The Role of AM-to-PM Conversion in Memoryless Nonlinear Systems

Minkoff, J.

doi:10.1109/tcom.1985.1096262

Cited by 86 publications

(53 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…If the number of subcarriers is sufficiently large, x(n) becomes Gaussian and the PA output signal can be modeled according to the extended version of the Bussgang theorem [27] as…”

Section: Signal Model For the Two-hop Relay Linkmentioning

confidence: 99%

Full-duplex amplify-and-forward relays with optimized transmission power under imperfect transceiver electronics

Gonzalez

Gregorio

Cousseau

et al. 2017

J Wireless Com Network

View full text Add to dashboard Cite

In-band full-duplex (FD) relays are useful for extending coverage areas and increasing overall throughput in wireless networks. The main technical difficulty hindering their implementation and use is their inherent self-interference (SI), generated due to simultaneous in-band reception and forwarding. Efficient SI mitigation is a practical necessity, and the imperfections in transceiver electronics, from which power amplifier (PA) non-linearity is one of the most serious phenomena, have to be taken into account in order to not limit the performance of such techniques. The magnitude of the distortion introduced by the PA depends on the relay input back-off (IBO) whose optimization for alleviating the effect of PA non-linearity is the main research objective in this paper. In particular, although plain signal-to-noise ratio (SNR) at the destination obviously increases when the IBO decreases, increased transmit power also strengthens the non-linear distortion leading to decreasing overall signal-to-interference-plus-noise ratio (SINR). We develop expressions for bounding the optimal IBO setting that maximizes the SINR at the destination, considering all relevant hardware impairments and SI cancellation with I/Q imbalance compensation. We provide closed-form solutions for the soft-limiter PA model and numerical results for more general PA models. Finally, the derived IBO bounds are compared with the numerical maximization of the SINR and the minimization of the bit-error rate (BER) to demonstrate that the theoretical bound settings provide good approximations to the optimal one.

show abstract

“…If the number of subcarriers is sufficiently large, x(n) becomes Gaussian and the PA output signal can be modeled according to the extended version of the Bussgang theorem [27] as…”

Section: Signal Model For the Two-hop Relay Linkmentioning

confidence: 99%

Full-duplex amplify-and-forward relays with optimized transmission power under imperfect transceiver electronics

Gonzalez

Gregorio

Cousseau

et al. 2017

J Wireless Com Network

View full text Add to dashboard Cite

show abstract

“…Here the input and output are expressed as the back off from the corresponding saturation power. This saturation power is defined as where the derivative of the output gain first reaches 0.1, [12].As it happens the AM-PM distortion is negligible over the dynamic range of interest [11]. The signal modelled is an un-coded IEEE 802.11a OFDM signal with 16-QAM applied.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Inter-Modulation Products and Nonlinear Distortion in RF OFDM Transmitter Systems

O’Dróma

Lei

Bertrán

et al. 2009

VTC Spring 2009 - IEEE 69th Vehicular Technology Conference

View full text Add to dashboard Cite

show abstract

“…The most popular model used to describe the AM-AM and AM-PM conversions is the behavioral quadrature model [3,[4][5][6]12]. This method was developed assuming two conditions.…”

Section: Introductionmentioning

confidence: 99%

The AM-PM conversion model as a phase statement of compression and desensitization in highly linear multicarrier power amplifiers

Jardón‐Aguilar

Tirado‐Méndez

Galván-Tejada

et al. 2006

Int J RF and Microwave Comp Aid Eng

View full text Add to dashboard Cite

In this article, a novel AM-PM conversion model is compared to the classical behavioral quadrature one. The proposed model can be seen as a phase statement of compression and desensitization. These two models are closely related. However, the proposed method does not have the limitations considered in the classical model, which can be seen in the investigation of the AM-PM conversion introduced in a given carrier due to the presence of several signals, as is the case in multicarrier amplifiers. The method allows us to find the design conditions to reduce the AM-PM conversion introduced by nonlinear circuits. To show the dependence of the AM-PM conversion as a function of several input tones and frequency spacing, which is not considered in the classical model, the performance of medium power BJT and GaAsFET operating at 900 and 1900 MHz, is investigated when one, two, and three tones are simultaneously fed at the input.

show abstract

The Role of AM-to-PM Conversion in Memoryless Nonlinear Systems

Cited by 86 publications

References 8 publications

Full-duplex amplify-and-forward relays with optimized transmission power under imperfect transceiver electronics

Full-duplex amplify-and-forward relays with optimized transmission power under imperfect transceiver electronics

Analysis of Inter-Modulation Products and Nonlinear Distortion in RF OFDM Transmitter Systems

The AM-PM conversion model as a phase statement of compression and desensitization in highly linear multicarrier power amplifiers

Contact Info

Product

Resources

About