ETRI-Knowledge Sharing Plaform

KOREAN
논문 검색
Type SCI
Year ~ Keyword

Detail

Conference Paper Two Stages Method for IQ Imbalance Compensation in Multi-FA OFDM System
Cited 0 time in scopus Share share facebook twitter linkedin kakaostory
Authors
Young Jin Moon, Jun Woo Kim, Jang Won Moon, Young Su Lee, Seung Jae Bahng, Kyung Yeol Sohn, Hoon Lee
Issue Date
2020-10
Citation
International Conference on Information and Communication Technology Convergence (ICTC) 2020, pp.1420-1422
Publisher
IEEE
Language
English
Type
Conference Paper
DOI
https://dx.doi.org/10.1109/ICTC49870.2020.9289484
Abstract
In Multi-FA based OFDM system that processes multiple FAs in parallel, IQ imbalance components can be generated in several points, where we can largely classify IQ imbalance component occurring within single FA and IQ imbalance component occurring between multiple FAs. In order to compensate for performance degradation owing to IQ imbalance components in the Multi-FA OFDM system, we propose two stages method considering two IQ imbalance components in this paper. The first IQ imbalance component occurring within single FA is compensated by the IQ matching algorithm in time domain and the second IQ imbalance component occurring between multiple FAs is compensated by the IQ mismatching canceller in frequency domain. We propose frame structure in which the proposed algorithm is adopted and show the EVM performance on AWGN environment through link level simulation in which the IQ matcher only, the IQ canceller only and the IQ matcher and canceller are applied respectively.
KSP Keywords
Frame structure, IQ imbalance compensation, Link level simulation, OFDM systems, frequency domain(FD), matching algorithm, performance degradation, time-domain