Enhancement of channel capacity in optical wireless communication through multiplexing schemes [Review]

Subject of study. A review of circuit design solutions for multiplexers used in wireless optical communication systems to increase the communication channel capacity is presented. Aim of study. The relationships between the parameters of a wireless optical communication system and the circuit solutions of a multiplexer subsystem that are optimal in terms of increasing the communication channel capacity and efficient use of the channel bandwidth are determined. Method . The increase in the capacity of a wireless optical communication system is achieved by adding a multiplexing subsystem to its structure. Optimal multiplexing schemes are determined as a result of an analytical review of various wireless optical communication systems by comparing their parameters and characteristics given in literary sources. Main results. Based on an analytical review of literary sources, which present the results of computer and physical modeling of wireless optical communication systems, multiplexing schemes have been identified, the use of which allows the throughput of an optical communication channel to be increased. Practical significance. The results of the conducted review allow, when designing a wireless optical communication line, the optimal multiplexing scheme for a given application to be selected and, accordingly, the transmission capacity to be increased and the channel bandwidth to be effectively used, satisfying the ever-growing demands of applications that require large volumes of transmitted data.