Design and Performance Evaluation of OFDM System Using Ripple Window for Effective OOB Power Reduction 


Vol. 44,  No. 4, pp. 644-651, Apr.  2019
10.7840/kics.2019.44.4.644


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  Abstract

In this paper, we propose a novel orthogonal frequency division multiplexing system using a ripple window (RW-OFDM) that minimizes the loss of time resources while effectively reducing out-of-band (OOB) power. The proposed system uses a ripple window and improves the time-frequency localization characteristics through overlap transmission of symbols. Simulation results show that the RW-OFDM system has a similar peak-to-average power ratio characteristic to conventional CP-OFDM using general windows and the OOB power is about 100 dB lower than the conventional system. In the additive white Gaussian noise environment, bit error rate (BER) performance of the RW-OFDM system is similar to that of the CP-OFDM system using existing windows. In the Rayleigh fading channel, the RW-OFDM system using a low level modulation has a performance difference of less than 1dB from the existing system under the BER condition of 10^-4. Furthermore, when the symbols are overlapped, the proposed system can improve the time resource loss by about 40% compared with the conventional system.

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  Cite this article

[IEEE Style]

C. An and H. Ryu, "Design and Performance Evaluation of OFDM System Using Ripple Window for Effective OOB Power Reduction," The Journal of Korean Institute of Communications and Information Sciences, vol. 44, no. 4, pp. 644-651, 2019. DOI: 10.7840/kics.2019.44.4.644.

[ACM Style]

Changyoung An and Heung-Gyoon Ryu. 2019. Design and Performance Evaluation of OFDM System Using Ripple Window for Effective OOB Power Reduction. The Journal of Korean Institute of Communications and Information Sciences, 44, 4, (2019), 644-651. DOI: 10.7840/kics.2019.44.4.644.

[KICS Style]

Changyoung An and Heung-Gyoon Ryu, "Design and Performance Evaluation of OFDM System Using Ripple Window for Effective OOB Power Reduction," The Journal of Korean Institute of Communications and Information Sciences, vol. 44, no. 4, pp. 644-651, 4. 2019. (https://doi.org/10.7840/kics.2019.44.4.644)

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pISSN : 1226 - 4717
eISSN : 2287 - 3880