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Updated: May 31, 2025
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Published on: September 5, 2019
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Preamble Design and Noncoherent ToA Estimation for Pulse-Based Wireless Networks-on-Chip Communications in the
Pankaj Singh1, Sung-Yoon Jung1
1Department of Electronic Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea.
Micromachines
|January 25, 2025
Summary
This study presents a new synchronization method for terahertz wireless networks-on-chips (WiNoC). It ensures reliable data transfer in chip multiprocessors by accurately estimating time-of-arrival for ultrafast communication.
Area of Science:
- Electrical Engineering
- Computer Engineering
- Wireless Communication
Background:
- Growing demand for high-speed data transfer and ultralow latency in wireless networks-on-chips (WiNoC).
- Terahertz (THz) band offers potential for tera-bit-per-second links in chip multiprocessors.
- Synchronization is critical due to ultrashort THz pulse durations (femtosecond range).
Purpose of the Study:
- Introduce a preamble-aided noncoherent synchronization scheme for time-of-arrival (ToA) estimation.
- Address synchronization challenges in pulse-based THz WiNoC communication.
- Enhance synchronization reliability for energy-efficient, high-performance WiNoCs.
Main Methods:
- Transmitting a preamble (known THz pulse sequence) at the start of each symbol.
- Utilizing an energy-detection receiver to analyze preamble energy across multiple integrators.
- Estimating ToA based on the integrator with maximum energy output.
- Designing a preamble based on maximum pulse energy constraints.
Main Results:
- Achieved synchronization probability exceeding 0.98 for distances under 10 mm at 20 dB SNR.
- Normalized mean squared error below 10-2.
- Demonstrated enhanced synchronization reliability for THz WiNoC.
Conclusions:
- The proposed scheme effectively supports reliable time-of-arrival estimation in THz WiNoC.
- This method is crucial for enabling ultrafast, energy-efficient communication in future multicore systems.
- Preamble-aided noncoherent synchronization is a viable solution for THz band communication challenges.
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