Log in

Relevant bibliographies by topics / Multicarrier communication systems / Journal articles

To see the other types of publications on this topic, follow the link: Multicarrier communication systems.

Journal articles on the topic 'Multicarrier communication systems'

Author: Grafiati

Published: 11 December 2022

Last updated: 26 January 2023

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Multicarrier communication systems.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Irfan, Mohammad, and Soo Young Shin. "Subcarrier Index; As Information Carrying Domain for Multicarrier Communication Systems." Journal of the Institute of Industrial Applications Engineers 3, no. 3 (July 25, 2015): 121–25. http://dx.doi.org/10.12792/jiiae.3.121.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Redfern, A. J. "Receiver window design for multicarrier communication systems." IEEE Journal on Selected Areas in Communications 20, no. 5 (June 2002): 1029–36. http://dx.doi.org/10.1109/jsac.2002.1007383.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Del re, E., and R. Fantacci. "Multicarrier demodulator for digital satellite communication systems." IEE Proceedings I Communications, Speech and Vision 136, no. 3 (1989): 201. http://dx.doi.org/10.1049/ip-i-2.1989.0029.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Yue, X., and H. H. Fan. "Near-Far Resistance of Multicarrier CDMA Communication Systems." IEEE Signal Processing Letters 11, no. 2 (February 2004): 212–15. http://dx.doi.org/10.1109/lsp.2003.821738.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Esmaiel, Hamada, and Haixin Sun. "Energy Harvesting for TDS-OFDM in NOMA-Based Underwater Communication Systems." Sensors 22, no. 15 (August 1, 2022): 5751. http://dx.doi.org/10.3390/s22155751.

Full text

Abstract:

Non-orthogonal multiple access (NOMA) is considered a promising multiple access technique for fifth generation (5G) mobile networks and tactical internet due to its high spectral efficiency. Thanks to the high spectral efficiency of NOMA, it can be a strong candidate suitable for the limited channel bandwidth of underwater acoustic communication. The NOMA transmitter is employing superposition coding (SC). The NOMA receiver is based on the successive interference cancellation (SIC) technique. The multicarrier NOMA adopts orthogonal frequency division multiplexing (OFDM) as a multicarrier modulation (MCM) technique; however, conventional cyclic prefix OFDM (CP-OFDM) and zero padding (ZP-OFDM) have inefficient spectral efficiency. Thanks to efficient synchronization and high energy-spectral efficiency of the time-division synchronization OFDM (TDS-OFDM), it is a significant attractive candidate for underwater multicarrier communication. However, wasting the power transmission of long guard intervals in the battery-based underwater communication is represented as one of the TDS-OFDM main drawbacks. Harvesting energy and improving the energy efficiency of acoustic-based TDS-OFDM-NOMA represent high achievement goal battery recharging challenges due to the ocean environment. This paper proposes time switching simultaneous wireless information and power transfer (TS-SWIPT) to harvest the energy of transmitted power over the guard interval in the TDS-OFDM-NOMA scheme. The proposed energy harvested scheme harvests the energy from the wasted power in the long guard interval and improves the energy efficiency of the TDS-OFDM multicarrier scheme. This study demonstrates the superiority of the proposed TDS-OFDM-NOMA over the underwater acoustic channel by revealing high energy efficiency, high spectral efficiency, better bit error rate performance, and high system data throughput.

APA, Harvard, Vancouver, ISO, and other styles

6

Jiang, Lei, Haijian Zhang, Shuai Cheng, Hengwei Lv, and Pandong Li. "An Overview of FIR Filter Design in Future Multicarrier Communication Systems." Electronics 9, no. 4 (March 31, 2020): 599. http://dx.doi.org/10.3390/electronics9040599.

Full text

Abstract:

Future wireless communication systems are facing with many challenges due to their complexity and diversification. Orthogonal frequency division multiplexing (OFDM) in 4G cannot meet the requirements in future scenarios, thus alternative multicarrier modulation (MCM) candidates for future physical layer have been extensively studied in the academic field, for example, filter bank multicarrier (FBMC), generalized frequency division multiplexing (GFDM), universal filtered multicarrier (UFMC), filtered OFDM (F-OFDM), and so forth, wherein the prototype filter design is an essential component based on which the synthesis and analysis filters are derived. This paper presents a comprehensive survey on the recent advances of finite impulse response (FIR) filter design methods in MCM based communication systems. Firstly, the fundamental aspects are examined, including the introduction of existing waveform candidates and the principle of FIR filter design. Then the methods of FIR filter design are summarized in details and we focus on the following three categories—frequency sampling methods, windowing based methods and optimization based methods. Finally, the performances of various FIR design methods are evaluated and quantified by power spectral density (PSD) and bit error rate (BER), and different MCM schemes as well as their potential prototype filters are discussed.

APA, Harvard, Vancouver, ISO, and other styles

7

D, Kumar, Anilkumar R, Vijayakumar C N, and S. Bhargavi. "Performance analysis of direct detection optical OFDM systems." International Journal of Engineering & Technology 7, no. 1.9 (March 1, 2018): 123. http://dx.doi.org/10.14419/ijet.v7i1.9.9747.

Full text

Abstract:

Orthogonal frequency division multiplexing (OFDM) is a multicarrier modulation technique, in which the data information is carried over many lower rate subcarriers. This technique is started effectively using in both line communication and wireless communication systems. This modulation technique has been actively started in the field of light wave communication called optical OFDM (OOFDM) system. OOFDM is a multicarrier modulation technique; it is used to overcome the problem of inter-symbol interference due to the chromatic dispersion and polarization mode dispersion of the fiber channel. In this paper, we have done simulation on direct detection optical OFDM (DDOOFDM) system with data rate of 10Gbps and measuring performance analysis of DDOOFDM system with respect to the received optical power and various full width half maximum value of the continuous wave laser source. This analysis is simulated using RSOFT Design Group OptSim Version-5.2.

APA, Harvard, Vancouver, ISO, and other styles

8

Grishin, I., and A. Kalinkina. "Review of the Multicarrier Modulation Techniques used in Modern Wireless Communications." Telecom IT 8, no. 2 (June 2020): 55–66. http://dx.doi.org/10.31854/2307-1303-2020-8-2-55-66.

Full text

Abstract:

This article provides an overview of the technologies for generating radio signals, such as orthogonal frequency division multiplexing and its modifications: universal filtered multicarrier and filter bank multi-carrier currently used in wireless communication networks. Subject of research: methods of multicar-rier modulation. Main results: Overview of modern methods of forming multicarrier signals in radio communication systems. A number of computational experiments have been performed to compare the characteristics of signal localization, peak-to-average ratios and spurious emissions. Practical implica-tions: the results can be used in choosing the type of modulation in the case of the development of digi-tal radio communication systems.

APA, Harvard, Vancouver, ISO, and other styles

9

DaSilva, V. M., and E. S. Sousa. "Multicarrier orthogonal CDMA signals for quasi-synchronous communication systems." IEEE Journal on Selected Areas in Communications 12, no. 5 (June 1994): 842–52. http://dx.doi.org/10.1109/49.298058.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Hamad, Nasser, Maen Takruri, and Mahdi Barhoush. "Wavelet based multicarrier CDMA system." International Journal of Electrical and Computer Engineering (IJECE) 9, no. 4 (August 1, 2019): 3051. http://dx.doi.org/10.11591/ijece.v9i4.pp3051-3059.

Full text

Abstract:

Emerging demands for high data rate services, high user capacity and low power consumption systems are the key driving forces behind the continued technology evolution in wireless communications. Multicarrier Modulation techniques support variety of services requiring different data rates and different QoS (quality of service) levels. Multicarrier CDMA is a wireless communication system that can be seen as a combination of direct sequence CDMA and Orthogonal Frequency Division Multiplexing techniques. The main benefits of this system are its robustness to inter symbol interference and multipath propagation in fading channels. This paper studies and simulates the Discrete Wavelet Transform based Multicarrier CDMA and compares it with the Discrete Fourier Transform based one using different number of sub carriers, and different modulation techniques. The results shows that the Wavelet based system outperforms the Fourier based one since it has lower bit error rate BER performance, lower peak to verage power ratio PAPR and higher user capacity.

APA, Harvard, Vancouver, ISO, and other styles

11

Ramadhan, Ali J. "Overview and Comparison of Candidate 5G Waveforms: FBMC, UFMC and F-OFDM." International Journal of Computer Network and Information Security 14, no. 2 (April 8, 2022): 27–38. http://dx.doi.org/10.5815/ijcnis.2022.02.03.

Full text

Abstract:

The fifth generation (5G) technology standard, utilizing the Internet of Things, promises enhanced communication systems. However, the efficiency expected from such systems entails significant requirements, such as higher data rates and flexibility of the lowest 5G layer. Meeting these requirements in subsequent wireless communication systems is highly dependent on the use of waveforms capable of efficiently enabling multiple access. In other words, proper waveforms determine the effective handling of diverse traffic within a given band. In this study, four candidate multicarrier waveforms, namely filtered orthogonal frequency division multiplexing, filter bank multicarrier, universal filtered multicarrier, and orthogonal frequency division multiplexing, which is currently used in 4G systems, are compared based on multiple parameters. MATLAB simulation results indicate that the waveforms significantly improved spectrum localization and provided appropriate spectrum fragmentation. As these waveforms can mix diverse traffic specifications, they handle the problem of time-frequency synchronization effectively. Therefore, these new waveforms exhibit significant potential in terms of orthogonality and synchronicity and can support numerous users without dropping signals. In addition, they support all applications and scenarios related to multiple-input and multiple-output. The obtained simulation results confirm the suitability of such waveforms for 5G applications and systems.

APA, Harvard, Vancouver, ISO, and other styles

12

Litsyn, S., and A. Yudin. "Discrete and Continuous Maxima in Multicarrier Communication." IEEE Transactions on Information Theory 51, no. 3 (March 2005): 919–28. http://dx.doi.org/10.1109/tit.2004.842636.

Full text

APA, Harvard, Vancouver, ISO, and other styles

13

Katselis, Dimitrios, Cristian R. Rojas, and Håkan Hjalmarsson. "Application-Oriented Least Squares Experiment Design in Multicarrier Communication Systems." IFAC Proceedings Volumes 46, no. 11 (2013): 74–79. http://dx.doi.org/10.3182/20130703-3-fr-4038.00076.

Full text

APA, Harvard, Vancouver, ISO, and other styles

14

Hasan, Fadhil Sahib, and Noor Qaddoori Lateef. "Performance comparison of multicarrier communication systems over doubly-selective channels." Periodicals of Engineering and Natural Sciences (PEN) 9, no. 3 (July 1, 2021): 12. http://dx.doi.org/10.21533/pen.v9i3.2075.

Full text

APA, Harvard, Vancouver, ISO, and other styles

15

Al-Dharrab, Suhail, Ali Muqaibel, and Murat Uysal. "Performance of multicarrier cooperative communication systems over underwater acoustic channels." IET Communications 11, no. 12 (August 24, 2017): 1941–51. http://dx.doi.org/10.1049/iet-com.2017.0037.

Full text

APA, Harvard, Vancouver, ISO, and other styles

16

Krongold, B. S., K. Ramchandran, and D. L. Jones. "Computationally efficient optimal power allocation algorithms for multicarrier communication systems." IEEE Transactions on Communications 48, no. 1 (2000): 23–27. http://dx.doi.org/10.1109/26.818869.

Full text

APA, Harvard, Vancouver, ISO, and other styles

17

Xiaowen Wang and K. J. Ray Liu. "Model-based channel estimation framework for MIMO multicarrier communication systems." IEEE Transactions on Wireless Communications 4, no. 3 (May 2005): 1050–63. http://dx.doi.org/10.1109/twc.2005.847020.

Full text

APA, Harvard, Vancouver, ISO, and other styles

18

Cui, Yuanhao, Visa Koivunen, and Xiaojun Jing. "Precoder and Decoder Co-Designs for Radar and Communication Spectrum Sharing." Sensors 22, no. 7 (March 29, 2022): 2619. http://dx.doi.org/10.3390/s22072619.

Full text

Abstract:

The coexistence of radar and communication systems is necessary to facilitate new wireless systems and services due to the shortage of the useful radio spectrum. Moreover, changes in spectrum regulation will be introduced in which the spectrum is allocated in larger chunks and different radio systems need to share the spectrum. For example, 5G NR, LTE and Wi-Fi systems have to share the spectrum with S-band radars. Managing interference is a key task in coexistence scenarios. Cognitive radio and radar technologies facilitate using the spectrum in a flexible manner and sharing channel awareness between the two subsystems. In this paper, we propose a nullspace-based joint precoder–decoder design for coexisting multicarrier radar and multiuser multicarrier communication systems. The maximizing signal interference noise ratio (max-SINR) criterion and interference alignment (IA) constraints are employed in finding the precoder and decoder. By taking advantage of IA theory, a maximum degree of freedom upper bound for the K+1-radar-communication-user interference channel can be achieved. Our simulation studies demonstrate that interference can be practically fully canceled in both communication and radar systems. This leads to improved detection performance in radar and a higher rate in communication subsystems. A significant performance gain over a nullspace-based precoder-only design is also obtained.

APA, Harvard, Vancouver, ISO, and other styles

19

Abdourahamane, Ali. "ADVANTAGES OF OPTICAL ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING IN COMMUNICATIONS SYSTEMS." EUREKA: Physics and Engineering 2 (March 31, 2016): 27–33. http://dx.doi.org/10.21303/2461-4262.2016.00058.

Full text

Abstract:

The role of the optical transmitter is to generate the optical signal, impose the information bearing signal, and launch the modulated signal into the optical fiber. The semiconductor light sources are commonly used in state-of-the-art optical communication systems. Optical communication systems has become one of the important systems after the advent of telephone, internet, radio networks in the second half of the 20th century. The development of optical communication was caused primarily by the rapidly rising demand for Internet connectivity. Orthogonal frequency-division multiplexing (OFDM) belongs to a wide class of multicarrier modulation. Orthogonal frequency-division multiplexing has succeeded in a wide range of applications in the wireless communication domain from video/audio digital broadcasting to wireless local area networks (LANs). Although their very low loss compared to that of the wireless counterpart, optical systems still need renovation for spans commonly less than150 Km. In this paper advantages of optical orthogonal frequency division multiplexing in communications systems will explained.

APA, Harvard, Vancouver, ISO, and other styles

20

Schneider, K. W., and W. H. Tranter. "Efficient simulation of multicarrier digital communication systems in nonlinear channel environments." IEEE Journal on Selected Areas in Communications 11, no. 3 (April 1993): 328–39. http://dx.doi.org/10.1109/49.219548.

Full text

APA, Harvard, Vancouver, ISO, and other styles

21

Et. al., Kiranmai Babburu ,. "PAPR REDUCTION TECHNIQUES AND IMAGE QUALITY ASSESSMENTIN IMAGE BASED MMS VLC SYSTEM." INFORMATION TECHNOLOGY IN INDUSTRY 9, no. 2 (April 13, 2021): 1178–85. http://dx.doi.org/10.17762/itii.v9i2.469.

Full text

Abstract:

The radiofrequency method of transmission suffers from the problem of the limited licensed radio frequency spectrum, & security, wide EMI (electromagnetic interference), high multipath fading & power consumption for short-range applications. The solution to these problems can be achieved by using optical wireless communication technique called the Visible Light Communication system where the data is sent through regulated emission of light. The transmission of digital image information productively in the present optical wireless communication framework is an uphill task as these systems often suffer from problems like frequency selective fading propagation losses and inter-symbol interferences. In order to conquer such difficulties we hereby propose a robust method to transfer the digital image through a Multi-Carrier Modulation Scheme-MMS. In this paper, an Image-Based Multicarrier modulation VLC system is designed through which is sent a corrupted Digital Image with additive white Gaussian noise and explored the overall execution of the Image based Multicarrier modulation VLC system at distinct SNR values. The paper also addresses the issue of high Peak to Average Power Ratio (PAPR) in Multicarrier modulation and reduced it by using different PAPR reduction techniques. The received image quality of the proposed system is obtained under different signal to noise ratios at different modulation schemes..

APA, Harvard, Vancouver, ISO, and other styles

22

Yadav, Shatrughna Prasad. "Filter Bank Multicarrier Modulation Techniques for 5G and Beyond Wireless Communication Systems." European Journal of Electrical Engineering and Computer Science 6, no. 2 (March 21, 2022): 18–24. http://dx.doi.org/10.24018/ejece.2022.6.2.423.

Full text

Abstract:

Higher data rates, higher mobility, lower latency, and better quality of service are the prime requirements for future communication systems. It is expected to provide connectivity to the Internet of everything, time-sensitive/time-engineered application, and service to high-fidelity holographic society. Its performance in terms of data rate, latency, synchronization, security, and reliability will be much better compared to 4G and 5G mobile communication systems. This paper investigates the performance of the pulse shaping-based filter bank multicarrier (FBMC) modulation technique used in 5G mobile communication systems. Simulation results show that the FBMC system has a better performance compared to the conventional orthogonal frequency division multiplexing (OFDM) system in terms of many parameters such as achievable channel capacity, signal to noise ratio, time, and frequency response, out of band leakage, etc.

APA, Harvard, Vancouver, ISO, and other styles

23

Wang, Fangzhou, and Hongbin Li. "Power Allocation for Coexisting Multicarrier Radar and Communication Systems in Cluttered Environments." IEEE Transactions on Signal Processing 69 (2021): 1603–13. http://dx.doi.org/10.1109/tsp.2021.3060003.

Full text

APA, Harvard, Vancouver, ISO, and other styles

24

Guner, Ahmet, and Ali Ozen. "Lifting Wavelet Transform Based Multicarrier Modulation Scheme for Coherent Optical Communication Systems." Journal of Lightwave Technology 39, no. 13 (July 2021): 4255–61. http://dx.doi.org/10.1109/jlt.2021.3070957.

Full text

APA, Harvard, Vancouver, ISO, and other styles

25

Ermolova, N. Y. "Kalman filter application for mitigation of nonlinear effects in multicarrier communication systems." IEE Proceedings - Communications 150, no. 4 (2003): 265. http://dx.doi.org/10.1049/ip-com:20030598.

Full text

APA, Harvard, Vancouver, ISO, and other styles

26

Yi Huang and T. M. Lok. "Channel Assignment and Time Sharing for Multiple Access in Multicarrier Communication Systems." IEEE Transactions on Vehicular Technology 56, no. 4 (July 2007): 2095–107. http://dx.doi.org/10.1109/tvt.2007.897214.

Full text

APA, Harvard, Vancouver, ISO, and other styles

27

Yue Rong, Xiaojun Tang, and Yingbo Hua. "A Unified Framework for Optimizing Linear Nonregenerative Multicarrier MIMO Relay Communication Systems." IEEE Transactions on Signal Processing 57, no. 12 (December 2009): 4837–51. http://dx.doi.org/10.1109/tsp.2009.2027779.

Full text

APA, Harvard, Vancouver, ISO, and other styles

28

Benedetto, S., M. Pent, and Z. Zhang. "Comparison of advanced coding and modulation schemes for multicarrier satellite communication systems." International Journal of Satellite Communications 7, no. 3 (July 1989): 165–81. http://dx.doi.org/10.1002/sat.4600070307.

Full text

APA, Harvard, Vancouver, ISO, and other styles

29

Obiedat, Esam A., and Lei Cao. "Turbo Decoder for Low-Power Ultrawideband Communication Systems." International Journal of Digital Multimedia Broadcasting 2008 (2008): 1–7. http://dx.doi.org/10.1155/2008/897069.

Full text

Abstract:

A new method to reduce the computational complexity of the turbo decoding in ultrawideband (UWB) orthogonal frequency division multiplexing (OFDM) system is proposed. Existing stopping techniques for turbo decoding process using constrained decoding assume fixed signal-to-noise ratio (SNR) for all the OFDM symbol bits so they fail to yield an acceptable bit-error rate (BER) performance in multicarrier systems. In this paper, we propose a bit-level stopping technique for turbo decoding process based on the constrained decoding method. In this technique, we combine the cyclic redundancy check (CRC) with an adaptive threshold on the log likelihood ratio (LLR) on each subcarrier to detect for convergence. The threshold is adaptive in the sense that the threshold on the LLR of a bit is determined by the average SNR of the OFDM symbol and the channel gain of the transmission subcarrier. Results show that when the channel state information (CSI) is used to determine the threshold on LLR, the stopping technique can reduce the computational complexity by about 0.5–2.5 equivalent iterations compared to GENIE turbo without degradation in the BER performance.

APA, Harvard, Vancouver, ISO, and other styles

30

Çalişir, Bircan, and Ayhan Akbal. "Hardware Prototyping and Modelling of Prototype Filter for FBMC." Wireless Communications and Mobile Computing 2020 (November 16, 2020): 1–10. http://dx.doi.org/10.1155/2020/8831568.

Full text

Abstract:

Filter bank multicarrier (FBMC) is one of the effective candidates for the fifth generation of wireless communication networks. 5G (5th-generation wireless systems) is accepted as the next major stage of mobile telecommunication technology. The extent of 5G will be expanded mobile broadband services to next-generation automobiles and connected machines. In particular, filter bank multicarrier with offset quadrature amplitude modulation (FBMC/OQAM) is determined as the future generation 5G air interface by researchers recently. Filter bank multicarrier (FBMC) is admitted as one of the alternative technologies for multicarrier modulation. Compared to orthogonal frequency-division multiplexing (OFDM), FBMC has better spectrum shape and supports mobility. Therefore, efficient hardware implementations have highly interested researchers. Cyclic prefix (CP) and guard band are used for orthogonal frequency-division multiplexing (OFDM) and this causes loss of spectral efficiency, but FBMC applications do not need CP and guard band. Due to the fact that FBMC has offset QAM (OQAM) and band-limited filtering features on each subcarrier, the need for CP and guard band is eliminated. In this paper, novel pipelined hardware architecture of the filter design of FBMC/OQAM modulator has been proposed.

APA, Harvard, Vancouver, ISO, and other styles

31

ALANSI, M., I. ELSHAFIEY, A. AL-SANIE, S. ALGHUWAINEM, and H. AL-SHARARI. "MC-OFDMA FOR MULTI-USER DETECTION SCHEMES IN POWERLINE COMMUNICATION." Journal of Circuits, Systems and Computers 22, no. 08 (September 2013): 1350063. http://dx.doi.org/10.1142/s0218126613500631.

Full text

Abstract:

Support of multiple users in wideband powerline communication (PLC) is essential to enhance the dependence on such emerging systems. This paper presents novel adaptations of the space division multiple access (SDMA) techniques to PLC. Multicarrier data transmission and orthogonal frequency division multiple access (OFDMA) techniques are invoked to mitigate the technical challenges of PLC channel impairments and enhance the spectral efficiency. Performance is enhanced using orthogonal Walsh–Hadamard codes. Linear and nonlinear multi-user detection (MUD) schemes are investigated, including the optimal maximum likelihood (ML) methods and the near-optimal sphere detectors(SDs). Presented results indicate the potential of the proposed scheme to enhance wideband PLC systems.

APA, Harvard, Vancouver, ISO, and other styles

32

Et. al., Preesat Biswas,. "A Simulational Performance of 5G MIMO Systems applying UFMC( Universal Filtered Multicarrier) Study." Turkish Journal of Computer and Mathematics Education (TURCOMAT) 12, no. 2 (April 10, 2021): 3176–83. http://dx.doi.org/10.17762/turcomat.v12i2.2365.

Full text

Abstract:

The advanced wireless communication system uses the new technology, preparing the limited radio spectrum and its low expensive resource. The Scenario of Wireless communication is needed for the flexible mechanism with available time and frequency resources. The OFDM system, which is a multicarrier process with a remote framework in Long Term Evolution (LTE), 4G, and 5G. Using of UFMC(Universal_Filtered_Multicarrier)system with OFDM system symmetrical recurrence division multiply with modulation system and the correlation between them. Using of UFMC system with QAM into the MIMO system the result of subchannel, the model channel correlation recreated in “ A Simulational Performance of 5G MIMO Systems applying UFMC (Universal_Filtered_Multicarrier ) Study” result shown in MATLAB.

APA, Harvard, Vancouver, ISO, and other styles

33

Assaf, Mohammad Razk, and Abdel-Nasser Assimi. "Iterative Interference Cancellation for Coded Filter Bank Multicarrier Systems." International Journal of Embedded and Real-Time Communication Systems 10, no. 4 (October 2019): 81–93. http://dx.doi.org/10.4018/ijertcs.2019100105.

Full text

Abstract:

Filter bank multicarrier is one of the candidates for future communication systems. Simple equalization methods cannot be directly applied due to the high interference from adjacent channels. In this article, the authors derive a soft-input/soft-output (SISO) equalizer based on the minimum mean square error (MMSE) criterion for the bit-interleaved coded system using a filter bank multi-carrier scheme with offset quadrature amplitude modulation (FBMC/OQAM). The authors use this SISO-MMSE equalizer in a turbo-equalization scheme for each sub-carrier. The difficulty in this implementation comes from the required processing delay per turbo-iteration due to the non-causal nature of the interference in this system. Therefore, the number of turbo-iterations is limited in order to limit the processing delay. The authors evaluate the performance of the proposed turbo-equalizer over the International Telecommunication Union (ITU) Vehicular B channel by mean of numerical simulations. The obtained results show the effectiveness of the proposed equalizer in term of signal-to-noise ratio (SNR) gain.

APA, Harvard, Vancouver, ISO, and other styles

34

Kurniawan, Ernest, A. S. Madhukumar, and Francois Chin. "Low Complexity Antenna Selection Scheme for Multicarrier MIMO Broadcast Communication." Journal of Signal Processing Systems 62, no. 2 (February 21, 2009): 247–62. http://dx.doi.org/10.1007/s11265-009-0347-2.

Full text

APA, Harvard, Vancouver, ISO, and other styles

35

Srivastava, Saurabh, and O. P. Sahu. "Filter Bank Based Notch Filter for Interference Cancellation in UWB Systems." International Journal of Advance Research and Innovation 2, no. 2 (2014): 85–95. http://dx.doi.org/10.51976/ijari.221413.

Full text

Abstract:

The primary concern of any communication engineer is the bandwidth of the transmitted or received signal and the noise encountered during the transmission reception process. We analyze the effects of narrowband interference in Multicarrier UWB systems such as short distance IEEE 802.11a system. It is known that the process of narrowband interference cancellation is quite complex especially for ultra-wideband systems due to their power spectral density as low as -41dBm/MHz recommendations by the FCC. We review the model for narrow band interference and use the statistical property of correlation to determine the interference power spectral density. We review the sub band processing of UWB signals and apply notch filtering after measuring the threshold to eliminate the interference. We propose a novel mechanism for generation of the required notch filter using the sub band signals generated after the sub band decomposition of the UWB signal using filter banks. The proposed mechanism may be applied in conjunction with the other filter bank based multicarrier systems that have the advantage of better side-band attenuation of signals than commonly used OFDM system.

APA, Harvard, Vancouver, ISO, and other styles

36

OH, TICK HUI, and KIM GEOK TAN. "IMAGE TRANSMISSION THROUGH MC-CDMA CHANNEL: AN IMAGE QUALITY EVALUATION." International Journal of Wavelets, Multiresolution and Information Processing 06, no. 06 (November 2008): 827–50. http://dx.doi.org/10.1142/s0219691308002707.

Full text

Abstract:

The multicarrier code division multiple access (MC-CDMA) system is considered as an advancement in mobile communication system. Seen as the next generation communication technology after the 3G, signals can be easily transmitted and received using the Fast Fourier Transform (FFT) device without increasing the transmitter and receiver complexities. Besides, the MC-CDMA system provides good spectral efficiency. If the number of sub-carriers and the spacing between sub-carriers are chosen properly, it is unlikely that all the sub-carriers will be in deep fade. Thus, it provides frequency diversity. Frequency diversity means that frequencies separated by more than the coherence bandwidth of the channel will be uncorrelated and thus will not experience the same fades. Three types of MC-CDMA systems were proposed — MC-CDMA, multicarrier DS-CDMA and multitone CDMA. In MC-CDMA systems, the transmitter spreads the user data over different sub-carriers using spreading code (Hadamard Walsh code) in frequency domain. The multicarrier DS-CDMA system spreads the S/P converted data streams using spreading code in time domain. This scheme is proposed for uplink communication because this scheme can provide quasi-synchronization. In the MT-CDMA scheme, the S/P converted data stream is spread in time domain so that the spectrum of each sub-carrier prior to spreading operation can satisfy the orthogonality condition with minimum frequency separation. Thus, the spectrum of each sub-carrier no longer satisfies the orthogonality condition. MC-CDMA uses longer spreading code as compared to other schemes and thus accommodates more users. The JPEG2000 still image compression is a new image compression technique which is optimized not only for efficiency, but also for scalability and interoperability in network and mobile environment. This standard can provide superior low bit rate performance and continuous-tone and bi-level compression. Because of the robustness to bit errors, JPEG2000 is widely used in wireless communication channel.

APA, Harvard, Vancouver, ISO, and other styles

37

Sedarat, Hossein, and Kevin Fisher. "Multicarrier communication in presence of biased-Gaussian noise sources." Signal Processing 88, no. 7 (July 2008): 1627–35. http://dx.doi.org/10.1016/j.sigpro.2007.11.025.

Full text

APA, Harvard, Vancouver, ISO, and other styles

38

Huynh, Chuyen Khoa, and Won Cheol Lee. "An interference avoidance method using two dimensional genetic algorithm for multicarrier communication systems." Journal of Communications and Networks 15, no. 5 (October 2013): 486–95. http://dx.doi.org/10.1109/jcn.2013.000088.

Full text

APA, Harvard, Vancouver, ISO, and other styles

39

Tsai, Pei-Yun, and Tzi-Dar Chiueh. "A Low-Power Multicarrier-CDMA Downlink Baseband Receiver for Future Cellular Communication Systems." IEEE Transactions on Circuits and Systems I: Regular Papers 54, no. 10 (October 2007): 2229–39. http://dx.doi.org/10.1109/tcsi.2007.904593.

Full text

APA, Harvard, Vancouver, ISO, and other styles

40

Yeh, Hen-geul, Yuan-kwei Chang, and Babak Hassibi. "A scheme for cancelling intercarrier interference using conjugate transmission in multicarrier communication systems." IEEE Transactions on Wireless Communications 6, no. 1 (January 2007): 3–7. http://dx.doi.org/10.1109/twc.2007.04541.

Full text

APA, Harvard, Vancouver, ISO, and other styles

41

Jaime-Rodríguez, José Jimmy, Carlos Antonio Gómez-Vega, Carlos A. Gutiérrez, José Martín Luna-Rivera, Daniel Ulises Campos-Delgado, and Ramiro Velázquez. "A Non-WSSUS Channel Simulator for V2X Communication Systems." Electronics 9, no. 8 (July 24, 2020): 1190. http://dx.doi.org/10.3390/electronics9081190.

Full text

Abstract:

This paper presents a simulator of non-wide sense stationary uncorrelated scattering (non-WSSUS) multipath fading channels for the performance analysis of vehicle-to-everything (V2X) communication systems. The proposed simulator is constructed with the combination of the Monte Carlo and sum-of-cisoids (SOC) principles, and it is suitable for multicarrier transmission schemes such as those defined for dedicated short-range communications (DSRC) and cellular-based V2X (C-V2X) communications. The channel simulator provides an accurate and flexible solution to reproduce the time and frequency (TF) correlation properties of non-WSSUS vehicular channels under arbitrary isotropic and non-isotropic scattering conditions. Furthermore, the proposed simulator allows velocity variations and non-linear trajectories of the mobile stations (MSs). To demonstrate the practical value of the presented simulator, we evaluate the bit error rate (BER) performance of two channel estimation techniques that are considered for IEEE 802.11p transceivers, namely the least squares (LS) estimator and the spectral temporal averaging (STA) technique. The BER performance of both channel estimators was analyzed by considering three propagating scenarios for road safety applications. Our results show that the non-stationary characteristics of the vehicular multipath fading channel have nearly no effects on the LS estimator’s BER performance. In contrast, the performance of the STA estimator is significantly affected by the channel’s non-stationary characteristics. A variation of the original STA technique that applies only a temporal averaging is introduced in this work to improve the system’s BER in non-WSSUS channels.

APA, Harvard, Vancouver, ISO, and other styles

42

Khelouani, Imane, Kawtar Zerhouni, Fouzia Elbahhar, Raja Elassali, and Noureddine Idboufker. "UFMC Waveform and Multiple-Access Techniques for 5G RadCom." Electronics 10, no. 7 (April 2, 2021): 849. http://dx.doi.org/10.3390/electronics10070849.

Full text

Abstract:

In recent years, multiple functions traditionally realized by hardware components have been replaced by digital-signal processing, making radar and wireless communication technologies more similar. A joint radar and communication system, referred to as a RadCom system, was proposed to overcome the drawbacks of the conventional existent radar techniques while using the same system for intervehicular communication. Consequently, this system enhances used spectral resources. Conventional orthogonal frequency division multiplexing (OFDM) was proposed as a RadCom waveform. However, due to OFDM’s multiple shortcomings, we propose universal filtered multicarrier (UFMC), a new 5G waveform candidate, as a RadCom waveform that offers a good trade-off between performance and complexity. In addition to that, we propose multicarrier code division multiple access (MC-CDMA) as a multiple-access (MA) technique that can offer great performance in terms of multiuser detection and power efficiency. Moreover, we study how UFMC filter length and MC-CDMA spreading sequences can impact overall performance on both radar and communication separately under a multipath channel. Analysis of the bit error rate (BER) of the UFMC waveform was performed in order to confirm the experiment results.

APA, Harvard, Vancouver, ISO, and other styles

43

Wang, Fangzhou, Hongbin Li, and Mark A. Govoni. "Power Allocation and Co-Design of Multicarrier Communication and Radar Systems for Spectral Coexistence." IEEE Transactions on Signal Processing 67, no. 14 (July 15, 2019): 3818–31. http://dx.doi.org/10.1109/tsp.2019.2920598.

Full text

APA, Harvard, Vancouver, ISO, and other styles

44

Xie, Fangtong, Yunan Zhu, Biao Wang, Wu Wang, and Pian Jin. "End-to-End Underwater Acoustic Communication Based on Autoencoder with Dense Convolution." Electronics 12, no. 2 (January 4, 2023): 253. http://dx.doi.org/10.3390/electronics12020253.

Full text

Abstract:

To address the problems of the high complexity and poor bit error rate (BER) performance of traditional communication systems in underwater acoustic environments, this paper incorporates the theory of deep learning into a conventional communication system and proposes data-driven underwater acoustic filter bank multicarrier (FBMC) communications based on convolutional autoencoder networks. The proposed system is globally optimized by two one-dimensional convolutional (Conv1D) modules at the transmitter and receiver, it realizes signal reconstruction through end-to-end training, it effectively avoids the inherent imaginary interference of the system, and it improves the reliability of the communication system. Furthermore, dense-block modules are constructed between Conv1D layers and are connected across layers to achieve feature reuse in the network. Simulation results show that the BER performance of the proposed method outperforms that of the conventional FBMC system with channel equalization algorithms such as least squares (LS) estimation and virtual time reversal mirrors (VTRM) under the measured channel conditions at a certain moment in the Qingjiang River.

APA, Harvard, Vancouver, ISO, and other styles

45

Cruz-Roldán, Fernando, José Piñeiro-Ave, José L. Rojo-Álvarez, and Manuel Blanco-Velasco. "Simple Algorithms for Estimating the Symbol Timing Offset in DCT-Based Multicarrier Systems." Wireless Communications and Mobile Computing 2018 (July 15, 2018): 1–8. http://dx.doi.org/10.1155/2018/3649513.

Full text

Abstract:

Multicarrier modulation based on discrete cosine transform (DCT-MCM) is a candidate technique for future wireless communication. DCT-MCM provides a better usage of the spectrum, allowing for much lower out-of-band radiation than conventional OFDM. In this paper, we address the problem of correcting the symbol timing offset in DCT-MCM. Two sliding window-based correlation algorithms are proposed. The new approaches consider a prefix and a suffix that are inserted into each data symbol, which are the replica of part of the useful data. The performance of the proposed approaches is verified and tested, and their usefulness and effectiveness are illustrated by computer simulations.

APA, Harvard, Vancouver, ISO, and other styles

46

Zhu, Yunan, Biao Wang, Fangtong Xie, Chengxi Wu, and Peng Chao. "Data-Driven Signal Detection for Underwater Acoustic Filter Bank Multicarrier Communications." Wireless Communications and Mobile Computing 2022 (May 16, 2022): 1–9. http://dx.doi.org/10.1155/2022/4943442.

Full text

Abstract:

By contraposing the signal detection for filter bank multicarrier (FBMC) communications with the underwater acoustic (UWA) channel, this paper analyzes the traditional imaginary interference problem and proposes a deep learning-based method. The neural network with feature extraction and automatic learning ability is employed to replace the demodulation modules to recover transmitted signals without explicit channel estimation and equalization. Sufficient data sets are generated according to the measured channel conditions in Qingjiang river, the optimization of network parameters is finished by constraining cost function in offline training, and the signal detection is carried out directly with the well-trained network in online testing. The system performance of various supervised learning models such as multilayer perceptron (MLP), convolutional neural network (CNN), and bidirectional long short-term memory (BLSTM) network is compared under different data sizes, network parameters, and prototype filters. The simulation results show that the bit error rate (BER) performance of the proposed signal detection is better than that of the classic one, which indicates that deep learning is a promising tool in UWA communication systems.

APA, Harvard, Vancouver, ISO, and other styles

47

Leftah, Hussein Abdullah, and Husham Lateef Swadi. "PERFORMANCE EVALUATION OF SINGLE CARRIER FREQUENCY DOMAIN EQUILIZER (SC-FDE) OVER IMPULSIVE NOISE CHANNEL." Al-Qadisiyah Journal for Engineering Sciences 11, no. 2 (January 29, 2019): 270–77. http://dx.doi.org/10.30772/qjes.v11i2.559.

Full text

Abstract:

Impulsive noise is considered as one of the major source of disturbance in the state-of-the-art multicarrier (MC) communication systems. Therefore, several techniques are being constantly proposed to eliminate the effect of such noise. In this work, a time domain matrix interleaved is compiled with a single carrier frequency domain equalizer (SC-FDE) is proposed to reduce the deleterious effects of impulsive noise. A mathematical model for the proposed scheme is also presented in this paper. Simulation results show that the proposed technique superiors the interleaved multicarrier system where the proposed scheme can completely avoid the error floors not only at high signal-to-noise ratio (SNR) but also at heavily distributed impulsive noise. The bit-error-rate (BER) of the alternative proposed scheme decreases as the signal-to-noise ratio (SNR) increases whereas the BER of the standard system suffers from error-floors with a constant BER at about 10-3 for about 8 dB SNR for medium and heavily impulsive noise.

APA, Harvard, Vancouver, ISO, and other styles

48

Tuzlukov, Vyacheslav. "Performance of Generalized Receiver Employed by Broadband Multicarrier DS-CDMA System Using Space-Time Spreading-Assisted Transmit Diversity." WSEAS TRANSACTIONS ON COMMUNICATIONS 20 (September 29, 2021): 152–71. http://dx.doi.org/10.37394/23204.2021.20.21.

Full text

Abstract:

In this paper the multicarrier direct-sequence code-division multiple access (MC DS-CDMA) using space-time spreading assisted transmit diversity is investigated in the context of broadband wireless communi-cations systems constructed based on the generalized approach to signal processing in noise over frequency-se-lective Rayleigh fading channels. We consider the issue of parameter design for the sake of achieving high-ef-ficiency communications in various dispersive environments. In contrast to the conventional MC DS-CDMA wireless communication system employing the time (T)-domain spreading only, in the present paper the broad-band wireless MC DS-CDMA wireless communication schemes employ both the time (T)-domain and frequen-cy (F)-domain spreading, i.e., employ the TF-domain spreading. The bit-error rate (BER) performance of the space-time spreading assisted broadband MC DS-CDMA wireless communications system is investigated for down-link transmissions associated with the single user and multiuser generalized detectors and is compared with that of the single user correlation detector and the multiuser decorrelating detector. Our study demonstra-tes that with appropriately selecting the system parameters, the broadband MC DS-CDMA wireless communi-cation system using the space-time spreading assisted transmit diversity constitutes a promising downlink tran-smission scheme. This scheme is capable to support ubiquitous communications over diverse communication environments without the BER performance degradation

APA, Harvard, Vancouver, ISO, and other styles

49

Monteiro, Felipe T., Wesley S. Costa, José L. C. Neves, David M. I. Silva, Helder R. O. Rocha, Evandro O. T. Salles, and Jair A. L. Silva. "Experimental evaluation of pulse shaping based 5G multicarrier modulation formats in visible light communication systems." Optics Communications 457 (February 2020): 124693. http://dx.doi.org/10.1016/j.optcom.2019.124693.

Full text

APA, Harvard, Vancouver, ISO, and other styles

50

Dr. Krishna Meel, Vikas,. "Design Simulation and Assessment of Energy Efficient FBMC System for 5G Communication System." Mathematical Statistician and Engineering Applications 71, no. 2 (March 6, 2022): 28–41. http://dx.doi.org/10.17762/msea.v71i2.63.

Full text

Abstract:

Channel capacity and Peak Average to Power Ratio (PAPR) are essential elements in offering dependable communication through wireless medium in wireless communication system. The rating of an amplifier in an Orthogonal Frequency Division Multiplexing (OFDM) system, as well as prospective future candidates of 5G systems such as Filter Bank Multicarrier (FBMC) and Universal Filtered Multicarrier (UFMC), affected by a high peak to average power ratio. The demand for channel capacity fluctuates due to the growing number of wireless network users. This paper recommended a low PAPR FBMC method, showing excellent performance in terms of PAPR reduction gain, overhead computation complexity and overhead SI compared to the current PAPR reduction scheme. In order to further increase the reduction in PAPR we have developed four variants of FBMC waveforms for DFT expansion, ITSM and the selected with the smallest peak capacity. In order to further reduce the PAPR rate of DFT expansion we have produced four different versions. After implementation of the proposed algorithm, the PAPR of the FBMC method has been considerably reduced. Following use of DFT propagation and ITSM conditioning, PAPR was decreased by 25 percent. The side data, which is persistent with traditional PAPR reduction techniques like cutting, partial transmission series, and selective mapping, is also disabled. The proposed device improves the transmitters' lifetime and efficiency through waveform accuracy. The study begun was planned to reduce the limitations of contending waveforms in order to create a resourceful communication system.

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!