Network Design. Cambridge University Press, 2014.

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Miao, Guowang, and Guocong Song. Energy and Spectrum Efficient Wireless Network Design. Cambridge University Press, 2014.

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Pahl, John. Interference Analysis: Modelling Radio Systems for Spectrum Management. Wiley & Sons, Incorporated, John, 2016.

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Pahl, John. Interference Analysis: Modelling Radio Systems for Spectrum Management. Wiley & Sons, Incorporated, John, 2016.

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Pahl, John. Interference Analysis: Modelling Radio Systems for Spectrum Management. Wiley & Sons, Limited, John, 2016.

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Sims, Martin, Toby Youell, and Richard Womersley. Understanding Spectrum Liberalisation. Taylor & Francis Group, 2015.

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Understanding Spectrum Liberalisation. Taylor & Francis Group, 2015.

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Sims, Martin, Toby Youell, and Richard Womersley. Understanding Spectrum Liberalisation. Taylor & Francis Group, 2020.

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Book chapters on the topic "Frequency spectrum and efficient transmission"

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Zhang, Xiuyan, and Guobin Tao. "The Research of Adaptive Modulation Technology in OFDM System." In Proceeding of 2021 International Conference on Wireless Communications, Networking and Applications. Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-2456-9_74.

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AbstractOrthogonal frequency division multiplexing (OFDM) as a special multi-carrier transmission technology has good resistance to narrow-band interference and frequency selective fading ability. Compared with traditional modulation techniques, adaptive modulation can enhance bandwidth efficiency and system capacity. Therefore, applying adaptive modulation in OFDM systems can take full advantage of spectrum resources, and it is suitable for the high-speed and reliable mobile communication systems in the future. The purpose of this paper is to improve traditional OFDM adaptive algorithms (Hugh
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Adachi, F., A. Nakajima, K. Takeda, L. Liu, H. Tomeba, and K. Fukuda. "Frequency-Domain Equalization for Block CDMA Transmission." In Multi-Carrier Spread Spectrum 2007. Springer Netherlands, 2007. http://dx.doi.org/10.1007/978-1-4020-6129-5_1.

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Gao, Wei. "Bandwidth-Efficient Modulation with Frequency Division Multiple Access (FDMA)." In Energy and Bandwidth-Efficient Wireless Transmission. Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-44222-8_2.

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Lyu, Ling, Xinping Guan, Nan Cheng, and Xuemin Sherman Shen. "Spectrum Constrained Efficient Transmission for Industrial Network Systems." In Wireless Networks. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-26963-9_5.

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Irmer, Ralf, Wolfgang Rave, and Gerhard Fettweis. "Minimum Ber Multiuser Transmission for Spread-Spectrum Systems in Frequency-Selective Channels." In Multi-Carrier Spread-Spectrum. Springer Netherlands, 2004. http://dx.doi.org/10.1007/978-94-017-0502-8_49.

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Teich, W. G., P. Kaim, and J. Lindner. "Bandwidth and Power Efficient Digital Transmission using Sets of Orthogonal Spreading Codes." In Multi-Carrier Spread-Spectrum. Springer Netherlands, 2006. http://dx.doi.org/10.1007/1-4020-4437-2_16.

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Albers, Susanne. "Energy-Efficient Scheduling." In Lecture Notes in Computer Science. Springer Nature Switzerland, 2022. http://dx.doi.org/10.1007/978-3-031-21534-6_11.

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AbstractWe review algorithmic techniques for energy conservation in processing environments handling big data sets. Firstly, we address dynamic speed scaling, where processors can run at variable speed/frequency. The goal is to use the speed spectrum of the processors so as to minimize energy consumption while providing a desired service. Here we focus on multi-processor platforms with heterogeneous CPUs. Secondly, we examine power-down mechanisms where idle devices can be transitioned into low-power standby and sleep states. We consider power-down mechanisms in massively parallel systems, whe
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Madasamy, Sridhar, D. N. S. Ravi Kumar, T. R. Vijaya Lakshmi, M. Rajendiran, J. Rajaram, and L. Natrayan. "Recognition of dynamic spectrum allocation for MANET with energy efficient data transmission using deep learning." In Hybrid and Advanced Technologies. CRC Press, 2025. https://doi.org/10.1201/9781003559139-103.

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Lehtonen, Matti, Edris Pouresmaeil, Mika Järvinen, and Hanna Paulomäki. "Electrical Power Generation, Conversion and Transmission Systems." In Green Energy and Technology. Springer Nature Switzerland, 2025. https://doi.org/10.1007/978-3-031-69856-9_8.

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Abstract The role of electrical power systems is becoming increasingly significant in the context of decarbonization. This implies that, in addition to renewable energy production sites, the expansion of transmission infrastructure is also necessary. To date, the impact of land use associated with these systems has been relatively insignificant compared to other human land uses. However, as decarbonization efforts continue to expand, larger areas of land will be required to produce and transport renewable electricity. The objective of this Chapter is to provide students with a fundamental unde
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Li, Jiangkun, Wei Zhang, Xuliang Wu, et al. "Design and Application of γ-Ray Energy Spectrum Survey System Based on UAV." In Springer Proceedings in Physics. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-1023-6_50.

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AbstractAirborne γ-ray energy spectrum measurement is an effective method for radioactive mineral investigation and radiation environment monitoring. In recent years, with the gradual maturity of Unmanaged air vehicle (hereinafter referred to as UAV) technology, UAV airborne geophysical survey technology is becoming a hot research field. But the UAV has less load and space and is difficult to carry traditional aeronautical geophysical equipment. The miniaturization, intelligentization and automation of airborne geophysical survey instruments are the key technologies of airborne geophysical sur
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Conference papers on the topic "Frequency spectrum and efficient transmission"

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Muntaser, Akram, and Monish R. Chatterjee. "Enhancing Solar Cell Efficiency with Tunable Transverse Modal Response to Natural Light of a Linear Chiral Thin Film Array." In Bragg Gratings, Photosensitivity, and Poling in Glass Waveguides. Optica Publishing Group, 2024. http://dx.doi.org/10.1364/bgpp.2024.jtu1a.41.

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In this work, we propose the design of a chiral thin film resonator array aligned horizontally illuminated by a collimated linear, p-polarized plane wave incident normally on the array. Each thin film is analyzed via evaluating the corresponding mode spectra emerging from multiple transitions within the slab for right- and left-circular polarized (RCP and LCP) modes under variable chirality coefficients, thin film thickness and length, and substrate placement conditions as a function of the (monochromatic) mode frequency. To maximize the efficiency of solar cells, the spectral behavior of (2n+
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PAVLIOUK, A. P. "Criteria of Efficient Spectrum Use and Frequency Planning." In EMC_1988_Wroclaw. IEEE, 1988. https://doi.org/10.23919/emc.1988.10832879.

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Bykhovsky, M. A., and A. P. Pavliouk. "Efficient Utilization of Radio-Frequency Spectrum Resource by Land Mobile Service." In EMC_1986_Wroclaw. IEEE, 1986. https://doi.org/10.23919/emc.1986.10828450.

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S, Esakki Rajavel, Malathy S, Kannan P, Bathrinath V, Udayakiran D, and Santhoshwaran M. "An Efficient Access of Spectrum in Transmission Over Cognitive Radio Using Deep Learning." In 2024 International Conference on Emerging Research in Computational Science (ICERCS). IEEE, 2024. https://doi.org/10.1109/icercs63125.2024.10894790.

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R, Venugopal, Balaji C, P. R. Murali Mohan, Venkatesan Ramakrishnan, Narayanamoorthi R, and Dominic Savio A. "Efficient Boost Integrated High Frequency Inverter based WPT EV Charging system." In 2024 International Conference on Power, Energy, Control and Transmission Systems (ICPECTS). IEEE, 2024. https://doi.org/10.1109/icpects62210.2024.10780011.

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Sharma, Satish K. "Efficient Use of the Frequency Spectrum and Secure Communications in Consideration to Antenna Design." In 2025 United States National Committee of URSI National Radio Science Meeting (USNC-URSI NRSM). IEEE, 2025. https://doi.org/10.23919/usnc-ursinrsm66067.2025.10906959.

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R, Venugopal, and Jayachitra Selvaraj. "Efficient MPPT-integrated high-frequency inverter for sustainable wireless EV charging systems." In 2024 International Conference on Power, Energy, Control and Transmission Systems (ICPECTS). IEEE, 2024. https://doi.org/10.1109/icpects62210.2024.10780223.

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Hamzah, Abdulwahhab Essa, Mustafa Essa Hamzah, Intan Fatimah Sasila Ghadzali, et al. "Efficient Brillouin frequency shift extraction method employing Brillouin gain spectrum fitting in the distributed BOTDA fiber sensor." In 2024 IEEE 10th International Conference on Photonics (ICP). IEEE, 2024. https://doi.org/10.1109/icp60542.2024.10877252.

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Zhang, Ruofan, Lixia Xi, Xulun Zhang, et al. "First Demonstration of 113 Gb/s Full-spectrum Modulated Nonlinear Frequency Division Multiplexing Transmission System." In CLEO: Science and Innovations. Optica Publishing Group, 2022. http://dx.doi.org/10.1364/cleo_si.2022.sm2j.5.

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We demonstrate, for the first time, a record 113 Gb/s (spectral efficiency of 2.8 bits/s/Hz) full-spectrum modulated nonlinear frequency division transmission system with 256 nonlinear subcarriers for continuous spectrum and 11 eigenvalues for discrete spectrum.
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Dong, Liang. "Spectral- and energy-efficient transmission over frequency-orthogonal channels." In 2016 IEEE Online Conference on Green Communications (OnlineGreenComm). IEEE, 2016. http://dx.doi.org/10.1109/onlinegreencom.2016.7805400.

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