Research Themes
- Compressed Sensing Based Detection of Localized Heavy Rain using Microwave Network Attenuation
- MIMO-OFDM with ESPAR antenna
- Compensation of MIMO-OFDM Radio Signal Distortion in Radio over Fiber- Distributed Antenna System using optical TDM
- A Study on Vehicle Speed Detection System using Leaky Coaxial Cable antenna
- OSTBC in Multiple Polarized MIMO-OFDM Systems
- Low Complexity Channel Estimation based on Compressive Sensing for OFDM Systems
- Modified Matching Pursuit Based Channel Estimation for ISDB-T
- Improving Detection Accuracy using Subspace Method in LCX Based Positioning System of Radio Terminals
- MIMO-OFDM with ESPAR antenna
- Compensation of MIMO-OFDM Radio Signal Distortion in Radio over Fiber- Distributed Antenna System using optical TDM
- A Study on Vehicle Speed Detection System using Leaky Coaxial Cable antenna
- OSTBC in Multiple Polarized MIMO-OFDM Systems
- Low Complexity Channel Estimation based on Compressive Sensing for OFDM Systems
- Modified Matching Pursuit Based Channel Estimation for ISDB-T
- Improving Detection Accuracy using Subspace Method in LCX Based Positioning System of Radio Terminals
- Sensing
- Particle Filter-Assisted Positioning Method for Identifying RFID-Tag Implanted in the Organism
- Joint Estimation of Position and Gain for RFID-Tag Assisted Surgery Support System
- Joint Estimation of Position and Gain for RFID-Tag Assisted Surgery Support System
- Wireless power transmission
- Wide-area wireless power supply
Research Topic： Compensation of MIMO-OFDM Radio Signal Distortion in Radio over Fiber- Distributed Antenna System using optical TD
Person in charge: Tatsuya Kidani
Research Brief
Radio on Fiber-Distributed Antenna System (RoF-DAS) with optical Time Division Multiplexing (TDM) is known to improve coverage and wireless performance. This system uses switcher to demultiplex TDM signal for Multiple Input Multiple Output (MIMO) and switches are required to synchronize completely. If synchronization mismatch happens, it cause critically signal degradation. We proposes asynchronous optical TDM. In this proposal, synchronization mismatch is compensated by estimating the amount of drifting and cancel it out at the Remote Antenna Unit (RAU). The bit error ratio (BER) performance is evaluated by using computer simulation.
PPTX
After graduation
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Lectures
Quarter IQuarter II
Quarter III
