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Improved Interference Cancelation Channel Estimation Method in OFDMOQAM System
Joint Authors
Xue, Lunsheng
Qiu, Shangfei
Wu, Peng
Source
Mathematical Problems in Engineering
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-11-01
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
To the significant amount of pilot overhead of the interference cancelation methods in orthogonal frequency division multiplexing (OFDM) based on offset quadrature amplitude modulation (OFDM/OQAM) system, we proposed an improved interference cancelation method (ICM) for OFDM/OQAM system in this paper.
In this method, we use the auxiliary pilot (AP) to eliminate the influence of the intersymbol interference on channel estimation, which can reduce the pilot overhead of OFDM/OQAM system significantly.
At the same time, to improve the channel estimation performance, we analyze the source of the intrinsic interference of system and its distribution in time and frequency domain, then, we reset the interference cancelation range of AP, which can cancel more intrinsic interference for OFDM/OQAM system.
According to the results of performance analysis, compared to the conventional interference cancelation methods, the proposed method performs better in terms of energy efficiency and spectral efficiency.
Also, the simulation results of the proposed method show that the proposed method can outperform traditional interference cancelation methods in channel estimation performance.
American Psychological Association (APA)
Qiu, Shangfei& Xue, Lunsheng& Wu, Peng. 2018. Improved Interference Cancelation Channel Estimation Method in OFDMOQAM System. Mathematical Problems in Engineering،Vol. 2018, no. 2018, pp.1-9.
https://search.emarefa.net/detail/BIM-1208706
Modern Language Association (MLA)
Qiu, Shangfei…[et al.]. Improved Interference Cancelation Channel Estimation Method in OFDMOQAM System. Mathematical Problems in Engineering No. 2018 (2018), pp.1-9.
https://search.emarefa.net/detail/BIM-1208706
American Medical Association (AMA)
Qiu, Shangfei& Xue, Lunsheng& Wu, Peng. Improved Interference Cancelation Channel Estimation Method in OFDMOQAM System. Mathematical Problems in Engineering. 2018. Vol. 2018, no. 2018, pp.1-9.
https://search.emarefa.net/detail/BIM-1208706
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1208706