Proposal of Chirp Multiplexing Transform/Intensity Modulation/Direct Detection System for Radio Highway Networks(Special Section on Fundamentals of Multi-dimensional Mobile Information Network)

概要

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This paper newly proposes the CMT/IM/DD system for universal radio access networks where radio base stations(RBSs) and an optic backbone network are universally available among different radio services and providers. In the proposed system, the Chirp Fourier transformer at an RBS, converts the received FDM multiple radio service signals into optical TDM format signals, then transfers them over the optic fiber-link. This paper is focused on the discussion about the performance on the up-link of the CMT/IM/DD system. A new type of the configuration of CMT and the direct demodulation for the CMT signal are also proposed, and the SNR considering inter-symbol and inter-channel interferences caused by the CMT is theoretically analyzed. Analysis results show that the overall SNR performance of the CMT system is superior to the conventional SCM system when the number of radio channels is more than 26.
社団法人電子情報通信学会の論文
1998-07-25