TY - JOUR
T1 - A derivation on the equivalence between Newton's method and DF DFT-based method for channel estimation in OFDM systems
AU - Ku, Meng Lin
AU - Huang, Chia Chi
N1 - Funding Information:
Manuscript received June 1, 2007; revised June 3, 2008; accepted July 16, 2008. The associate editor coordinating the review of this paper and approving it for publication was X.-G. Xia. This work is supported in part by National Science Council under Grants NSC94-2220-E-009-033, NSC95-2220-E-009-010 and NSC96-2220-E-009-002. The authors are with the Department of Communication Engineering, National Chiao Tung University, Hsinchu, 300, Taiwan (e-mail: [email protected], [email protected]). Digital Object Identifier 10.1109/T-WC.2008.070583
PY - 2008/10
Y1 - 2008/10
N2 - In this paper, we derive the decision-feedback (DF) discrete Fourier transform (DFT)-based channel estimation method from Newton's method for space-time block code (STBC)/ orthogonal frequency division multiplexing (OFDM) systems. Through our derivation, the equivalence between Newton's method and the DF DFT-based method is established. Computer simulations are also used to demonstrate the equivalence of the two methods in terms of BER and normalized square error (NSE) performance. Finally, the results presented in this paper also hold for conventional OFDM systems.
AB - In this paper, we derive the decision-feedback (DF) discrete Fourier transform (DFT)-based channel estimation method from Newton's method for space-time block code (STBC)/ orthogonal frequency division multiplexing (OFDM) systems. Through our derivation, the equivalence between Newton's method and the DF DFT-based method is established. Computer simulations are also used to demonstrate the equivalence of the two methods in terms of BER and normalized square error (NSE) performance. Finally, the results presented in this paper also hold for conventional OFDM systems.
KW - Channel estimation
KW - Decision-feedback
KW - Discrete fourier transform
KW - Newton's method
KW - Orthogonal frequency division multiplexing
KW - Space-time block code
UR - http://www.scopus.com/inward/record.url?scp=55149117345&partnerID=8YFLogxK
U2 - 10.1109/T-WC.2008.070583
DO - 10.1109/T-WC.2008.070583
M3 - 期刊論文
AN - SCOPUS:55149117345
SN - 1536-1276
VL - 7
SP - 3982
EP - 3987
JO - IEEE Transactions on Wireless Communications
JF - IEEE Transactions on Wireless Communications
IS - 10
M1 - 4657342
ER -