Abstract
Photonics have evolved from protracted fibers to dominant wireless system to look at the use of hybrid optical-wireless communication system into space technology. Inter-satellite optical wireless communication (IsOWC) systems, one of the important applications of optical-wireless communication, will be deployed in space in the near future. A significant improvement in BER at 5Gbps is achieved along with the maximum length of ISL link between the two satellites by incorporating OFDM scheme in IsOWC systems than that of conventional IsOWC systems [9]. The work is further extended in this paper to prolong the ISL link with acceptable BER at 10Gbps between two satellites in space by employing code division multiple access (CDMA) scheme due to its robustness against narrowband interference and an inherent low power spectral density. In this work, we have designed a model of FBG based CDMA-IsOWC system to establish a prolonged ISL link at data rate of 10Gbps with SNR of 20dB. Further, a comparison is also reported between our proposed FBG based CDMA-IsOWC system and OFDM-IsOWC system.
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