TY - GEN
T1 - Pilot Allocation for Iteration Reduction of Channel Estimation Using MF-Based Interpolation
AU - Suga, Norisato
AU - Sasaki, Ryohei
AU - Furukawa, Toshihiro
N1 - Publisher Copyright:
© 2019 IEEE.
PY - 2019/12
Y1 - 2019/12
N2 - This paper studies an iteration reduction of channel estimation method using matrix factorization (MF) based interpolation. It is important to set the initial value close to the optimal solution to reduce the iteration. To obtain an appropriate initial value, exploiting the existing methods with low computational complexity such as linear interpolation is reasonable. While MF-based interpolation can achieve high accuracy when randomly determined pilot symbol allocation, it is not suitable for the existing method. This paper proposes a pilot allocation where fixed position and the randomly determined position are mixed to perform both the linear interpolation and MF-based interpolation. Computational simulation result shows the iteration reduction by the proposed pilot symbol allocation.
AB - This paper studies an iteration reduction of channel estimation method using matrix factorization (MF) based interpolation. It is important to set the initial value close to the optimal solution to reduce the iteration. To obtain an appropriate initial value, exploiting the existing methods with low computational complexity such as linear interpolation is reasonable. While MF-based interpolation can achieve high accuracy when randomly determined pilot symbol allocation, it is not suitable for the existing method. This paper proposes a pilot allocation where fixed position and the randomly determined position are mixed to perform both the linear interpolation and MF-based interpolation. Computational simulation result shows the iteration reduction by the proposed pilot symbol allocation.
KW - OFDM
KW - channel estimation
KW - interpolation
KW - iteration reduction
KW - matrix factorization
UR - http://www.scopus.com/inward/record.url?scp=85081084693&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85081084693&partnerID=8YFLogxK
U2 - 10.1109/ISPACS48206.2019.8986273
DO - 10.1109/ISPACS48206.2019.8986273
M3 - Conference contribution
AN - SCOPUS:85081084693
T3 - Proceedings - 2019 International Symposium on Intelligent Signal Processing and Communication Systems, ISPACS 2019
BT - Proceedings - 2019 International Symposium on Intelligent Signal Processing and Communication Systems, ISPACS 2019
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2019 International Symposium on Intelligent Signal Processing and Communication Systems, ISPACS 2019
Y2 - 3 December 2019 through 6 December 2019
ER -