Abstract
Orthogonal signal-division multiplexing (OSDM) is a newly emerged modulation scheme which provides a generalized framework unifying conventional orthogonal frequency-division multiplexing (OFDM) and single-carrier frequency domain equalization. In this letter, a space-frequency block coding (SFBC) scheme based on OSDM is proposed for time-varying underwater acoustic channels. The receiver processing includes Doppler compensation, channel estimation, space-frequency decoding, and equalization. Simulation and experimental results demonstrate its superiority over the existing SFBC-OFDM counterpart.
| Original language | English |
|---|---|
| Pages (from-to) | EL513-EL518 |
| Number of pages | 6 |
| Journal | Journal of the Acoustical Society of America |
| Volume | 141 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 2017 |
Keywords
- Doppler effect
- Surface enhanced Raman scattering
- Density functional theory
- Multiplexing
- Underwater sound