High-throughput interleaving scheme in free space optical communication system

Interleaving scheme has found its applications in free space optical (FSO) communication system to cope with successive burst errors caused by atmospheric turbulence. However, the high data transfer rate of FSO communication requires high throughput interleaving, which poses unique challenges for the existing interleaver. In this paper, we present a novel interleaving scheme by using combinations of byte-wise interleaver and serializer/deserializer (SerDes) structure. A straightforward model is established to derive tight approximate expressions of post forward error correction (FEC) bit error rate (BER) over the atmospheric turbulence channel. Simulation results show that the proposed scheme has advantage of better BER performance in coping with successive burst errors over the existing interleaving schemes, and it also has a relatively high throughput capacity which is applicable to the FSO communication system.

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