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The proposed network is based on a passive double-star architecture. The relaxed dynamic range requirements of CDMA signals allowed the use of double-star architecture. ... We propose and demonstrate a fiber-optic network for microcellular code-division multiple access (CDMA) personal communication service. ... In this letter, we propose and demonstrate a fiber-optic network based on a passive double star for CDMA PCS. ...doi:10.1109/68.726776 fatcat:yxdnefdqafannkijjoc5zuh2lq
Motivated by this relaxed requirement, we have recently proposed a passive optical network for CDMA-based microcellular communication systems. ... In this paper, we reviewed the basic design rules and demonstrated various networks using double-star and ring architectures. ... ACKNOWLEDGMENT The authors would like to thank J. M. Cheong of SK Telecom for measuring the dynamic range of upstream CDMA signals at commercial PCS base stations. ...doi:10.1109/50.918881 fatcat:2qxhxitwjzdwxemyo7delrxunq
Microcellular and distributed antenna systems are two promising candidates for implementing personal communication systems. ... The significant reduction in conduit and cable lengths that the Steiner minimal tree (SMT) architecture provides over the star type, especially in large networks, is demonstrated. ... This network may correspond to a fiber optic microcellular system utilizing SCM, or to an SDA system with one antenna element per sector. ...doi:10.1109/49.622915 fatcat:puodlrsgdracrjqzf2imfz5uke
Opto-Canada: SPIE Regional Meeting on Optoelectronics, Photonics, and Imaging
In reality, the individual fibers may be interconnected as a bus network, or as a star network or an hybrid of these two schemes. ... In the resistive matching technique, a passive matching network consisting of only resistive elements is used. ... When the nonlinearity has no memory, these distortions produces a 'warped' con- A.2 Inband Nonlinear System ...doi:10.1117/12.2283858 fatcat:yydww3ni2jchtjnxruaznhtr5m
order to meet backward compatibility requirements with existing systems and to achieve best compromise among a range of conflicting system requirements in terms of communications quality, bandwidth requirements ... Following a brief introduction to speech, video, and graphical source coding as well as the cellular concept, a rudimentary overview of flexible, reconfigurable, mobile radio schemes is provided. ... The multimedia PS's communicate with the so-called BS's in their vicinity, which are interconnected either directly using optical fiber or in more complex systems via MSC's. ...doi:10.1109/5.681368 fatcat:5ycvcgjfk5bjbfblcqckuva37e