Academic literature on the topic 'QAM-OFDM'

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Journal articles on the topic "QAM-OFDM"

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Rakhmania, Amalia Eka, Akhmad Mukhibuddin Harvinanda, Hudiono Hudiono, Aad Hariyadi, Hadiwiyatno, and Mochammad Taufik. "Analisis Kinerja Sistem Modulasi Downlink LTE dan 5G pada Kanal AWGN Berbasis MATLAB." Techné : Jurnal Ilmiah Elektroteknika 22, no. 2 (2023): 217–40. http://dx.doi.org/10.31358/techne.v22i2.341.

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Pada penelitian ini dilakukan analisis performansi downlink LTE dan 5G dengan menggunakan MATLAB. Penelitian ini bertujuan untuk menganalisis perbandingan kinerja teknik modulasi QPSK, 16-QAM, dan 64-QAM yang digunakan pada downlink LTE dan teknik modulasi QPSK, 16-QAM, 64-QAM, dan 256-QAM pada downlink 5G yang melalui kanal AWGN untuk mengetahui nilai BER pada teknik modulasi yang digunakan. Teknik multiplexing yang digunakan adalah OFDM dan CP-OFDM untuk downlink LTE dan CP-OFDM untuk downlink 5G dengan variasi cyclic prefix yang digunakan adalah kategori ”normal”. Pada downlink LTE, kinerja
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PAMBUDI, AFIEF DIAS, SUHARTONO TJONDRONEGORO, and HEROE WIJANTO. "Deteksi Automatis Skema Modulasi Sinyal OFDM menggunakan Ciri Statistik dan Klasifikasi PSO." ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika 3, no. 2 (2015): 133. http://dx.doi.org/10.26760/elkomika.v3i2.133.

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ABSTRAKPengenalan format modulasi dari sinyal yang dideteksi merupakan salah satu bahasan penting pada sistem intelligent receiver yang digunakan untuk aplikasi di bidang militer maupun komersial. Oleh karena itu, pada penelitian ini dilakukan klasifikasi skema modulasi pada sinyal OFDM yaitu QPSK, 16-QAM dan 64-QAM. Sinyal OFDM tersebut disimulasikan melewati kanal frequency selective fading dan additive white gaussian noise. Sistem klasifikasi yang dibuat menggunakan ekstraksi ciri statistik dan pengklasifikasi berupa diagram keputusan dengan threshold yang dioptimasi menggunakan algoritma p
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Guo, Jianzhong, Jinpeng Xiao, Jing Chen, et al. "Performance Analysis of LDPC-Coded OFDM in Underwater Wireless Optical Communications." Photonics 10, no. 3 (2023): 330. http://dx.doi.org/10.3390/photonics10030330.

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The performance of Low-Density Parity-Check (LDPC)-coded Orthogonal Frequency Division Multiplexing (OFDM) is investigated over turbulence channels in underwater wireless optical communications (UWOC). The relation between the bit error ratio (BER) and parameters such as the scintillation coefficient, signal-to-noise ratio (SNR), length of LDPC code, and order of OFDM is quantified by simulation. Results show that while the OFDM with subcarrier quadrature amplitude modulation (QAM-OFDM) has slightly better anti-turbulence performance than the OFDM with subcarrier phase shift keying modulation
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Yadav, R. Meghana. "TURBO Coded OFDM Improves BER Performance Evaluation for Digital Video Broadcasting." International Journal for Research in Applied Science and Engineering Technology 9, no. 9 (2021): 1950–54. http://dx.doi.org/10.22214/ijraset.2021.38220.

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Abstract: Turbo coded Orthogonal Frequency Division Multiplexing (OFDM) is attractive technique for high data rate in wireless communication applications, mobile communications (4G) and Wireless Metropolitan Area Networks (WMAN) and Digital Video Broadcasting (DVB). The performance of TURBO Coded 16 QAM and 64 QAM schemes with OFDM for high speed data rate applications is compared which is used in digital video broadcasting. BER analysis is used to assess the system's performance. Due to the high data rate of 64 QAM, attaining BER of ૚૙ି૝ requires Eb/No of 0.9 dB in 16QAM, whereas obtaining BE
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Uppal, Sabhyata, Sanjay Sharma, and Hardeep Singh. "Analytical Investigation on Papr Reduction in OFDM Systems Using Golay Codes." Journal of Electrical Engineering 65, no. 5 (2014): 289–93. http://dx.doi.org/10.2478/jee-2014-0046.

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Abstract Orthogonal frequency division multiplexing (OFDM) is a common technique in multi carrier communications. One of the major issues in developing OFDM is the high peak to average power ratio (PAPR). Golay sequences have been introduced to construct 16-QAM and 256-QAM (quadrature amplitude modulation) code for the orthogonal frequency division multiplexing (OFDM), reducing the peak-to-average power ratio. In this paper we have considered the use of coding to reduce the peakto- average power ratio (PAPR) for orthogonal frequency division multiplexing (OFDM) systems. By using QPSK Golay seq
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Aksara, Deschie Tri, Alfredo Bayu Satriya, and Dodi Setiabudi. "ANALISIS PERBANDINGAN BER DAN PAPR DALAM TRANSMISI CITRA PADA SISTEM 4G LTE." Jurnal Arus Elektro Indonesia 6, no. 1 (2020): 17. http://dx.doi.org/10.19184/jaei.v6i1.16339.

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Teknologi telekomunikasi saat ini menuntut penggunaan data rate yang tinggi dalam proses pengiriman data. OFDM merupakan teknologi multiplexing yang didasarkan pada penyebaran data yang dimodulasikan pada kecepatan data rendah. OFDM memiliki keunggulan tahan terhadap multipath delay spread, frequency selective fading, serta modulasi dan demodulasi yang efisien. Penelitian ini bertujuan untuk mengetahui karakteristik BER dan PAPR terhadap SNR dan mengetahui perbandingan kinerja teknik modulasi QPSK, 16-QAM dan 64-QAM. Penelitian dijalankan dengan melakukan simulasi pengiriman citra melalui kana
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Zhang, Xue Yi, and Shuang Le Zhao. "Simulation and Study for the Optical OFDM Communication." Applied Mechanics and Materials 530-531 (February 2014): 729–33. http://dx.doi.org/10.4028/www.scientific.net/amm.530-531.729.

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This paper gives a theoretical basis principle and structure of OFDM. The O-OFDM has three parts including transmitter, receiver and fiber. The main and key component is IFFT and FFT block. And then a basic direct detection optical-OFDM system (DO-OFDM) is designed and simulated by the software Optisystem. The performance of the system is viewed by the visualizer of the software compared to the RZ, OFDM and QAM modulation system. The result shows that the OFDM system is better than conventional serial modulation schemes like RZ, QAM.
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Hussein, A. Leftah, and N. Alminshid Huda. "Channel capacity and performance evaluation of precoded MIMO-OFDM system with large-size constellation." International Journal of Electrical and Computer Engineering (IJECE) 9, no. 6 (2019): 5024–30. https://doi.org/10.11591/ijece.v9i6.pp5024-5030.

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Multiple input-multiple output (MIMO) is a multipath diversity exploring approach which is emerged with orthogonal frequency division multiplexing (OFDM) to produce MIMO-OFDM that is widely used in wireless communications. This paper presents a discrete Hartley transform (DHT) precoded MIMO-OFDM system over multipath frequency-selective fading channel with large-size quadrature amplitude modulation (16-QAM, 64-QAM and 256-QAM). A mathematical models for the BER and channel capacity over mutlipath fading channels are also derived in this paper. Average Bit-error-rate (BER) and channel capacity
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Vucic, Desimir. "Cyclic spectral analysis of OFDM/QAM modulation using stochastic matrix-based method." Facta universitatis - series: Electronics and Energetics 16, no. 3 (2003): 343–53. http://dx.doi.org/10.2298/fuee0303343v.

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The cyclostationarity of the OFDM/QAM signals induced by the use of cyclic prefix or pulse shaping is the key to blind synchronization, channel identification and equalization in these systems. Therefore, continuous-time and discrete-time spectral correlation characterization of the pulse shaping OFDM/QAM signals is performed by a matrix-based stochastic method based on Markov chain signal representation. Exact analytical expression for the cyclic spectrum of the continuous-time OFDM/QAM signal is derived applying the proposed method, the characteristic cyclic features according to the cyclic
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Leftah, Hussein A., and Huda N. Alminshid. "Channel capacity and performance evaluation of precoded MIMO-OFDM system with large-size constellation." International Journal of Electrical and Computer Engineering (IJECE) 9, no. 6 (2019): 5024. http://dx.doi.org/10.11591/ijece.v9i6.pp5024-5030.

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<p>Multiple input-multiple output (MIMO) is a multipath diversity exploring approach which is emerged with orthogonal frequency division multiplexing (OFDM) to produce MIMO-OFDM that is widely used in wireless communications. This paper presents a discrete Hart-ley transform (DHT) precoded MIMO-OFDM system over multipath frequency-selective fading channel with large-size quadrature amplitude modulation (16-QAM, 64-QAM and 256-QAM). A mathematical models for the BER and channel capacity over mutlipath fading channels are also derived in this paper. Average Bit-error-rate (BER) and channel
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Dissertations / Theses on the topic "QAM-OFDM"

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Selvakumar, Vinodhkumar, Samuel Nemalladinne, and Premkumar Arumugam. "Analysis of LTE Radio Frame by eliminating Cyclic Prefix in OFDM and comparison of QAM and Offset-QAM." Thesis, Linnéuniversitetet, Institutionen för datavetenskap, fysik och matematik, DFM, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-21602.

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Spectral efficiency is the key factor for the development of future wireless communications. Orthogonal Frequency Division Multiple Access (OFDMA) is the multiple access technology used at physical layer of latest wireless communication technologies. Anything on the improvement or overcoming the disadvantage of the present system will be considered for the future wireless systems. Long Term Evolution (LTE) is one of the 4th generation wireless communications and it is taken as the reference system in this thesis. The main concern of this thesis is to analyze the LTE radio frame. We designed an
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Elrais, Mostafa, Betelhem Mengiste, Bibek Guatam, and Eugene Damiba. "Variable Rate OFDM Performance on Aeronautical Channels." International Foundation for Telemetering, 2013. http://hdl.handle.net/10150/579703.

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ITC/USA 2013 Conference Proceedings / The Forty-Ninth Annual International Telemetering Conference and Technical Exhibition / October 21-24, 2013 / Bally's Hotel & Convention Center, Las Vegas, NV<br>This paper shows the design and testing of a test bed at Morgan State University as part of the development of a Link Dependent Adaptive Radio (LDAR). It shows the integration of variable rate QAM/OFDM modulation and a variable rate Punctured Convolutional Coder. It also shows a dynamic aeronautical channel simulator developed to capture the dynamics of these channels. Performance results are show
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Assegu, Wannaw, and Ibrahim Fofanah. "Performance of Turbo Coded OFDM Modulation over an Aeronautical Channel." International Foundation for Telemetering, 2012. http://hdl.handle.net/10150/581818.

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The main objectives of Integrated Network Enhanced Telemetry (iNET) are increased data rate and improved spectral efficiency. In this paper we propose the transmission scheme for the physical layer to be coded Quadrature Amplitude Modulation-Orthogonal Frequency Division Multiplexing (QAM OFDM) which enables high data rates and spectrum efficiency. However in high mobility scenarios, the channel is time-varying the receiver design is more challenging. In this paper pilot-assisted channel estimation is used at the receiver, with turbo coding to enhance the performance; while the effect of inter
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Assegu, Wannaw, and Ibrahim Fofanah. "Performance of Coded 16-QAM OFDM Modulation with Equalizer Over an Aeronautical Channel." International Foundation for Telemetering, 2011. http://hdl.handle.net/10150/595639.

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ITC/USA 2011 Conference Proceedings / The Forty-Seventh Annual International Telemetering Conference and Technical Exhibition / October 24-27, 2011 / Bally's Las Vegas, Las Vegas, Nevada<br>The main objectives of iNET (Integrated Network Enhanced Telemetry) are increased data rate and improved spectral efficiency [1]. In this paper we propose that transmission scheme for the physical layer is coded 16-QAM OFDM (Quadrature Amplitude Modulation-Orthogonal Frequency Division Multiplexing) which enables high data rate and spectrum efficiency. However in high mobility scenarios, where the channel i
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Corrêa, Willian Câmara. "Estudos de sistemas OFDM para comunicações ópticas." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/18/18155/tde-19112012-151028/.

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A utilização, em sistemas de comunicações ópticas, de formatos de modulação digitais é vista, atualmente, como uma forma promissora de aumentar a eficiência espectral, frente aos diversos efeitos de degradação do sinal em fibra óptica, sem alterar a infraestrutura já implantada. É neste contexto que surge a técnica OFDM (orthogonal frequency division multiplexing) que estabelece sobreposição espectral das subportadoras e, desta forma, permite a transmissão dos dados em forma multiplexada com grande eficiência espectral. No presente trabalho, foi proposta a simulação da técnica OFDM com modulaç
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Kadlček, Václav. "Modelování silové sítě pro datovou komunikaci." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2009. http://www.nusl.cz/ntk/nusl-218194.

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Thesis deals with problems PLC (Power Line Communication) communication. It is aimed at drawing up a suitable model for testing power network PLC communication. The reader is aware of at the beginning of work with the basic principles of PLC systems, distribution and use in communication networks. Another part of the work deals with different types of interference, which occur in power networks and ways to defend against such interference. For example, an appropriate choice of modulation and coding relevant. As a source of interference in the proposed model is used AWGN channel (Additive White
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Chovaneček, Libor. "Simulace přenosu DVB-C2." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2011. http://www.nusl.cz/ntk/nusl-219130.

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The theme of this thesis is simulation of DVB-C2 transmission. The first part of this thesis is focused mainly on theory, where it describes differences between digital and analog television transmission. The project also explains principle of operation DVB-C and DVB-C2 systems with focus on channel coding a modulation. Application for simulation of DVB-C2 transmission, which is developed in the MATLAB environment is described in the second part. The last part of this thesis includes results of simulations of DVB-C2 transmission and their comparison with measured values of DVB-C transmission.
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Hamada, Adam. "Využití moderních vícetónových modulací v bezdrátových sítích." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2013. http://www.nusl.cz/ntk/nusl-220306.

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The main aim of this master's thesis was the create function models of wireless network technologies using the modern multitones modulation like is PFDM and FMT. This work is realised in Matlab – Simulink enviroment and models are tested in development kit. Development kit is universal software defined radio developer by Ettus.
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Prieto, Alberto Pastor. "Simulation and evaluation of a DVB System using Simulink (Vol. II)." Thesis, Linköping University, Department of Electrical Engineering, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-2723.

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<p>DVB (Digital Video Broadcasting) is the television digital system. It's however much more than a simple replacement for existing analogue television transmission, this system has many advantages such as picture quality and allows you a range of new features and services including subtitling, multiple audio tracks, interactive content, multimedia content. </p><p>The system is based in the OFDM technology, which allows DVB system to exploit the spectrum frequencies in a better way, saving spectrum, but OFDM has an important drawback that is the peak to average power ratio problem. OFDM is bas
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Abu-alhiga, Rami. "Novel feedback and signalling mechanisms for interference management and efficient modulation." Thesis, University of Edinburgh, 2010. http://hdl.handle.net/1842/4632.

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In order to meet the ever-growing demand for mobile data, a number of different technologies have been adopted by the fourth generation standardization bodies. These include multiple access schemes such as spatial division multiple access (SDMA), and efficient modulation techniques such as orthogonal frequency division multiplexing (OFDM)-based modulation. The specific objectives of this theses are to develop an effective feedback method for interference management in smart antenna SDMA systems and to design an efficient OFDM-based modulation technique, where an additional dimension is added t
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Books on the topic "QAM-OFDM"

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Berber, Stevan. Discrete Communication Systems. Oxford University Press, 2021. http://dx.doi.org/10.1093/oso/9780198860792.001.0001.

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The book present essential theory and practice of the discrete communication systems design, based on the theory of discrete time stochastic processes, and their relation to the existing theory of digital communication systems. Using the notion of stochastic linear time invariant systems, in addition to the orhogonality principles, a general structure of the discrete communication system is constructed in terms of mathematical operators. Based on this structure, the MPSK, MFSK, QAM, OFDM and CDMA systems, using discrete modulation methods, are deduced as special cases. The signals are processe
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Book chapters on the topic "QAM-OFDM"

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Pandey, Sarthak, Manisha Bharti, and Ayush Kumar Agrawal. "Analysis of M-ary QAM-Based OFDM Systems in AWGN Channel." In Lecture Notes in Electrical Engineering. Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-1476-7_22.

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Pinchon, D., C. Siclet, and P. Siohan. "A Design Technique for Oversampled Modulated Filter Banks and OFDM/QAM Modulations." In Telecommunications and Networking - ICT 2004. Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-540-27824-5_78.

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Durga Prasad, T., K. V. Kumar, P. Raju, R. Koteswara Rao Naik, and V. Santosh Kumar. "Comparison of PAPR of OFDM Systems Using CDF Plots for QAM and QPSK." In Communications in Computer and Information Science. Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-29216-3_83.

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Sikri, Gaurav, and Rajni. "Peak to Average Power Ratio Reduction in OFDM System over PAM, QAM and QPSK Modulation." In Advances in Computing and Information Technology. Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-31513-8_69.

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Goto, Yuichiro, Akihiro Yamakita, and Fumiaki Maehara. "Simple Series Form Formula of BER Performance of M-ary QAM/OFDM Signals Over Nonlinear Fading Channels." In Lecture Notes in Electrical Engineering. Springer Netherlands, 2009. http://dx.doi.org/10.1007/978-90-481-2530-2_27.

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Singh, Mehtab, and Jyoteesh Malhotra. "Study of Spectral-Efficient 400 Gbps FSO Transmission Link Derived from Hybrid PDM-16-QAM With CO-OFDM." In Proceedings of the International Conference on Paradigms of Computing, Communication and Data Sciences. Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-15-7533-4_33.

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Al-Awadi, Adnan Ali Kadhim, and Husam Noaman Mohamed Ali. "Enhancement Optical Fiber Data Rate by Using 8 Port Dense Wide Division Multiplexing OF 256- Quadrature Amplitude Modulation (QAM) and Orthogonal Frequency Division Multiplexing (OFDM) Dual Polarization Technique." In Communications in Computer and Information Science. Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-72287-5_6.

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Yang, Pengfei, and Xue Chen. "Simple Receiving Scheme Based on Balanced Detection for Half-Cycled SSB DD-OFDM Signal." In Machine Learning and Artificial Intelligence. IOS Press, 2020. http://dx.doi.org/10.3233/faia200797.

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In this letter, we proposed a simple balanced-detection reception scheme for the half-cycled single-sideband direct-detected optical orthogonal frequency division multiplexing (HSSB DD-OFDM) signal with decreased guard band. By employing this scheme, each entire OFDM symbol can be recovered perfectly, while the signal-to-signal beat interference (SSBI) can be eliminated, the guard band can be reduced greatly and the tolerance to phase noise induced inter-channel interference (PN-ICI) and potential benefit of low peak to average power (PAPR) are retained. The simulation results demonstrate that
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"Adaptive QAM Optimisation for OFDM and MCCDMA." In Quadrature Amplitude Modulation. IEEE, 2011. http://dx.doi.org/10.1109/9780470010594.ch22.

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Nandhini Devi R, Leones Sherwin VimalrajS, and Lydia J. "Improvement of Multipath Channel Performance for Optical MIMO-OFDM in LED Modulation with Fully Generalized Spatial-Frequency." In Advances in Parallel Computing. IOS Press, 2021. http://dx.doi.org/10.3233/apc210085.

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This paper suggests a scheme to generalize the idea of LED index modulation concept by using the spatial multiplexing principle to relay complex OFDM signals through various channels such as AWGN, Rayleigh and Rician by splitting these signals into their real-imaginary and positive-negative components. In order to combat ISI as well as to increase the channel capacity. The MIMO-OFDM efficiency analysis, taking into account the constraint of the forward current of the LED is extracted. The accuracy of the theoretical results is verified by comparing the Bit Error Ratio (BER) reduction and impro
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Conference papers on the topic "QAM-OFDM"

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Dass, Devika, Anil Raj Gautum, Lakshmi Narayanan Venkatasubramani, et al. "Hybrid Digital PAM and 60 GHz Analog Radio over Fiber Optical Spectrum as a Service Applications." In Photonic Networks and Devices. Optica Publishing Group, 2024. http://dx.doi.org/10.1364/networks.2024.neth1c.3.

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We experimentally study transmission of digitally multiplexed 15 GBd PAM-8, wideband 16-QAM OFDM (WiGig) and narrowband 64-QAM OFDM (5G NR) waveforms over a 10 km fiber, undergoing up-conversion to 60 GHz and achieving FEC limited performance.
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Jahan, B., M. Lanoiselee, G. Degoulet, and R. Rabineau. "Full Synchronization Method for OFDM/OQAM and OFDM/QAM Modulations." In 2008 IEEE 10th International Symposium on Spread Spectrum Techniques and Applications (ISSSTA). IEEE, 2008. http://dx.doi.org/10.1109/isssta.2008.69.

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Tanaka, Kazuki, Shinji Nimura, and Ryo Inohara. "PtMP Multi-IF-Over-Fiber Systems Using Remotely Shared Local Oscillators for Plural Antenna Sites." In Optical Fiber Communication Conference. Optica Publishing Group, 2024. http://dx.doi.org/10.1364/ofc.2024.th2a.37.

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A multi-channel intermediate frequency-over-Fiber (IFoF) system with remotely shared local oscillators (LO) is proposed. IF-to-RF conversion by a shared LO is experimentally verified meeting the 3GPP error vector magnitude (EVM) criterion for 64-QAM OFDM signal.
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Weng, Zu-Kai, Pham Tien Dat, Atsushi Kanno, Tetsuya Kawanishi, and Kouichi Akahane. "Delay Compensated Quad-level Delta-sigma Modulation Dual-color DRoF System for Beyond 5G Mobile Fronthaul." In Optical Fiber Communication Conference. Optica Publishing Group, 2023. http://dx.doi.org/10.1364/ofc.2023.w2a.34.

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We demonstrated a high-performance dual-color B5G DRoF system using delay compensation. A quad-level 6-Gbit/s 64-QAM OFDM signal was successfully transmitted over the proposed system, showing a much better performance compared to the conventional 1-bit system.
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Dat, Pham Tien, Isao Morohashi, Keizo Inagaki, et al. "Simple and High-Speed Fiber-Terahertz-Fiber Bridge System in 355-GHz Band using Photonics-Enabled Receiver." In CLEO: Science and Innovations. Optica Publishing Group, 2023. http://dx.doi.org/10.1364/cleo_si.2023.sth1m.7.

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We demonstrate a simple fiber-terahertz-fiber system in the 355-GHz band using a stable optical frequency comb generation and photonics-enabled receiver. We successfully transmitted a 16-QAM OFDM signal with a line rate of 60 Gb/s over the system.
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Lin, Chun-Cheng, Ying-Pyng Lin, Po-Yi Wu, Hai-Han Lu, Tai-Wei Jhang, and Cheng-Ling Ying. "A hybrid lightwave subcarrier CATV/16-QAM/16-QAM OFDM transmission system." In Asia Communications and Photonics Conference. OSA, 2013. http://dx.doi.org/10.1364/acp.2013.ath3g.4.

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Lin, Chun-Cheng, Ying-Pyng Lin, Po-Yi Wu, Hai-Han Lu, Tai-Wei Jhang, and Cheng-Ling Ying. "A hybrid lightwave subcarrier CATV/16-QAM/16-QAM OFDM transmission system." In Asia Communications and Photonics Conference. OSA, 2013. http://dx.doi.org/10.1364/acpc.2013.ath3g.4.

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Alhalabi, Mahmoud. "Renksiz Verici Olarak RSOA Kullanan 1.6 Tbps’lik OFDM WDM-PON Sistemi." In 8th International Students Science Congress. ULUSLARARASI ÖĞRENCİ DERNEKLERİ FEDERASYONU (UDEF), 2024. https://doi.org/10.52460/issc.2024.027.

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Bu çalışmada, Yoğunluk Modülasyonlu/Doğrudan Algılamalı Optik dikgen frekans bölmeli çoğullama (IM/DD-OFDM) kullanan çift yönlü bir Dalga Boyu Bölmeli Çoğullama Pasif Optik Ağ (WDM-PON) Optisystem uygulamasının üzerinden simüle edilip uygulanmaktadır. Optik WDM-OFDM sisteminde, sırasıyla 100 Gbps’lik 16 Dördün Genlik Modülasyonu (16-QAM) aşağı akış ve 5 Gbps’lik Açma-Kapama anahtarlama (OOK) yukarı akış dalga boyları kullanılmaktadır. Aşağı akış sinyalini yeniden kullanan ve yukarı akış sinyalini üreten basit bir Yansıtıcı Yarı İletken Optik Amplifikatör (RSOA) renksiz verici kullanılarak uygu
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Cheng, Chih-Hsien, Yi-Ze Lee, Yi-Chien Wu, Wei-Chun Wang, Huai-Yung Wang, and Gong-Ru Lin. "Optical Wireless HDMI with Uncooled Violet-Blue Laser Diode." In Conference on Lasers and Electro-Optics/Pacific Rim. Optica Publishing Group, 2022. http://dx.doi.org/10.1364/cleopr.2022.p_cm9_03.

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Abstract:
Optical wireless HDMI transceiver using uncooled 12-mW violet laser diode as Tx with f-3dB=4GHz and p-i-n photodiode as Rx with f-3dB=7GHz is demonstrated to enable 26.4-Gbit/s 64-QAM OFDM data and 2K×1K HDMI (1080P@60fps) video transmission.
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Zhao, Jian, and A. D. Ellis. "Enhanced Dispersion Tolerance of Coherent Offset-QAM OFDM over Conventional OFDM." In Optical Fiber Communication Conference. OSA, 2014. http://dx.doi.org/10.1364/ofc.2014.tu2g.2.

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