Channel estimation and symbol detection for OFDM systems using data-nulling superimposed pilots

A novel data-nulling superimposed pilot scheme for orthogonal frequency division multiplexing (OFDM) systems is proposed, where the input data vector is spread over all the subcarriers by a precoding matrix and then nulled at certain subcarriers for the insertion of training pilots. This method avoi...

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Veröffentlicht in:	Electronics letters 2014-01, Vol.50 (3), p.179-180
Hauptverfasser:	Dou, Gaoqi, He, Chunquan, Li, Congying, Gao, Jun
Format:	Artikel
Sprache:	eng
Schlagworte:	Access methods and protocols, osi model Applied sciences channel coding channel estimation Channels Coding, codes data‐nulling superimposed pilot scheme Distortion Exact sciences and technology FDM pilot frequency‐division multiplexed pilot Information and communications Information, signal and communications theory input data distortion mitigation input data vector iterative decoding Mathematical analysis matrix algebra Multiplexing Nulling OFDM modulation OFDM system Orthogonal Frequency Division Multiplexing Pilots precoding precoding matrix Radiocommunications Signal and communications theory simple iterative reconstruction scheme Subcarriers symbol detection Telecommunications Telecommunications and information theory Teleprocessing networks. Isdn training pilot insertion vectors
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