Indoor RF signal distribution using a coherence multiplexed/subcarrier multiplexed optical transmission system
نویسندگان
چکیده
Abstract— A Radio over Fiber (RoF) distribution network based on single-mode fiber (SMF) and a combination of coherence multiplexing (CM) and subcarrier multiplexing (SCM) is proposed. CM is a relatively unknown and potentially inexpensive form of photonic code-division multiplexing, and is used here as a means to distinguish between the radio access points (RAPs). Two alternative CM network topologies are considered: one for downlink and one for uplink. SCM is used on top of CM in order to serve multiple users through the same RAP simultaneously. The performance of the system is analyzed, incorporating the effect of chromatic fiber dispersion, optical beat interference noise between the CM channels, shot noise, thermal noise and intermodulation distortion (IMD) between the SCM channels.
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