System- and circuit-level optimization of PLL designs for DVB-T/H receivers

Tchamov, Nikolay N.; Syrjälä, Ville; Rinne, J.; Valkama, Mikko; Zou, Yuexian; Renfors, Markku

doi:10.1007/s10470-011-9823-2

Cited by 10 publications

(5 citation statements)

References 27 publications

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“…The effect of flicker noise on the PN performance is visible above the PLL bandwidth [48]. A linear timeinvariant phase domain PLL model is considered in [49] that assumes white and flicker noises for free-running VCO and white noise for free-running reference oscillator. According to [42], the single-sided PSD of a baseband equivalent freerunning VCO, specified in dBc/Hz, in the presence of white and flicker noises is derived as…”

Section: ) Pll Synthesizermentioning

confidence: 99%

“…where γ c indicates deviation frequency from the flicker PSD 1/f slope. Note that γ c , c w and c f coefficients can be obtained from two single point single-sided PSD measurements of VCO [42], [49]. In addition, we can derive the single-sided PSD of a baseband equivalent free-running reference oscillator with (5) without flicker noise, S f (f ) = 0.…”

Section: ) Pll Synthesizermentioning

confidence: 99%

“…In addition, we can derive the single-sided PSD of a baseband equivalent free-running reference oscillator with (5) without flicker noise, S f (f ) = 0. Moreover, the authors in [49] combine the PSD of VCO and reference oscillator and derive the output PSD of a 3-rd order chargepump PLL synthesizer. Note that the Lorentzian spectrum for the free-running oscillator in ( 4) is based on a white noise source without considering the flicker noise sources.…”

Section: ) Pll Synthesizermentioning

confidence: 99%

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RF Impairments in Wireless Transceivers: Phase Noise, CFO, and IQ Imbalance – A Survey

Mohammadian

Tellambura

2021

IEEE Access

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Wireless transceivers for mass-market applications must be cost effective. We may achieve this goal by deploying non-ideal low-cost radio frequency (RF) analog components. However, their imperfections may result in RF impairments, including phase noise (PN), carrier frequency offset (CFO), and in-phase (I) and quadrature-phase (Q) imbalance. These impairments introduce in-band and out-of-band interference terms and degrade the performance of wireless systems. In this survey, we present RF-impairment signal models and discuss their impacts. Moreover, we review RF-impairment estimation and compensation in singlecarrier (SC) and multicarrier systems, especially orthogonal frequency division multiplexing (OFDM). Furthermore, we discuss the effects of the RF impairments in already-established wireless technologies, e.g., multiple-input multiple-output (MIMO), massive MIMO, full-duplex, and millimeter-wave communications and review existing estimation and compensation algorithms. Finally, future research directions investigate the RF impairments in emerging technologies, including cell-free massive MIMO communications, nonorthogonal multicarrier systems, non-orthogonal multiple access (NOMA), ambient backscatter communications, and intelligent reflecting surface (IRS)-assisted communications. Furthermore, we discuss artificial intelligence (AI) approaches for developing estimation and compensation algorithms for RF impairments.

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Section: ) Pll Synthesizermentioning

confidence: 99%

Section: ) Pll Synthesizermentioning

confidence: 99%

Section: ) Pll Synthesizermentioning

confidence: 99%

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RF Impairments in Wireless Transceivers: Phase Noise, CFO, and IQ Imbalance – A Survey

Mohammadian

Tellambura

2021

IEEE Access

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“…In [1], the PN effects are analysed in very detailed manner for freerunning oscillators, but small phase approximation is used. Also, in [2] and [3], the effect has been studied for phaselocked-loop based oscillators with small phase approximation. In [3], simplified OFDMA case is considered.…”

Section: Introductionmentioning

confidence: 99%

“…Also, in [2] and [3], the effect has been studied for phaselocked-loop based oscillators with small phase approximation. In [3], simplified OFDMA case is considered. The study is limited to 3-user downlink case with only receiver PN taken into account.…”

Section: Introductionmentioning

confidence: 99%