Pilot Design and Channel Estimation for TDS-OFDM System with Transmit Diversity

Linglong DAI  Jintao WANG  Zhaocheng WANG  Jun WANG 

Publication
IEICE TRANSACTIONS on Communications  Vol.E94-B  No.3  pp.852-855
Publication Date: 2011/03/01
Online ISSN: 1745-1345
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Wireless Communication Technologies
Keyword: 
TDS-OFDM,  transmit diversity,  training sequence,  channel estimation, 

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Summary: 
To realize transmit diversity for the time domain synchronous OFDM (TDS-OFDM) system, this letter proposes the space-time-frequency orthogonal training sequence and the corresponding flexible channel estimation methods. Simulation results indicate that an significant performance improvement could be achieved for low-density parity-check code (LDPC) coded TDS-OFDM system over multi-path fading channels.