| Summary |
Image sensor communication (ISC) using a Propeller LED transmitter (P-Tx) is a technology that achieves high-capacity transmission by utilizing light trails. However, conventional performance evaluation based on the Monte Carlo method is computationally intensive, especially for low Bit Error Rate (BER) regions, and offers limited intuitive insight into how system parameters affect performance. To address these challenges, this paper proposes a hybrid analytical method. This approach combines a deterministic physical simulation to model Inter-Symbol Interference (ISI) with a theoretical analysis using the Q-function for probabilistic noise effects. Our model is based on the key finding that system performance is dominated by ISI from the two immediately adjacent light trails. The BER characteristics derived from our method show good agreement with results from the Monte Carlo simulation, validating our approach. This technique significantly reduces computational load and clarifies the relationship between design parameters and BER, enabling efficient system optimization. |
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