Title :
Design of a Novel Multifunctional 60-GHz-Band Radio-over-System
Author :
Lv, Min ; Wang, Wenzhong ; Yang, Aiying ; Sun, Yu-nan
Author_Institution :
Coll. of Sci., Minzu Univ. of China, Beijing, China
Abstract :
A novel multifunctional 60-GHz-band radio-over-fiber (RoF) system based on a Dual-Parallel Mach-Zehnder Modulator (DPMZM) is theoretically investigated and simulated. In this scheme, downlink signals of the 60GHz optical-wireless signal generated by means of subcarrier-multiplexing (SCM) technique to carry 2.5Gb/s differential phase-shift-keying (DPSK) by the 30GHz local oscillator in central station (CS) and 10GHz wireline baseband signal are simultaneously transmitted; the 60GHz remote local oscillator (LO) signal for down-conversion of uplink radio frequency (RF) signal is generated; and the uplink data of 1.25Gb/s baseband signal transmission is realized by remodulation of downlink DPSK signal without the need of additional light source is realized. Thus the configuration of base station(BS) in full-duplex RoF systems is simplified and the cost is saved. The simulation system is set up to testify the transmission performance of these signals. The signals with multiple services are successfully transmitted over 30km single-mode fiber.
Keywords :
Mach-Zehnder interferometers; differential phase shift keying; optical modulation; radio-over-fibre; subcarrier multiplexing; base station; baseband signal transmission; bit rate 1.25 Gbit/s; bit rate 2.5 Gbit/s; central station; differential phase-shift-keying; distance 30 km; downlink DPSK signal remodulation; dual-parallel Mach-Zehnder Modulator; frequency 10 GHz; frequency 30 GHz; frequency 60 GHz; full-duplex RoF systems; light source; multifunctional radio-over-fiber system; optical-wireless signal; remote local oscillator; single-mode fiber; subcarrier-multiplexing technique; uplink radio frequency signal down-conversion; Baseband; Fiber nonlinear optics; Optical fibers; Optical modulation; RF signals;
Conference_Titel :
Photonics and Optoelectronics (SOPO), 2012 Symposium on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4577-0909-8
DOI :
10.1109/SOPO.2012.6270958
