Asymmetric free space optical wireless sensor networks (FSO-WSNs) have gained momentous attention lately due to the promise of minimal energy consumption at the distributed sensors along with eminent performance. Asymmetric FSO is accomplished using corner cube retroreflector (CCR) that is mounted on each sensor node. The CCR either reflects or absorbs the received laser beam from the fusion center to indicate its local decision regarding the monitored target. In this study, a bistatic channel is assumed where the transmitter and the receiver are located at different locations such that the double pass channel is modeled as a product of two independent turbulence channels. Novel performance analysis of the CCR-based FSO-WSN system in terms of the average bit error rate (BER) and the average decision error rate (DER) is presented. In particular, closed-form expressions for the BER and the DER are derived using the Fox H-function under different bistatic turbulent channel models including negative exponential, K-turbulence, Gamma-Gamma, and Malaga channel models.Monte Carlo simulation results are obtained to corroborate the accuracy of the derived analytical formulas where an exact match is reported over wide range of system and channel parameters. In addition, the influence of transmit power, distance, detection threshold, and turbulence parameters on the performance of the system is investigated and thoroughly discoursed.Trans Emerging Tel Tech. 2019;30:e3707.wileyonlinelibrary.com/journal/ett considered as the most energy efficient since CCRs are very compact and operate at extremely low power consumption in the order of 0.1 nJ/bit. 11 The basic principle of CCR-based FSO-WSN implies that the fusion center (FC) emits a continuous laser beam toward each node in the WSNs to collect its binary decision. If the decision is 1, the CCR reflects the laser beam back to the FC. Alternatively, if the decision is 0, the CCR will not be activated and no signal will be reflected to the FC. Thus, the decision of the corresponding node is detected based on the intensity of the reflected beam. It is discernible that the energy consumption at the distributed nodes is at its minimum value. In literature, extensive research works have focused on fabricating the CCR and other modulating retroreflector (MRR) devices. 12,13 The establishment of the experimental CCR FSO systems is performed in other works, 14-17 which adequately demonstrates the feasibility of the CCR FSO technology. The signal to-noise ratio (SNR) of a transceiver and a single CCR in a WSN based on a passive MRR is analyzed in the work of Hsu et al. 11 Noonpakdee et al 14 propose an optical wireless identification scheme employing a thin film CCR (TCCR). The system was found to have potential advantages over hybrid RFID systems. In the work of Noonpakdee, 15 an indoor optical wireless communication system using CCR was proposed for health monitoring applications. Noonpakdee 16 proposed a passive-active optical wireless transmission for personal health monitoring sys...

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