NDLI: Nonlinear noise estimation and compensation in GFDM based communication systems for cognitive radio networks

Content Provider	IEEE Xplore Digital Library
Author	Sendrei, L. Marchevsky, S.
Copyright Year	2015
Description	Author affiliation: Dept. of Electron. & Multimedia Commun., Tech. Univ. of Kosice, Kosice, Slovakia (Sendrei, L.; Marchevsky, S.)
Abstract	Generalized Frequency Division Multiplexing (GFDM) might be a promising candidate for deployment in cognitive radio networks and for 5G wireless communication. It is a non-orthogonal multicarrier modulation scheme based on flexible pulse shaping. However, given by the high signal amplitude fluctuation, the performance of GFDM systems is highly degraded due to the distortion caused by the nonlinear nature of high power amplifier (HPA). In this article, we investigate the effects of nonlinearities in GFDM and introduce an iterative receiver scheme to reduce the error probability of GFDM signals undergoing nonlinear amplification. The proposed technique is based on successive estimation and cancellation of the in-band distortion introduced by the nonlinear nature of the HPA characteristics. The performance improvement of the iterative receiver structure is expressed by the bit error performance and error vector magnitude.
Starting Page	313
Ending Page	316
File Size	225187
Page Count	4
File Format	PDF
ISBN	9781479981175
e-ISBN	9781479981199
DOI	10.1109/RADIOELEK.2015.7129052
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-04-21
Publisher Place	Czech Republic
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	OFDM Bit error rate Noise Modulation Estimation Receivers nonlinearities HPA GFDM Frequency division multiplexing
Content Type	Text
Resource Type	Article

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