NDLI: Analysis and suppression of phase noise and IQ imbalance for dual-band MIMO-OFDM

Content Provider	IEEE Xplore Digital Library
Author	Junyeong Bok Heung-Gyoon Ryu
Copyright Year	2014
Description	Author affiliation: Dept. of Electron. & Eng., Chungbuk Nat. Univ., Cheongju, South Korea (Junyeong Bok; Heung-Gyoon Ryu)
Abstract	Carrier aggregation (CA) schemes and multiple antenna techniques are used for the orthogonal frequency division multiplexing (OFDM) in order to highly improve the communication capacity in LTE-advanced. In order to implement the multi-band system based on multiple-input multiple-output (MIMO) technique, a wideband frequency synthesizer is required. But, when using broadband frequency synthesizer, serious phase noise problem occurs at the transceiver. In addition, when using MIMO scheme, IQ imbalance is a critical impairment as it causes inter carrier interferences (ICI), that results in severe degradation of the receive performance. Therefore, a joint phase noise and IQ imbalance compensation technique is needed at the receiver for LTE-advanced system with CA and MIMO. In this article, we analyze the effects of the phase noise and IQ imbalance in dual band MIMO-OFDM system, and propose a novel compensation scheme in order to enhance the system performance. From the simulation results, it can be seen that phase noise and IQ imbalance cause serious performance degradation of dual-band MIMO-OFDM system, and the proposed schemes has significantly improved BER performance by concurrent suppression of ICI due to phase noise and IQ imbalance.
Sponsorship	IEEE Comput. Soc.
Starting Page	320
Ending Page	324
File Size	356239
Page Count	5
File Format	PDF
ISBN	9781479936892
DOI	10.1109/ICOIN.2014.6799489
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-02-10
Publisher Place	Thailand
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Phase noise Dual band Bit error rate OFDM MIMO Degradation Long Term Evolution LTE-Advanced Carrier aggregation dual band phase noise IQ imbalance
Content Type	Text
Resource Type	Article

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