OFDM Multiple Antennas Cognitive Radio Relay CDMA Synchronization Channel Estimation Spectrum Sharing Interference Cancellation Full duplex Spectrum Sensing Resource Allocation Neural Networks Stochastic Geometry Equalizer Bi-Directional Feedback Femtocell Energy Harvesting Heterogeneous Networks Device-to-Device (D2D) Cross-link interference Cell Search SINR mismatch problem Ultra-dense small cell networks HetNet Idle cells Spectral efficiency Dynamic TDD interference management NOMA FBMC selection diversity Handoff outage probability mode selection B5G multi-spectral achievable sum rate Grant-free Transmission Filtered OFDM tabu-search bursty traffic model flexible duplex 5G Asynchronous Transmission Preamble Deep learning Shortened TTI automatic repeat request (ARQ) Two-way communications transmission capacity (TC) in-band full-duplex system self-interference cancellation Complexity Ultra-dense small cell sensing duration Correlated MIMO Cognitive relay networks Heterogeneous channel estimation capability Bi-directional full-duplex full-duplex cellular full-duplex relay Simultaneous Sensing and Transmission UWB OQAM Windowing Vehicle-to-vehicle communication prototype filter pilot signal LTE-based V2V link reliability resource size control interference to noise ratio eigen decomposition TS-W-OFDM C-V2V massive connectivity Reliability Vehicle-to-Vehicle full-spreading NOMA Resource management Cooperative systems Coexistence scenarios mixed numerology 6G Cell-free Coexisting network Multiple access Railway CP-OFDM MLP Edge computing Full-duplex Mobility non-orthogonal multiple access HST interference mitigation Computation offloading TDD configuration Singular Vale Decomposition
Status : Published 
Date : 2006-12 
Title : Channel Estimation in Comb-Type Pilot Arrangements for OFDM Systems with Null Subcarriers 
Authors : Jihyung Kim and Daesik Hong 
Journal : Communications, IEICE Transactions on 
Abstract : This letter analyzes the degradation effect of null subcarriers in orthogonal frequency domain multiplexing (OFDM) systems on the time-domain maximum likelihood (ML) estimation performance. The analysis is used as the basis for a proposal for a channel estimation method that can overcome performance degradation caused by null subcarriers. The accuracy of the proposed method is confirmed by the numerical analysis. 
URL : http://search.ieice.org/bin/summary.php?id=e89-b_12_3458 

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List of Articles
No.
Status Datesort
5 [IEICE Trans. Commun.] Jihyung Kim, Sangho Nam, Donjun Lee, Jonghan Kim, Jongdae Park, Daesik Hong, "Channel Estimation with a New Preamble Structure for a MIMO OFDM-based WLAN System", IEICE Trans. Commun., Feb. 2008 Published  2008-02 
» [IEICE Trans. Commun.] Jihyung Kim and Daesik Hong, "Channel Estimation in Comb-Type Pilot Arrangements for OFDM Systems with Null Subcarriers", IEICE Trans. Comm., Dec 2006 Published  2006-12 
3 [IEICE Trans. Commun.] Myeongyun Cho, Hangyu Cho and Daesik Hong, "A Novel 2-Dimensional Spreading Method for Down-Link OFDM Code-Division Multiplexing Systems", IEICE Trans. Comm., Jun 2006 Published  2006-06 
2 [IEICE Trans. Commun.] Younghyun Jeon, Jongkyung Kim, Hyunkyu Yu, Jonghyung Kwun, Sanghoon Lee, Jongsoo Seo, and Daesik Hong, "Known-postfix based Cell Search Technique for OFDM Cellular Systems", IEICE Trans. Comm., Apr 2006 Published  2006-04 
1 [IEICE Trans. Commun.] Intae Hwang, Jungyoung Son, Sukki Hahn, Younghwan You, Daesik Hong and Changeon Kang, "Inter-Channel Interference Analysis in STBC OFDM-CDMA Systems", IEICE Trans. Comm., May 2004 Published  2004-05