.png){kind=icon}
.png){kind=icon}
Return
Dual-DD-Domain Superimposed Pilot Design for Low-PAPR Channel Estimation in OTFS Systems
.png){kind=icon}
PRE
AI
S
G
DOI：10.1109/lcomm.2026.3716746.png)
.png){kind=icon}
Original request for help.png){kind=icon}
Share.png){kind=icon}
Save
Abstract
En 中文
This letter proposes a dual-delay-Doppler-domain superimposed pilot scheme for OTFS systems. Data symbols are placed and detected in a data DD domain, while pilots are designed and estimated in a pilot DD domain. The two DD domains represent the same OTFS frame with different parameterizations and are connected by a transformation matrix. A cross-domain iterative receiver is developed for pilot-domain channel estimation and data-domain detection. Simulations show that the proposed scheme achieves almost the same PAPR as pilot-free OTFS and about four times lower NMSE at 20 dB.
Keywords:
OTFS
channel estimation
superimposed pilots
dual DD domain
parameter transformation
low PAPR
Journal
IF:
4.4
Papers:
1.2W
Citations:
2.2W
Organization
Cited Papers