TY - GEN
T1 - An improved ROMP sparse channel estimation algorithm in OFDM system
AU - Mei, Lidan
AU - Gao, Fei
AU - Pan, Hongyun
AU - Xue, Yanming
N1 - Publisher Copyright:
© 2015 IEEE.
PY - 2015/11/25
Y1 - 2015/11/25
N2 - In order to improve the accuracy of channel estimation in OFDM system, an improved algorithm Regularized Orthogonal Matching Pursuit (ROMP) Algorithm is proposed. The algorithm avoids choosing the wrong group and makes the group of atoms'energy more concentrated which is selected by modified regularized principle, then adds the secondary screening of estimation results, achieves an accurate reconstruction of original signal. Simulation results show that, in OFDM system, compared with ROMP and Orthogonal Matching Pursuit (OMP) algorithms, the proposed algorithm can get better performance in Mean Squared Error (MSE) and Symbol Error Rate (SER), improve the accuracy of sparse channel estimation.
AB - In order to improve the accuracy of channel estimation in OFDM system, an improved algorithm Regularized Orthogonal Matching Pursuit (ROMP) Algorithm is proposed. The algorithm avoids choosing the wrong group and makes the group of atoms'energy more concentrated which is selected by modified regularized principle, then adds the secondary screening of estimation results, achieves an accurate reconstruction of original signal. Simulation results show that, in OFDM system, compared with ROMP and Orthogonal Matching Pursuit (OMP) algorithms, the proposed algorithm can get better performance in Mean Squared Error (MSE) and Symbol Error Rate (SER), improve the accuracy of sparse channel estimation.
KW - Compressive sensing
KW - OFDM
KW - ROMP algorithm
KW - Sparse channel estimation
UR - http://www.scopus.com/inward/record.url?scp=84960977271&partnerID=8YFLogxK
U2 - 10.1109/ICSPCC.2015.7338796
DO - 10.1109/ICSPCC.2015.7338796
M3 - Conference contribution
AN - SCOPUS:84960977271
T3 - 2015 IEEE International Conference on Signal Processing, Communications and Computing, ICSPCC 2015
BT - 2015 IEEE International Conference on Signal Processing, Communications and Computing, ICSPCC 2015
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 5th IEEE International Conference on Signal Processing, Communications and Computing, ICSPCC 2015
Y2 - 19 September 2015 through 22 September 2015
ER -