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Title: :  DOPPLER ESTIMATION AND MITIGATION IN OFDM
PaperId: :  17035
Published in:   International Journal Of Advance Research And Innovative Ideas In Education
Publisher:   IJARIIE
e-ISSN:   2395-4396
Volume/Issue:    Volume 8 Issue 3 2022
DUI:    16.0415/IJARIIE-17035
Licence: :   IJARIIE is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.

Author NameAuthor Institute
Dr Vaibhav Bhushan TyagiISBAT University,Kampala, Uganda.

Abstract

Communication Engineering
Hyperbolic chirp, Doppler estimation, preamble, postamble, autocorrelation
Due to relative velocity of obstacles with respect to transmitter or receiver packet get compress or expend according to Vr relative velocity. This is Doppler disturbs orthogonality of sub carriers and must be estimated and mitigate at receiver. Since the Doppler encountered is frequency dependent, it is non-uniform for OFDM as it involves a range of frequencies [1]. A two-step approach to mitigating the frequency-dependent Doppler drifts due to fast-varying acoustic acoustic channels is adopted: Non-uniform Doppler compensation via re-sampling. This step converts a “wideband” problem into a “narrowband” problem. High-resolution uniform compensation on residual Doppler by modeling it as induced by carrier frequency offset (CFO)[2]. This step fine-tunes the CFO term corresponding to a “narrowband” model for best ICI reduction. MATLAB simulation for doppler estimation and its mitigation ushing hyperbolic chirp signal is presented in this paper.

Citations

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IJARIIE Dr Vaibhav Bhushan Tyagi. "DOPPLER ESTIMATION AND MITIGATION IN OFDM" International Journal Of Advance Research And Innovative Ideas In Education Volume 8 Issue 3 2022 Page 2594-2601
MLA Dr Vaibhav Bhushan Tyagi. "DOPPLER ESTIMATION AND MITIGATION IN OFDM." International Journal Of Advance Research And Innovative Ideas In Education 8.3(2022) : 2594-2601.
APA Dr Vaibhav Bhushan Tyagi. (2022). DOPPLER ESTIMATION AND MITIGATION IN OFDM. International Journal Of Advance Research And Innovative Ideas In Education, 8(3), 2594-2601.
Chicago Dr Vaibhav Bhushan Tyagi. "DOPPLER ESTIMATION AND MITIGATION IN OFDM." International Journal Of Advance Research And Innovative Ideas In Education 8, no. 3 (2022) : 2594-2601.
Oxford Dr Vaibhav Bhushan Tyagi. 'DOPPLER ESTIMATION AND MITIGATION IN OFDM', International Journal Of Advance Research And Innovative Ideas In Education, vol. 8, no. 3, 2022, p. 2594-2601. Available from IJARIIE, http://ijariie.com/AdminUploadPdf/DOPPLER_ESTIMATION_AND_MITIGATION_IN_OFDM_ijariie17035.pdf (Accessed : 13 November 2022).
Harvard Dr Vaibhav Bhushan Tyagi. (2022) 'DOPPLER ESTIMATION AND MITIGATION IN OFDM', International Journal Of Advance Research And Innovative Ideas In Education, 8(3), pp. 2594-2601IJARIIE [Online]. Available at: http://ijariie.com/AdminUploadPdf/DOPPLER_ESTIMATION_AND_MITIGATION_IN_OFDM_ijariie17035.pdf (Accessed : 13 November 2022)
IEEE Dr Vaibhav Bhushan Tyagi, "DOPPLER ESTIMATION AND MITIGATION IN OFDM," International Journal Of Advance Research And Innovative Ideas In Education, vol. 8, no. 3, pp. 2594-2601, May-Jun 2022. [Online]. Available: http://ijariie.com/AdminUploadPdf/DOPPLER_ESTIMATION_AND_MITIGATION_IN_OFDM_ijariie17035.pdf [Accessed : 13 November 2022].
Turabian Dr Vaibhav Bhushan Tyagi. "DOPPLER ESTIMATION AND MITIGATION IN OFDM." International Journal Of Advance Research And Innovative Ideas In Education [Online]. volume 8 number 3 (13 November 2022).
Vancouver Dr Vaibhav Bhushan Tyagi. DOPPLER ESTIMATION AND MITIGATION IN OFDM. International Journal Of Advance Research And Innovative Ideas In Education [Internet]. 2022 [Cited : 13 November 2022]; 8(3) : 2594-2601. Available from: http://ijariie.com/AdminUploadPdf/DOPPLER_ESTIMATION_AND_MITIGATION_IN_OFDM_ijariie17035.pdf
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