Proposal of Fiber-Optic Radio Highway Networks Using CDMA Method

Satoshi KAJIMA  Katsutoshi TSUKAMOTO  Shozo KOMAKI  

IEICE TRANSACTIONS on Electronics   Vol.E79-C   No.1   pp.111-117
Publication Date: 1996/01/25
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Issue on Optomicrowave Techniques and Their Applications)
Category: System Applications
CDMA,  radio highway,  fiber-optic bus link,  optical beat noise,  

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This paper proposes fiber-optic radio highway network using code division multiple access (CDMA) method which is universally applicable for various type of personal radio services and radio air interfaces. The proposed system can asynchronously open the radio-free space among any microcells. The outage probability and the number of connectable radio base stations are theoretically analyzed and compared with these in using conventional subcarrier multiplexing (SCM) method. Analysis results show that the reduction effect of the optical signal beat noise, due to spread spectrum of optical signal, improves the number of the active RBSs in CDMA radio highway network.