A Novel Residual Carrier Frequency Offset Estimation Approach for LoRa Systems

Guan, Pengxin; Yu, Hongkang; Zhu, Hongfei; Zhao, Yuping

doi:10.1109/icccs49078.2020.9118416

Cited by 4 publications

(7 citation statements)

References 9 publications

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“…In the range A i and D i , the point B i is chosen in such a way that the ratio of the intervals [B i : D i ] and [A i : B i ] is equal to the proportion of the golden section 1.618. Similar to point B i , the position of point C i is calculated (detailed formulas for calculating are given in [2]). At points B i and C i the value of the function ( 16) is calculated:…”

Section: Input Chirps Containing Frequency Offset δFmentioning

confidence: 99%

“…is equal to the proportion of the golden section 1.618. Similar to point B i , the position of point C i is calculated (detailed formulas for calculating are given in [2]). At points B i and C i the value of the function ( 16) is calculated:…”

Section: Input Chirps Containing Frequency Offset δFmentioning

confidence: 99%

“…LPWANs determine the category of wireless communications technology, which recently acquired a significant impulse and has been the subject of much modern research work [1,2]. Organizations in the development of industry, academies, and standards have devoted significant efforts on LPWANs in recent years [3].…”

Section: Introductionmentioning

confidence: 99%

“…Considering the GSS method allows one to calculate the fine frequency offset estimation where an iterative mathematical algorithm GSS is applied to find the extremum of the MLF. It is assumed that a coarse estimation is performed using the Ghanaatian method [2].…”

mentioning

confidence: 99%

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Compensation of the Frequency Offset in Communication Systems with LoRa Modulation

2022

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This study focused on methods estimation and compensation frequency offset in communication systems with LoRa modulation. LoRa being used in IoT applications rapidly expands its markets. The article discusses three methods for estimation and compensation frequency offset as well as details of the comparative analysis made. Aside from the well-known methods by Ghanaatian and Golden Section Search (GSS), the third method is offered by the authors of the article and represents an improved version of the method proposed by Ghanaatian. The proposed method is based on a symmetric processing signal that is divided into two parts. The advantages and drawbacks of the considered methods are described. As a result of the performed study, a software model was developed, the dependence of the root mean-square error (RMSE) estimation of the frequency offset, and cumulative density function (CDF) of the frequency estimation error was calculated. Modeling was performed under identical conditions. The frequency offset accuracy provided by the proposed method exceeded the accuracy of the considered methods.

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Section: Input Chirps Containing Frequency Offset δFmentioning

confidence: 99%

Section: Input Chirps Containing Frequency Offset δFmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

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Compensation of the Frequency Offset in Communication Systems with LoRa Modulation

2022

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“…Однако помехоустойчивость подобных систем может значительно снижаться, так как ошибки временной и частотной синхронизации оказывают негативное воздействие на результат демодуляции ЛЧМ сигналов [11][12][13][14][15][16]. Существует множество методов для оценки и коррекции таких типов ошибок [11][12][13][14][15][16].…”

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Algorithm for joint estimation and compensation of signals time and frequency synchronization errors with estimation accuracy control

Мухамадиев,

Рогожников,

Рехаб

et al. 2024

RENSIT

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Представлен анализ влияния ошибок синхронизации на обработку сигнала, дан обзор существующих подходов оценки и компенсации ошибок временной и частотной синхронизации, предложен новый подход, позволяющий совместно оценить смещения по времени и частоте, обеспечить более точную оценку по сравнению с существующими аналогами и, более того, регулировать точность оценки дробной ошибки и временной, и частотной синхронизации.

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Start of Packet Detection and Synchronization for LoraWAN Modulated Signals

Vangelista

Cattapan

2022

IEEE Trans. Wireless Commun.

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A Novel Residual Carrier Frequency Offset Estimation Approach for LoRa Systems

Cited by 4 publications

References 9 publications

Compensation of the Frequency Offset in Communication Systems with LoRa Modulation

Compensation of the Frequency Offset in Communication Systems with LoRa Modulation

Algorithm for joint estimation and compensation of signals time and frequency synchronization errors with estimation accuracy control

Start of Packet Detection and Synchronization for LoraWAN Modulated Signals

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