Delay-symbol OOK signaling for OFDM-based ambient backscatter communication
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- ISTANBUL MEDIPOL UNIVERSITESI TEKNOLOJI TRANSFER OFISI ANONIM SIRKETI
- Filing Date
- 2025-05-16
- Publication Date
- 2026-06-18
AI Technical Summary
Existing ambient backscatter communication technologies face inefficiencies in detecting weak signals due to direct-link interference and multipath components, leading to increased complexity, power consumption, and non-compliance with existing communication standards.
A novel delay-based modulation mechanism using Delay Shift Keying (DSK) for backscatter devices, introducing controlled delays beyond the cyclic prefix (CP) to leverage inter-symbol interference (ISI) for detection, enabling compatibility with conventional OFDM receivers and reducing complexity.
The solution allows for efficient, standard-compliant detection of backscatter signals without channel estimation, minimizing interference and power consumption, while maintaining spectral efficiency and scalability.
Smart Images
Figure TR2025050517_18062026_PF_FP_ABST