Hamamura, M;
Darwazeh, I;
(2024)
Stochastic Resonance-Based Power Amplifier Design for Orthogonal Frequency-Division Multiplexing Signals.
IEEE Wireless Communications Letters
pp. 1-5.
10.1109/LWC.2024.3472705.
(In press).
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Abstract
A stochastic resonance-based power amplifier (PA) is proposed for linearly and efficiently amplifying signals with large envelope fluctuations such as those transmitted in orthogonal frequency-division multiplexing (OFDM) systems. The proposed architecture uses a Collins summing network in conjunction with a bandpass filter. The performance of the proposed PA is evaluated through the amplification of OFDM signals in terms of bit-error rate characteristics for both uncoded and coded message symbols. It is demonstrated that the performance improves as the number of parallel paths in the summing network increases, with a significant performance gain being obtained even for a moderate number of parallel paths.
| Type: | Article |
|---|---|
| Title: | Stochastic Resonance-Based Power Amplifier Design for Orthogonal Frequency-Division Multiplexing Signals |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1109/LWC.2024.3472705 |
| Publisher version: | http://dx.doi.org/10.1109/lwc.2024.3472705 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher's terms and conditions. |
| Keywords: | Stochastic resonance, power amplifier, deltasigma modulation, constant envelope, switch-mode power amplifier, OFDM |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10199345 |
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