Summary
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An Experimental Investigation of Interference Suppression in Direct Optical Switching CDM Radio-on-Fiber System Takeshi HIGASHINO Katsutoshi TSUKAMOTO Shozo KOMAKI Publication IEICE TRANSACTIONS on Electronics Vol.E86-C No.7 pp.1159-1166 Publication Date: 2003/07/01 Online ISSN: DOI: Print ISSN: 0916-8516 Type of Manuscript: Special Section PAPER (Special Issue on Recent Progress in Microwave and Millimeter-wave Photonics Technologies) Category: Photonic Links for Wireless Communications Keyword: microwave photonics, radio on fiber (ROF), CDM, interference suppression, optical polarity reversing correlator, Full Text: PDF>>
Summary: This paper describes the experimental approach of the Direct Optical Switching (DOS) CDM Radio-on-Fiber (RoF) system. Improved carrier-to-interference ratio (CIR) performance by using an Optical Polarity Reversing Correlator (OPRC) in comparison to using a single switch decoder is experimentally obtained. In addition, CIR performance deterioration due to degradation of the extinction ratio of the optical switch decoder is clarified from the theoretical and experimental viewpoints. Finally, we confirmed that CIR performance is improved more by using an M-sequence whose weight is even numbered than by using an odd numbered one. | |||||
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