PAPR and out-of-band power reduction in OFDM-based cognitive radios

P. Raghava Lasya; M. Sathish Kumar

doi:10.1109/SPACES.2015.7058309

PAPR and out-of-band power reduction in OFDM-based cognitive radios

P. Raghava Lasya, M. Sathish Kumar

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

2 Citations (Scopus)

Abstract

One of the interesting features of cognitive radio (CR) systems is their ability to provide dynamic spectrum access even in the licensed spectral bands; wherein they should be strictly causing no interference to the licensed users or among themselves. Orthogonal frequency-division multiplexing (OFDM) is considered for CR user transmission because of its flexible operation in frequency band switching; but suffers from high peak-to-average power ratio (PAPR). Hence, a transmission method where it can cause minimum interference with lower PAPR is obtained. In this paper, a better method to reduce out-of-band (OOB) power as well as PAPR is modeled by combining spectral precoding which aims at OOB radiation suppression; and PAPR reduction techniques such as selected mapping (SLM) technique and iterative clipping and filtering (ICF). The performance of these methods are discussed in terms of power spectral densities (PSD) and complementary cumulative distribution function (CCDF) of PAPR.

Original language	English
Title of host publication	International Conference on Signal Processing and Communication Engineering Systems - Proceedings of SPACES 2015, in Association with IEEE
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	473-476
Number of pages	4
ISBN (Electronic)	9781479961085
DOIs	https://doi.org/10.1109/SPACES.2015.7058309
Publication status	Published - 10-03-2015
Event	4th International Conference on Signal Processing and Communication Engineering Systems, SPACES 2015 - In Association with IEEE - Andhra Pradesh, India Duration: 02-01-2015 → 03-01-2015

Conference

Conference	4th International Conference on Signal Processing and Communication Engineering Systems, SPACES 2015 - In Association with IEEE
Country/Territory	India
City	Andhra Pradesh
Period	02-01-15 → 03-01-15

All Science Journal Classification (ASJC) codes

Computer Networks and Communications
Control and Systems Engineering
Signal Processing

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10.1109/SPACES.2015.7058309

Cite this

Lasya, P. R., & Kumar, M. S. (2015). PAPR and out-of-band power reduction in OFDM-based cognitive radios. In International Conference on Signal Processing and Communication Engineering Systems - Proceedings of SPACES 2015, in Association with IEEE (pp. 473-476). [7058309] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/SPACES.2015.7058309

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abstract = "One of the interesting features of cognitive radio (CR) systems is their ability to provide dynamic spectrum access even in the licensed spectral bands; wherein they should be strictly causing no interference to the licensed users or among themselves. Orthogonal frequency-division multiplexing (OFDM) is considered for CR user transmission because of its flexible operation in frequency band switching; but suffers from high peak-to-average power ratio (PAPR). Hence, a transmission method where it can cause minimum interference with lower PAPR is obtained. In this paper, a better method to reduce out-of-band (OOB) power as well as PAPR is modeled by combining spectral precoding which aims at OOB radiation suppression; and PAPR reduction techniques such as selected mapping (SLM) technique and iterative clipping and filtering (ICF). The performance of these methods are discussed in terms of power spectral densities (PSD) and complementary cumulative distribution function (CCDF) of PAPR.",

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Lasya, PR & Kumar, MS 2015, PAPR and out-of-band power reduction in OFDM-based cognitive radios. in International Conference on Signal Processing and Communication Engineering Systems - Proceedings of SPACES 2015, in Association with IEEE., 7058309, Institute of Electrical and Electronics Engineers Inc., pp. 473-476, 4th International Conference on Signal Processing and Communication Engineering Systems, SPACES 2015 - In Association with IEEE, Andhra Pradesh, India, 02-01-15. https://doi.org/10.1109/SPACES.2015.7058309

PAPR and out-of-band power reduction in OFDM-based cognitive radios. / Lasya, P. Raghava; Kumar, M. Sathish.
International Conference on Signal Processing and Communication Engineering Systems - Proceedings of SPACES 2015, in Association with IEEE. Institute of Electrical and Electronics Engineers Inc., 2015. p. 473-476 7058309.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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N2 - One of the interesting features of cognitive radio (CR) systems is their ability to provide dynamic spectrum access even in the licensed spectral bands; wherein they should be strictly causing no interference to the licensed users or among themselves. Orthogonal frequency-division multiplexing (OFDM) is considered for CR user transmission because of its flexible operation in frequency band switching; but suffers from high peak-to-average power ratio (PAPR). Hence, a transmission method where it can cause minimum interference with lower PAPR is obtained. In this paper, a better method to reduce out-of-band (OOB) power as well as PAPR is modeled by combining spectral precoding which aims at OOB radiation suppression; and PAPR reduction techniques such as selected mapping (SLM) technique and iterative clipping and filtering (ICF). The performance of these methods are discussed in terms of power spectral densities (PSD) and complementary cumulative distribution function (CCDF) of PAPR.

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PAPR and out-of-band power reduction in OFDM-based cognitive radios

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