摘要
A full-duplex radio-over-fiber system using frequency-twelvefold optical millimeter-wave based on external modulation via a Mach-Zehnder modulator is proposed and analyzed theoretically.The simulation results show that the power penalties for both the downstream and upstream signals are iess than 0.5 dB.In this scheme,the configuration of a base station is simplified without laser,while the frequency of local oscillator signal is largely reduced due to the frequency-twelvefold millimeter-wave technique.The cost of the new system is largely reduced.
基金
Supported by the National Natural Science Foundation of China under Grant No 61077038.
