研究目的
To derive and evaluate the bit error probability theoretically in consideration of synchronization performance of the proposed framed-DOOK system on optical-wireless channel.
研究成果
The proposed framed-DOOK system improves BER performance with an increasing number of bits per frame and is effective for optical-wireless OOK, with a minimal differential power from the lower bound when BER achieves 10^-6.
研究不足
The study is theoretical and assumes specific conditions like the use of APD and optical-wireless channel characteristics. Practical implementation may face challenges not considered in the theoretical model.
1：Experimental Design and Method Selection:
The study focuses on the differential on-off keying (DOOK) system, specifically the framed-DOOK system with 2-bit synchronization signal, to solve synchronization slip problems. Theoretical formulas for bit error probability considering synchronization performance are derived.
2：Sample Selection and Data Sources:
The analysis is based on optical-wireless channel models with background noise and scintillation.
3：List of Experimental Equipment and Materials:
The study assumes the use of an avalanche photo-diode (APD) as a photodetector, with specific parameters like quantum efficiency, APD gain, and modulation extinction ratio.
4：Experimental Procedures and Operational Workflow:
The synchronization system consists of search and verification modes to acquire and test block timing. Theoretical analysis includes deriving synchronization signal acquisition time and BER considering synchronization performance.
5：Data Analysis Methods:
The performance is evaluated based on synchronization signal acquisition time and BER under various conditions, including different numbers of bits per frame and background noise levels.
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