Performance evaluation of effect of nonlinear distortion in SC-FDMA system

Suzuki, Shinnosuke; Takyu, Osamu; Umeda, Yohtaro

doi:10.1109/isita.2008.4895381

Cited by 6 publications

(2 citation statements)

References 2 publications

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“…SC-FDMA waveforms generally perform better in nonlinear channels. However they require some dBs of IBO as well, because their Peak-to-Average Power Ratio (PAPR) is not negligible, in particular when higher order modulations are employed for data transmission [7].…”

Section: Introductionmentioning

confidence: 99%

Analysis and assessment of the effects of phase noise in constant envelope multicarrier satellite transmissions

Sacchi

Cianca

Rossi

et al. 2015

2015 IEEE International Conference on Communications (ICC)

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Constant-Envelope (CE) multicarrier techniqueshave been recently proposed in order to enable the use of multicarrier waveforms in channels characterized by severe nonlinear distortions. They are based on a phase modulation applied to the multicarrier signal, generated in the time domain by means of a real-valued DFT. Such techniques, known as CE-OFDM and CE-SC-FDMA, demonstrated their superior performance with respect to conventional OFDMA and SC-FDMA, when applied to nonlinear satellite channels, at the price of reduced spectral efficiency. An open issue still to be evaluated is related to the impact of phase noise on the performance of CE multicarrier systems. This is especially important in view of the use of EHF bands for broadband satellite communications. This paper aims at analyzing the effects of phase noise on CE-OFDM and CE-SC-FDMA, highlighting the different behavior of conventional and CE multicarrier signals in the presence of such impairment. Then, simulation results will be discussed considering two different phase noise masks. The performed analysis demonstrates that CE multicarrier signals have globally better performance when both phase noise and nonlinear distortions are considered. Moreover, the sensitivity to the phase noise is strongly dependent from the modulation order and the angular modulation index.

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Section: Introductionmentioning

confidence: 99%

Analysis and assessment of the effects of phase noise in constant envelope multicarrier satellite transmissions

Sacchi

Cianca

Rossi

et al. 2015

2015 IEEE International Conference on Communications (ICC)

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“…The theoretical analysis of SC-FDMA based transmission systems undergoing nonlinear amplification has been addressed in [4]. Performance evaluation of nonlinear distortion effects in SC-FDMA has been evaluated in [5] and [6]. In order to alleviate the nonlinear distortion, Deumal et al have introduced in [7], [8] the iterative decoder based on the solutions in [2], [3] but reformulated to SC-FDMA environment.…”

Section: Introductionmentioning

confidence: 99%

Refined iterative detection of coded SC-FDMA based transmission systems

Gazda

Drotár

Kocur

et al. 2010

20th International Conference Radioelektronika 2010

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Single Carrier Frequency Division Multiplex (SC-FDMA) is the modulation technique being considered in Long Term Evolution (LTE) proposal announced recently. The reason for this stems from the fact that SC-FDMA envelope fluctuation is considerable lower than that of conventional Orthogonal Frequency Division Multiplex (OFDM) technique, thereby results in less sensitivity to the nonlinear distortion introduced by the High Power Amplifiers (HPA). However, in order to achieve high spectrum and power efficiency of the transmission, it is convinient to look for additional strategies to further improve the SC-FDMA robustness against the nonlinear amplification. Therefore, in this paper we introduce the technique based on the iterative detection of nonlinearly distorted SC-FDMA symbols that aims to tackle the nonlinear distortion in an iterative fashion. The performance analysis show the considerable performance improvements of presented technique performing over frequency selective channels.

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