Title
Channel Estimation Scheme with Low Complexity Discrete Cosine Transformation in MIMO-OFDM System
Abstract
Channel estimation is a key baseband processing task in wireless systems. Filtering or smoothing algorithms can improve the accuracy of channel estimates and the Discrete Cosine Transformation (DCT) can be used for this purpose. By using the DCT, performance will be improved compared to the straight forward approach of per subcarrier estimation (PSE). However, the complexity of DCT is not negligible. This paper proposes a low complexity channel estimation scheme using the DCT. Simulation results show that the performance is improved by more than 1dB compared with PSE in MIMO-OFDM system.
Year
DOI
Venue
2007
10.1109/VETECS.2007.111
IEICE Transactions
Keywords
Field
DocType
mimo,discrete cosine transform,ofdm
Subcarrier,MIMO-OFDM,Baseband,Computer science,Discrete cosine transform,MIMO,Communication channel,Electronic engineering,Smoothing,Orthogonal frequency-division multiplexing
Conference
Volume
Issue
ISSN
92-B
12
1550-2252
Citations 
PageRank 
References 
1
0.37
5
Authors
3
Name
Order
Citations
PageRank
Daisuke Takeda110.37
Yasuhiko Tanabe2224.03
Kazumi Sato3212.60