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Constant Modulus and Reduced PAPR Block Differential Encoding for Frequency-Selective Channels
2004
IEEE Transactions on Communications
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Index Terms-Block differential encoding, frequency-selective channels, orthogonal frequency-division multiplexing (OFDM), peak-to-average power ratio (PAPR). ...
To mitigate these effects, we design a block differential encoding scheme over the subchannels that preserves multipath diversity, and in addition, results in constant modulus transmitted symbols. ...
CONCLUSIONS We have in this paper designed a block differential encoding scheme that exploits the multipath diversity of a frequency-selective channel, and at the same time preserves the constant modulus ...
doi:10.1109/tcomm.2004.826413
fatcat:s5q3lwb3uzfqzj4xtujry6xi5q
Neutrosophic data formation using Gaussian filter based costas coding for wireless communication systems
2019
Zenodo
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Outstanding advantages of OFDM helps high data rate communication systems such as Digital Video Broadcasting (DVB) and mobile worldwide interoperability for microwave access (mobile Wi-MAX). ...
But, OFDM system grieves from grave issue of high PAPR. ...
In OFDM, the constant envelope peak and multipath propagation produce fading in a frequency selective channel permitting operation without an equalizer especially when differential data encoding is used ...
doi:10.5281/zenodo.3077232
fatcat:tvethqigzrcw7mkfrmspbzp2yy
Neutrosophic data formation using Gaussian filter based costas coding for wireless communication systems
2019
Cognitive Systems Research
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Consequently; the signal can assume to fade in a frequency selective channel without an equalizer. ...
In order to make Neutrosophic data for less PAPR criteria, Gaussian filter based Costas coding is proposed. ...
In OFDM, the constant envelope peak and multipath propagation produce fading in a frequency selective channel permitting operation without an equalizer especially when differential data encoding is used ...
doi:10.1016/j.cogsys.2018.09.030
fatcat:veko4trfznc2zcqlmw7a2rx6pm
Adaptive Pre/Post-Compensation of Cascade Filters in Coherent Optical Transponders
2020
Future Internet
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Additionally, other tangible system benefits of our method are listed and discussed. ...
rate (BER) of 0.02 versus pre-compensation only in the linear and nonlinear operating region of fiber respectively. ...
The latter is the core of the Rx and it is adaptive, where Constant Modulus Algorithm (CMA) and Least Mean Square (LMS) are examples of the adaptive method used [21] , to decouple the two polarizations ...
doi:10.3390/fi12020021
fatcat:zqxj25lqz5e6lf7lo4mobjuloa
Universal space-time coding
2003
IEEE Transactions on Information Theory
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The proposed framework subsumes many of the existing codes in the literature, extends naturally to time-selective and frequency-selective channels, and allows for more flexibility in the tradeoff between ...
A universal framework is developed for constructing full-rate and full-diversity coherent space-time codes for systems with arbitrary numbers of transmit and receive antennas. ...
ACKNOWLEDGMENT The authors are grateful to the anonymous reviewers for their helpful comments. ...
doi:10.1109/tit.2003.810644
fatcat:n3n3eppk7benzdcz57t6xl4jx4
Single-carrier frequency domain equalization
2008
IEEE Signal Processing Magazine
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of strategies for frequency diversity scheduling in multiuser communication systems. ...
O rthogonal frequency division multiplexing (OFDM) has been recently adopted by major manufacturers and by standardization bodies for a wide range of wireless and wireline applications ranging from digital ...
subcarriers are differentially encoded and noncoherent detection is employed. ...
doi:10.1109/msp.2008.926657
fatcat:ttxo64yqqretnhfecgmbww7jxm
Coded Modulation and Impairment Compensation Techniques in Optical Fiber Communication
[chapter]
2021
Fiber Optics [Working Title]
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, pre-compensation and receiver side's DSP techniques designed for coherent systems are introduced. ...
Probabilistic shaping is a new coded modulation technology, which can reduce transmission power by precoding, reduce bit error rate and improve communication rate. ...
To process different shaped signals, a pre-convergence constant modulus algorithm with step of 2e-6 and taps of 9 followed by 1% pilot aided multimodulus algorithm are used for polarization demultiplexing ...
doi:10.5772/intechopen.98811
fatcat:5mkytzm6mfflnnr6bo32mg4e74
Radio Resource Management in Joint Radar and Communication: A Comprehensive Survey
[article]
2021
arXiv
pre-print
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., spectrum and energy, reduce the system size, and minimize the system cost. However, there are several challenges to be solved for the JRC design. ...
Then, we review and analyze resource management approaches, i.e., spectrum sharing, power allocation, and interference management, for JRC. ...
The OTFS technique enables data symbols to experience a near-constant channel gain even for the channels with high Doppler frequencies, massive MIMO, or at high frequencies such as mmWave. ...
arXiv:2007.13146v3
fatcat:aq5ti5uruvgczpfcrtulcfehf4
Design Guidelines for Spatial Modulation
2015
IEEE Communications Surveys and Tutorials
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It constitutes a 12 promising transmission candidate for large-scale MIMO design 13 and for the indoor optical wireless communication while relying 14 on a single-Radio Frequency (RF) chain. ...
., the antenna indices) as an 8 additional dimension invoked for transmitting information, apart 9 from the traditional Amplitude and Phase Modulation (APM). ...
See http://www.ieee.org/publications_standards/publications/rights/index.html for more information. ...
doi:10.1109/comst.2014.2327066
fatcat:xmlb5xvnbbdpvl24wnjkovmpwq
Information Theory of Underspread WSSUS Channels
[chapter]
2011
Wireless Communications Over Rapidly Time-Varying Channels
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In this model, the channel is taken to be constant over a given time interval, called block, and assumed to change independently from one such block to the next. ...
The independence assumption across blocks can be justified, e.g., for systems employing frequency hopping or if the data symbols are interleaved. ...
The underlying reason is that in constant modulus signals, the information is encoded in the phase of the signal. ...
doi:10.1016/b978-0-12-374483-8.00002-9
fatcat:bgdsrfubbfcmrglyjkkgrlx7ke
2013 Index IEEE Signal Processing Letters Vol. 20
2013
IEEE Signal Processing Letters
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Departments and other items may also be covered if they have been judged to have archival value. The Author Index contains the primary entry for each item, listed under the first author's name. ...
The primary entry includes the coauthors' names, the title of the paper or other item, and its location, specified by the publication abbreviation, year, month, and inclusive pagination. ...
., +, LSP July 2013 705-708 Frequency division multiple access Constant Modulus Algorithm for Peak-to-Average Power Ratio (PAPR) Reduction in MIMO OFDM/A. ...
doi:10.1109/lsp.2013.2291126
fatcat:pe3e4vel6bhjze7qeapf7eml5e
100G and Beyond Transmission Technologies for Evolving Optical Networks and Relevant Physical-Layer Issues
2012
Proceedings of the IEEE
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functions previously handled poorly by optical analog hardware such as spectrum shaping and demultiplexing of optical channels. ...
The authors outline technologies that are enabling next-generation optical fiber communication systems with channels that support 100-Gb/s and higher rates. ...
The TDE coefficients can thereafter be adapted using any commonly used algorithm for single-carrier systems such as constant modulus algorithm (CMA) or decision-directed algorithm (DD) [68] . ...
doi:10.1109/jproc.2012.2183329
fatcat:hfaa4eq7lzey7g4w7hi6wboyqu
ANTS 2020 Program
2020
2020 IEEE International Conference on Advanced Networks and Telecommunications Systems (ANTS)
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The selected cluster of transmit antennas will encode the input symbol-stream with the help of generalized orthogonal space-time block codes to provide full diversity order. ...
The channel model considered at mmWave carrier frequencies is the clustered Rician fading channel, which has few multipaths. ...
The constant modulus cost function formulated using RMLA is used for modelling the equalizer to adaptively suppress the influence of the impulsive noise.The effectiveness of the proposed RMLA based impulse ...
doi:10.1109/ants50601.2020.9342833
fatcat:ldgs2gnywnagpjk7sza6edc44e
2019 Index IEEE Transactions on Signal Processing Vol. 67
2019
IEEE Transactions on Signal Processing
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., +, TSP Feb. 1, 2019 622-637 Joint Channel-Estimation/Decoding With Frequency-Selective Channels and Few-Bit ADCs. ...
., +, TSP Dec. 1, 2019 5893-5908 Joint Channel-Estimation/Decoding With Frequency-Selective Channels and Few-Bit ADCs. ...
doi:10.1109/tsp.2020.2968163
fatcat:dvvpqntb2rc2bjed5nnk4xora4
Interference Exploitation via Symbol-Level Precoding: Overview, State-of-the-Art and Future Directions
[article]
2019
arXiv
pre-print
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Proof-of-concept testbeds are demonstrated for the potential practical implementation of CI precoding, and finally a list of open problems and practical challenges are presented to inspire and motivate ...
The definition for CI is presented and the corresponding mathematical characterization is formulated for popular modulation types, based on which optimization-based precoding techniques are discussed. ...
Some other works include CEP for frequency-selective channels in [236] , a joint transceiver design for CEP in a point-to-point (P2P) MIMO system in [237] , CEP for MISO multicasting in [238] , [239 ...
arXiv:1907.05530v1
fatcat:ozoc4mlk4bhwtnslxyaw6ybw7m
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