Simplified calculation method of indoor optical impulse response based on recursive algorithm

A simplified method for the calculation of indoor wireless optical impulse response based on classical recursive algorithm is demonstrated. In the proposed algorithm, the optical characteristics of emitting and receiving elements have been used to reduce the complexity of computations while no sacrifice of accuracy is introduced. Theoretical investigation shows that the elementary computations for the third reflection decreases by nearly 50% in comparison with the one that utilizes the classical recursive algorithm, and can obtain a higher reduction percentage when more reflections are to be concerned.