{"title":"Maximal ratio combining macro diversity for micro-cellular slotted ALOHA","authors":"M. Toyama, M. Okada, S. Komaki","doi":"10.1109/MWP.1996.662072","DOIUrl":"https://doi.org/10.1109/MWP.1996.662072","url":null,"abstract":"This paper proposes a new slotted-ALOHA packet radio system with macro-diversity reception for microcellular mobile communication systems. The proposed system uses a modified maximal ratio combining strategy, which chooses the N strongest packet signals and adds them with maximal ratio combining.","PeriodicalId":433743,"journal":{"name":"International Topical Meeting on Microwave Photonics. MWP '96 Technical Digest. Satellite Workshop (Cat. No.96TH8153)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130384166","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Proposal of Radio Highway Networks using chirp multiplexing transform","authors":"Y. Shoji, K. Tsukamoto, M. Okada, S. Komaki","doi":"10.1109/MWP.1996.662061","DOIUrl":"https://doi.org/10.1109/MWP.1996.662061","url":null,"abstract":"This paper proposes a Radio Highway Network using chirp multiplexing transform, where multicarrier radio multi-services are converted into a TDM signal format, and are asynchronously fed into a optical bus link. Cell loss probability and received CNR are theoretically analyzed.","PeriodicalId":433743,"journal":{"name":"International Topical Meeting on Microwave Photonics. MWP '96 Technical Digest. Satellite Workshop (Cat. No.96TH8153)","volume":"228 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128011753","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Proposal of radio highway network using a novel direct optical switched CDMA method","authors":"S. Park, K. Tsukamoto, S. Komaki","doi":"10.1109/MWP.1996.662071","DOIUrl":"https://doi.org/10.1109/MWP.1996.662071","url":null,"abstract":"In this proposed network, bipolar codes such as maximal length codes and Gold codes can be applied by using a correlator consisting of a polarity-reversing-divider and a balanced mixing photodetector (BMPD).","PeriodicalId":433743,"journal":{"name":"International Topical Meeting on Microwave Photonics. MWP '96 Technical Digest. Satellite Workshop (Cat. No.96TH8153)","volume":"112 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129739498","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Multichannel coherent SCM optical transmission system using radio-to-optic direct conversion scheme","authors":"Y. Suda, I. Tsukamoto, S. Komaki","doi":"10.1109/MWP.1996.662062","DOIUrl":"https://doi.org/10.1109/MWP.1996.662062","url":null,"abstract":"This paper newly proposes SCM coherent optical transmission system using a radio-to-optic direct conversion scheme, where the SCM RF signal can be converted into an optical frequency division multiplexing (OFDM) signals with the same frequency interval as SCM radio signal with the same signaling and multiplexing format. The theoretical received CNR analysis shows and as a result, it is clarified that the received CNR of the proposed system is better than that of the conventional coherent and IM/DD system.","PeriodicalId":433743,"journal":{"name":"International Topical Meeting on Microwave Photonics. MWP '96 Technical Digest. Satellite Workshop (Cat. No.96TH8153)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127552986","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Optical intensity modulator using inverted slot line at 60 GHz","authors":"T. Yoneyama, D. Dawn, T. Hanasaka","doi":"10.1109/MWP.1996.662158","DOIUrl":"https://doi.org/10.1109/MWP.1996.662158","url":null,"abstract":"The inverted slot line (ISL) structure which has been proposed for millimeter wave LiNbO/sub 3/ optical modulator is found to be very simple in structure, and also is capable of achieving perfect velocity matching between carrier and modulating waves. This paper describes the development of a Mach-Zehnder Ti-diffused LiNbO/sub 3/ optical intensity modulator using the ISL at 60 GHz. To launch millimeter waves into the ISL structure two types of transitions have been developed successfully. In one type, a balun which is made from semirigid coaxial cable is used to feed millimeter waves into the ISL. In another type, nonradiative dielectric (NRD) waveguide, which can provide the total integration of the modulator with millimeter wave integrated circuits, is used to excite the ISL structure ensuring minimum transition losses. Optical response of 0.17 W/sup -1/ could be obtained at 60 GHz using a Mach-Zehnder interferometer with a rather poor extinction ratio of 5 dB at an optical wavelength of 0.633 /spl mu/m.","PeriodicalId":433743,"journal":{"name":"International Topical Meeting on Microwave Photonics. MWP '96 Technical Digest. Satellite Workshop (Cat. No.96TH8153)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116166913","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Y. Chang, H. Fetterman, D. Cohen, A. Levi, I. Newberg
{"title":"Optically-controlled serially-fed phased array transmitter","authors":"Y. Chang, H. Fetterman, D. Cohen, A. Levi, I. Newberg","doi":"10.1109/MWP.1996.662127","DOIUrl":"https://doi.org/10.1109/MWP.1996.662127","url":null,"abstract":"We propose and demonstrate a new optically controlled phased array system which has all the advantages of true time delay yet only requires one tunable laser, one optical modulator and one fiber optic grating unit.","PeriodicalId":433743,"journal":{"name":"International Topical Meeting on Microwave Photonics. MWP '96 Technical Digest. Satellite Workshop (Cat. No.96TH8153)","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133075284","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}