TY - GEN
T1 - Iterative Hard Thresholding Using Least Squares Initialization
AU - Tausiesakul, Bamrung
N1 - Publisher Copyright:
© 2022 IEEE.
PY - 2022
Y1 - 2022
N2 - An improvement of the typical iterative hard thresholding (IHT) algorithm is presented by means of least squares initialization. Unlike the initialization that assigns all zeros to the initial estimate, the linearized least squares estimate is instead adopted herein. Numerical examples are conducted under a sparse signal recovery problem. Performance of the proposed approach in terms of root-mean-square relative error (RMSRE), computational time, and memory consumption is compared to the typical IHT algorithm. It is shown in numerical example that a good initialization can deliver lower RMSRE, less computational time, and less memory requirement.
AB - An improvement of the typical iterative hard thresholding (IHT) algorithm is presented by means of least squares initialization. Unlike the initialization that assigns all zeros to the initial estimate, the linearized least squares estimate is instead adopted herein. Numerical examples are conducted under a sparse signal recovery problem. Performance of the proposed approach in terms of root-mean-square relative error (RMSRE), computational time, and memory consumption is compared to the typical IHT algorithm. It is shown in numerical example that a good initialization can deliver lower RMSRE, less computational time, and less memory requirement.
KW - Iterative hard thresholding
KW - compressive sensing
KW - linear least squares
UR - https://www.scopus.com/pages/publications/85133121686
U2 - 10.1109/CSNT54456.2022.9787592
DO - 10.1109/CSNT54456.2022.9787592
M3 - Conference contribution
AN - SCOPUS:85133121686
T3 - Proceedings - 2022 IEEE 11th International Conference on Communication Systems and Network Technologies, CSNT 2022
SP - 612
EP - 615
BT - Proceedings - 2022 IEEE 11th International Conference on Communication Systems and Network Technologies, CSNT 2022
A2 - Tomar, G.S.
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 11th IEEE International Conference on Communication Systems and Network Technologies, CSNT 2022
Y2 - 23 April 2022 through 24 April 2022
ER -