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Performance of Fibonacci-Binary sequences for SLM based OFDM systems [PDF]
, 2014 Adegbite, Saheed +2 more
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Enhanced EEG Forecasting: A Probabilistic Deep Learning Approach
Pankka H +3 more
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Nonlinear companding transform for PAPR reduction of OTFS signals
Journal of Optical Communications, 2022Abstract Peak-to-Average Power Ratio (PAPR) is one of the major limitations of an Orthogonal time frequency space (OTFS) signals. To reduce the PAPR, a simple non-linear companding transform is proposed in this paper. The proposed companding transform mainly compresses the large amplitudes and slightly enhances the small amplitudes such ...
Hanumantharao Bitra +2 more
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An adaptive companding transform for OFDM systems
Proceedings of the IEEE 6th Circuits and Systems Symposium on Emerging Technologies: Frontiers of Mobile and Wireless Communication (IEEE Cat. No.04EX710), 2004A novel adaptive companding transform scheme is proposed to efficaciously reduce the peak-to-average power ratio (PAPR) in orthogonal frequency division multiplexing (OFDM) signals. The feasible adaptive companding algorithm is proposed and discussed too.
null Gang Yang +2 more
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IEEE Transactions on Broadcasting, 2014
Companding is a well-known technique for the peak-to-average power ratio (PAPR) reduction of orthogonal frequency division multiplexing (OFDM) signals. However, as companding transform is an extra operation after the modulation of OFDM signals, companding schemes reduce PAPR at the expense of increasing the bit error rate (BER).
null Meixia Hu +3 more
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Companding is a well-known technique for the peak-to-average power ratio (PAPR) reduction of orthogonal frequency division multiplexing (OFDM) signals. However, as companding transform is an extra operation after the modulation of OFDM signals, companding schemes reduce PAPR at the expense of increasing the bit error rate (BER).
null Meixia Hu +3 more
openaire +1 more source
Bit-Error-Rate Performance of Companding Transforms for OFDM
IEEE Transactions on Vehicular Technology, 2013This paper provides a comprehensive analytical framework to assess the relative bit-error-rate (BER) performance of companding transforms (CTs) employed to reduce the peak-to-average-power ratio (PAPR) in orthogonal frequency-division multiplexing (OFDM) systems.
Yasir Rahmatallah +2 more
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Companding transformation display for 12 bit image data
Optics and Precision Engineering, 2011Based on the digital communication companding transformation principle,a 16-polygonal line geometric partition method which maps 12-bit image data to 8-bit data was proposed to display 12-bit image information on a 8-bit gray scale monitor.The formulas for calculating the linear and nonlinear quantization Signal to Noise Ratio(SNRs) were derived.By ...
范赐恩 FAN Ci-en +4 more
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PAPR Reduction in OFDM Systems via Nonlinear Companding Transform
2012 8th International Conference on Wireless Communications, Networking and Mobile Computing, 2012Companding transform technique is commonly used to reduce the peak-to-average power ratio (PAPR) of orthogonal frequency division multiplexing (OFDM) signals. This paper proposes a novel nonlinear companding transform method. By transforming original signals into a specified distribution while remaining a constant average output power level, this ...
Y. Wang, L.-H. Wang, J.-H. Ge, B. Ai
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PAPR Reduction in LTE Uplink Communications by Airy Companding Transform
2018 9th International Conference on Computing, Communication and Networking Technologies (ICCCNT), 2018Long Term Evolution uses Single Carrier Frequency Division Multiple Access (SC-FDMA) for uplink communications as it has low peak to average power ratio (PAPR). But PAPR is still an issue for higher order modulations in localized SC-FDMA systems. Companding is an attractive technique to reduce PAPR.
K. Shri Ramtej, S. Anuradha
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