Probability of error calculation of OFDM systems with frequency offset

Sathananthan, K.; Tellambura, Chintha

doi:10.1109/26.966051

Cited by 249 publications

(151 citation statements)

References 9 publications

(14 reference statements)

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“…From [32], it can be noticed that OFDM is sensitive to CFO which destroy orthogonality and cause ICI. However, although CFO and phase noise are caused by dierent properties of the LO, the eects of both two eects can be seen as similar.…”

Section: Carrier Frequency Osetsmentioning

confidence: 99%

Ofdm Interference Analysis With Dirty Rf

Zheng¹

2011

Proceedings of the 1st International Conference on Pervasive and Embedded Computing and Communication Systems

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When passing through the RF analog electronics devices of the transceiver, the information signal is subject to various distortions named 'dirty RF' eects. Some distortions are inherent to analog radio devices, such as high power ampliers (HPA) at the transmitter and DAC/ADC. Others, such as phase noise and I/Q imbalance, result from various impairments in the transceiver RF front end devices. Regardless of the nature, each factor degrades the communication system performance.Owning to a number of advantages, such as the ability to provide a high data rate in a fading environment and relatively simple structure of the frequency domain equalizer, OFDM is considered as a strong candidate for future wireless broadband systems. OFDM performance, however, is very sensitive to the above RF impairments, such as nonlinear distortions from HPA, I/Q imbalance, phase noise etc.While inherently observed in any transceiver, in the most of part the dirty RF eects so far have been analyzed separately and techniques for their mitigation have been elaborated separately too. Meanwhile, when aecting jointly the above impairments may strengthen each other and moreover, techniques for mitigation of one factor may enhance the impact of another one. Kulkiessaan läpi lähetin-vastaanottimen analogisten RF-osien, informaatiosignaali altistuu lukuisille vääristymille, joita kutsutaan dirty RF -ilmiöiksi. Jotkin vääristymät ovat luontaisia analogisille radiolaitteille, kuten tehovahvistimille (HPA) lähettimessä ja DA/AD -muuntimille. Toiset, kuten vaihekohina ja I/Q-epätasapaino ovat puolestaan seurausta lähetin-vastaanottimen RF-etupään aiheuttamasta signaalin laadun heikkenemisestä. Riippumatta vääristymän aiheuttajasta, kukin edellä mainittu tekijä alentaa tietoliikennejärjestelmän suorituskykyä.Johtuen lukuisista eduistaan, kuten kyvystään tarjota korkeita datanopeuksia häipyvässä ympäristössä sekä verrattain yksinkertaisesta taajuusalueen ekvalisaattorin rakenteesta, OFDM:ää pidetään vahvana ehdokkaana tulevaisuuden langattomiin laajakaistajärjestelmiin. OFDM:n suorituskyky on kuitenkin erittäin herkkä yllä mainitulle RFosien aiheuttamalle signaalin laadun heikkenemiselle, kuten tehovahvistimen, I/Q-epätasapainon, vaihekohinan jne. aiheuttamille epälineaarisille vääristymille.Vaikka RF-ilmiöt ovatkin osa jokaista lähetin-vastaanotinta, dirty RF -ilmiöitä kuten myös menetelmiä niiden vähentämiseksi, on analysoitu yksittäin, muista irrallaan. Kuitenkin, vaikuttaessaan yhtäaikaa, em. ilmiöt voivat vahvistaa toistaan ja lisäksi yhden ilmiön heikentämiseen tähtäävän menetelmän käyttö voi vahvistaa toista ilmiötä.Tämän työn tavoitteena on luoda simulaatiomalli ja analysoida OFDM:ää, kun I/Q-epätasapaino-, tehovahvistin-ja vaihekohina-ilmiöt otetaan samanaikaisesti huomioon.

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Section: Carrier Frequency Osetsmentioning

confidence: 99%

Ofdm Interference Analysis With Dirty Rf

Zheng¹

2011

Proceedings of the 1st International Conference on Pervasive and Embedded Computing and Communication Systems

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“…If ICI in not properly compensated it results in power leakage among the subcarriers and orthogonality between them will be lost. Result in degradation of system performance is observed [3].…”

Section: Introductionmentioning

confidence: 99%

Improved Systematic Study to show the Impact of CFO one the Presentation of LTE Uplink

Mehan¹,

Bagwari²

2017

IJWMCIS

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“…A precise numerical technique to optimize BER and Inter-Carrier Interference (ICI) caused by carrier frequency offset occur in Orthogonal Frequency Division Multiplexing (OFDM) presented in [20]. For the 10 -1 randomly generated OFDM frame to obtain the error rate.…”

Section: Table1 Effect Of Nc Technique On Minimum Ber and Power Modumentioning

confidence: 99%

A Review on Minimization of BER and Power of Ad hoc Network

Choudhary¹

2015

IJIRCCE

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ABSTRACT:Over the last decade, a large number of pioneering works have provided foundations for both theory and applications of Wireless Ad hoc Networks (WLAN). As ad hoc technology is becoming the demand of present and future trends that needs for a reliable communication link having minimum BER and power. This review work presents the impact of mobility, and energy efficiency and clustering on optimization of Bit Error Rate (BER) and power as well as on throughput. An analysis review is made on Network coding scheme to optimize BER and throughput. And finally how these factors vary in WLAN is discussed in conclusion.

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Probability of error calculation of OFDM systems with frequency offset

Cited by 249 publications

References 9 publications

Ofdm Interference Analysis With Dirty Rf

Ofdm Interference Analysis With Dirty Rf

Improved Systematic Study to show the Impact of CFO one the Presentation of LTE Uplink

A Review on Minimization of BER and Power of Ad hoc Network

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