Integrated Sensing and Communication via Orthogonal Time Frequency Space Signaling with Hybrid Message Passing Detection and Fractional Parameter Estimation

Zhang，Ji1,2,3; Cai，Leqi4; Liu，Huanyou1

2023-12-01

10.3390/s23249874

Sensors   影响因子和分区

1424-8220

For the orthogonal time frequency space (OTFS) modulation, we generally multiplex symbols on a new type of carrier waveform in the delay-Doppler (DD) domain. These two parameters can be used to infer the range (R) and velocity (V) of the communication user and sensing target; thus, it is natural for the OTFS to be implemented in integrated sensing and communication (ISAC). A framework for ISAC based on OTFS modulation is proposed in this paper, in which the matched filter scheme with fractional parameter estimation is implemented for radar sensing. In addition, the hybrid message passing (MP) detection algorithm is developed for OTFS symbol demodulation. According to the simulation results, fractional DD shifts associated with multiple targets can be accurately obtained through the proposed framework. Meanwhile, the bit error rate under the proposed detector is less than (Formula presented.) when the signal-to-noise ratio is high enough.

delay-Doppler (DD) domain fractional parameter estimation hybrid message passing OTFS radar sensing

EI ; SCI

英语

其他

20240115305793

Bit error rate ; Frequency estimation ; Matched filters ; Signal to noise ratio ; Space-based radar

Electric Filters:703.2 ; Information Theory and Signal Processing:716.1 ; Radar Systems and Equipment:716.2 ; Computer Programming:723.1 ; Data Processing and Image Processing:723.2

CHEMISTRY

2-s2.0-85180715382

Scopus

1.China Airborne Missile Academy,Luoyang,471009,China
2.Intelligent System Science and Technology Innovation Center,Longmen Laboratory,Luoyang,471009,China
3.School of Mathematics and Statistics,Henan University of Science and Technology,Luoyang,471023,China
4.Department of Electronics and Electrical Engineering,Southern University of Science and Technology,Shenzhen,518055,China

Zhang，Ji,Cai，Leqi,Liu，Huanyou. Integrated Sensing and Communication via Orthogonal Time Frequency Space Signaling with Hybrid Message Passing Detection and Fractional Parameter Estimation[J]. Sensors,2023,23(24).

Zhang，Ji,Cai，Leqi,&Liu，Huanyou.(2023).Integrated Sensing and Communication via Orthogonal Time Frequency Space Signaling with Hybrid Message Passing Detection and Fractional Parameter Estimation.Sensors,23(24).

Zhang，Ji,et al."Integrated Sensing and Communication via Orthogonal Time Frequency Space Signaling with Hybrid Message Passing Detection and Fractional Parameter Estimation".Sensors 23.24(2023).