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BER Analysis of LTE-4G Standard Rayleigh Flat Fading Channel with Adaptive Modulation

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Innovations in Electronics and Communication Engineering

Part of the book series: Lecture Notes in Networks and Systems ((LNNS,volume 33))

Abstract

It is a challenging task to improve reliable and high-speed data communication between Transmitter and Receiver. Achieving high data rate using block codes and convolution codes is still questionable through a wireless channel. Turbo codes are a class of high performance forward error correction (FEC) codes with OFDM with adaptive Modulation for 4G and LTE applications. In this paper, BER analysis is carried out for TURBO-coded OFDM data with adaptive modulation mode switching using BPSK, QPSK, 16QAM, and 64QAM. Adaptive modulation scheme is assisted by decision feedback equalizer (DFE) which controls modulation mode. Its output SNR is used as a switching metric. DFE is used to select modulation mode. It is observed that average spectral efficiency (bits per second/Hz) is much higher for adaptive modulation scheme. For higher modulation scheme average spectral efficiency is gradually increases up to 40 dB, that indicates its throughput is much higher in comparison with fixed modulation modes.

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Authors and Affiliations

  1. G.V.P. College of Engineering (Autonomous), Visakhapatnam, India

    Rajeswara Rao Gangula

  2. Andhra University college of Engineering, Visakhapatnam, India

    Sasibhushana Rao Gottapu

Authors
  1. Rajeswara Rao Gangula
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  2. Sasibhushana Rao Gottapu
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Corresponding author

Correspondence to Rajeswara Rao Gangula .

Editor information

Editors and Affiliations

  1. Guru Nanak Institutions, Ibrahimpatnam, Telangana, India

    H. S. Saini

  2. Guru Nanak Institutions Technical Campus, Ibrahimpatnam, Telangana, India

    Ravi Kishore Singh

  3. Department of Electrical and Computer Engineering, Rutgers University, New Brunswick, NJ, USA

    Vishal M. Patel

  4. Department of Electronics and Communication Engineering, Guru Nanak Institutions Technical Campus, Ibrahimpatnam, Telangana, India

    K. Santhi

  5. Research and Development, Guru Nanak Institutions Technical Campus, Ibrahimpatnam, Telangana, India

    S.V. Ranganayakulu

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© 2019 Springer Nature Singapore Pte Ltd.

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Cite this paper

Gangula, R.R., Gottapu, S.R. (2019). BER Analysis of LTE-4G Standard Rayleigh Flat Fading Channel with Adaptive Modulation. In: Saini, H., Singh, R., Patel, V., Santhi, K., Ranganayakulu, S. (eds) Innovations in Electronics and Communication Engineering. Lecture Notes in Networks and Systems, vol 33. Springer, Singapore. https://doi.org/10.1007/978-981-10-8204-7_36

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  • DOI: https://doi.org/10.1007/978-981-10-8204-7_36

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  • Publisher Name: Springer, Singapore

  • Print ISBN: 978-981-10-8203-0

  • Online ISBN: 978-981-10-8204-7

  • eBook Packages: EngineeringEngineering (R0)

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