Title :
Cascaded external optical modulation link for radio distribution
Author :
Ogawa, H. ; Horikawa, K. ; Nakasuka, Y.
Author_Institution :
NTT Radio Commun. Syst. Labs., Yokosuka, Japan
Abstract :
This paper proposes a fiber optic link configuration for radio distribution networks using cascaded radio base stations. The fiber optic link consists of cascaded external optical modulates (EOMs) that are intensity modulated by radio frequencies from user terminals. The EOMs are connected through fiber cables in series. The link is experimentally investigated at microwave frequencies. The 1.7-GHz QPSK MODEM is connected to the fiber optic link and the transmission characteristics are evaluated using interference signals.<>
Keywords :
microwave links; mobile radio systems; optical links; optical modulation; radio networks; radio stations; telecommunication networks; QPSK MODEM; cascaded radio base stations; external optical modulation; fiber optic link; interference signals; microwave frequencies; radio distribution networks; transmission characteristics; user terminals; Base stations; Frequency modulation; Intensity modulation; Microwave frequencies; Modems; Optical fiber cables; Optical fibers; Optical modulation; Quadrature phase shift keying; Radio frequency;
Conference_Titel :
Microwave Symposium Digest, 1994., IEEE MTT-S International
Conference_Location :
San Diego, CA, USA
Print_ISBN :
0-7803-1778-5
DOI :
10.1109/MWSYM.1994.335440
