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Demonstration of polarisation independent coherent transmission by synchronous intra-bit polarisation spreading 同步位内偏振扩展的偏振无关相干传输演示
ICC 91 International Conference on Communications Conference Record Pub Date : 1991-06-23 DOI: 10.1109/ICC.1991.162386
N. Caponio, F. Delpiano, P. Gambini, M. Puleo, V. Seano, E. Vezzoni
{"title":"Demonstration of polarisation independent coherent transmission by synchronous intra-bit polarisation spreading","authors":"N. Caponio, F. Delpiano, P. Gambini, M. Puleo, V. Seano, E. Vezzoni","doi":"10.1109/ICC.1991.162386","DOIUrl":"https://doi.org/10.1109/ICC.1991.162386","url":null,"abstract":"Polarization-independent heterodyne detection of an FSK (frequency shift keying) signal has been demonstrated by the synchronous intrabit polarization spreading technique, which consists in the switching or proper modulation of the state of polarization of the laser output field inside the bit period. This approach is particularly suitable for distribution networks, as the polarization diversity function is shifted to the transmitter, thus resulting in a simpler and cheaper heterodyne receiver. A transmission experiment, making use of a 1.55 mu m DFB (distributed feedback) laser diode, directly FSK modulated at 155 Mb/s, a properly developed high-speed polarization modulator, and single filter heterodyne detection, has been successfully carried out. The penalty resulting from preliminary bit-error-rate measurements ranges from 4 to 6.5 dB, including the 3 dB intrinsic loss common to all polarization spreading techniques.<<ETX>>","PeriodicalId":210489,"journal":{"name":"ICC 91 International Conference on Communications Conference Record","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123053647","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}
引用次数: 0
Repeaterless links speed up advanced photonic technologies 无中继链路加速了先进的光子技术
ICC 91 International Conference on Communications Conference Record Pub Date : 1991-06-23 DOI: 10.1109/ICC.1991.162543
V. Lemaire, F. Ollivier
{"title":"Repeaterless links speed up advanced photonic technologies","authors":"V. Lemaire, F. Ollivier","doi":"10.1109/ICC.1991.162543","DOIUrl":"https://doi.org/10.1109/ICC.1991.162543","url":null,"abstract":"The increase of the span lengths and the possibility of upgrading the bit rates are the key requirements for undersea repeaterless systems. The authors present different techniques and components in order to increase the launched power, improve the receiver sensitivity, and reduce the chirp effect. A new undersea repeaterless system at 2.5 Gb/s over distances up to 250 km could be achieved in the next five years.<<ETX>>","PeriodicalId":210489,"journal":{"name":"ICC 91 International Conference on Communications Conference Record","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116879392","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}
引用次数: 0
HDTV high-speed videotex prototype system 高清电视高速可视电话原型系统
ICC 91 International Conference on Communications Conference Record Pub Date : 1991-06-23 DOI: 10.1109/ICC.1991.162413
T. Kajiwara, T. Ueda, H. Nakano, S. Yamakawa
{"title":"HDTV high-speed videotex prototype system","authors":"T. Kajiwara, T. Ueda, H. Nakano, S. Yamakawa","doi":"10.1109/ICC.1991.162413","DOIUrl":"https://doi.org/10.1109/ICC.1991.162413","url":null,"abstract":"The authors describe an HDTV (high-definition television) high-speed videotex prototype system that provides enhanced picture quality and a shorter response time. This system uses HDTV and B-ISDN (broadband integrated services digital network). Techniques such as a high-speed protocol processing, data transmitting, and parallel file access allow retrieval and display of 6 MB of still picture data within three seconds.<<ETX>>","PeriodicalId":210489,"journal":{"name":"ICC 91 International Conference on Communications Conference Record","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125003496","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}
引用次数: 4
Application of object-oriented techniques to the OAM&P of telecommunications networks 面向对象技术在电信网络OAM&P中的应用
ICC 91 International Conference on Communications Conference Record Pub Date : 1991-06-23 DOI: 10.1109/ICC.1991.162345
D. R. Andersen, T.T. Bezoza, P. Johnson, M. R. Moroses, D. Sidor
{"title":"Application of object-oriented techniques to the OAM&P of telecommunications networks","authors":"D. R. Andersen, T.T. Bezoza, P. Johnson, M. R. Moroses, D. Sidor","doi":"10.1109/ICC.1991.162345","DOIUrl":"https://doi.org/10.1109/ICC.1991.162345","url":null,"abstract":"The authors examine the recent efforts of the ANSI T1M1.5 committee to apply object-oriented (OO) data modeling techniques to the development of standards for the operations, administration, maintenance, and provisioning (OAM&P) of telecommunications networks (TNs). The use of these state-of-the-art data modeling techniques is launching the North American telecommunications network into an open, standard, multi-vendor communications environment. The authors present a description of the organization of the T1M1 standards body, a brief overview of the Telecommunications Management Network (TMN) model, the basic principles of OO data modeling, a description of recent network management standardization efforts in T1M1 that use these techniques, and a brief description of current T1M1 work.<<ETX>>","PeriodicalId":210489,"journal":{"name":"ICC 91 International Conference on Communications Conference Record","volume":"151 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123738592","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}
引用次数: 0
User-centered programmability of intelligent network features 以用户为中心的可编程智能网络的特点
ICC 91 International Conference on Communications Conference Record Pub Date : 1991-06-23 DOI: 10.1109/ICC.1991.162494
D. M. Figurski, M. Yuschik
{"title":"User-centered programmability of intelligent network features","authors":"D. M. Figurski, M. Yuschik","doi":"10.1109/ICC.1991.162494","DOIUrl":"https://doi.org/10.1109/ICC.1991.162494","url":null,"abstract":"One benefit of the evolving intelligent network (IN) is that the customer can quickly and easily change how services operate to satisfy their individual needs. The authors focus on modification of individual telecommunications services and features offered in IN Release 0.0. Topics addressed include the IN architecture, service creation and modification, terminal- and dual-tone multifrequency (DTMF)-based interactions, and future directions in customer access to IN services.<<ETX>>","PeriodicalId":210489,"journal":{"name":"ICC 91 International Conference on Communications Conference Record","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125594598","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}
引用次数: 0
A proposal of multimedia document architecture and video document architecture 提出了多媒体文档体系结构和视频文档体系结构
ICC 91 International Conference on Communications Conference Record Pub Date : 1991-06-23 DOI: 10.1109/ICC.1991.162418
W. Kameyama, T. Hanamura, H. Tominaga
{"title":"A proposal of multimedia document architecture and video document architecture","authors":"W. Kameyama, T. Hanamura, H. Tominaga","doi":"10.1109/ICC.1991.162418","DOIUrl":"https://doi.org/10.1109/ICC.1991.162418","url":null,"abstract":"The concepts of MDA, multimedia document architecture, and VDA, video document architecture, are proposed. Harmonization with existing multimedia architectures and integration of media are described, introducing a multimedia space. A multimedia meta-structure is centered in this multimedia space. A projection of the meta-structure to an axis or a plane of multimedia space makes a mapping to a specific media architecture. Each axis is considered as a multimedia element. As a candidate for a multimedia element in multimedia space, VDA is also proposed in order to edit video information. The time-domain structure and the scenery structure for it are introduced. The video processing model is also described.<<ETX>>","PeriodicalId":210489,"journal":{"name":"ICC 91 International Conference on Communications Conference Record","volume":"88 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116559706","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}
引用次数: 6
Integrated services for the 1990's 90年代的综合服务
ICC 91 International Conference on Communications Conference Record Pub Date : 1991-06-23 DOI: 10.1109/ICC.1991.162498
A. Jackson, M. J. McAllister
{"title":"Integrated services for the 1990's","authors":"A. Jackson, M. J. McAllister","doi":"10.1109/ICC.1991.162498","DOIUrl":"https://doi.org/10.1109/ICC.1991.162498","url":null,"abstract":"True integrated services for the 1990s should focus on the required services and not the transmission path of either narrowband ISDN or wideband ISDN. Integrated services for the 1990s will utilize computers and telephony switching equipment to provide solutions to customer needs. While ISDN will play a role in these services, LANs and other computer interfaces will also have a major role in the solutions. The switch to the computer applications interface concept will provide major opportunities for businesses to improve their telephony communication systems.<<ETX>>","PeriodicalId":210489,"journal":{"name":"ICC 91 International Conference on Communications Conference Record","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122960977","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}
引用次数: 0
Jitter reduction in SDH networks SDH网络中的抖动减少
ICC 91 International Conference on Communications Conference Record Pub Date : 1991-06-23 DOI: 10.1109/ICC.1991.162237
H. Sari, G. Karam
{"title":"Jitter reduction in SDH networks","authors":"H. Sari, G. Karam","doi":"10.1109/ICC.1991.162237","DOIUrl":"https://doi.org/10.1109/ICC.1991.162237","url":null,"abstract":"After a brief review of pointer adjustment jitter in networks based on the synchronous digital hierarchy (SDH) and of previously proposed solutions, two new desynchronizer designs to reduce jitter are described. The first is a PLL-type desynchronizer obtained through an appropriate modification of a previously proposed scheme. The second avoids the generation of the random noise required in PLL-type desynchronizers. Using a design example, it is shown that this simple technique achieves good jitter performance in the normal mode of operation of the network, and that it can cope with large frequency offsets when the network is in degraded mode due to a loss of synchronism in one of its nodes.<<ETX>>","PeriodicalId":210489,"journal":{"name":"ICC 91 International Conference on Communications Conference Record","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122204225","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}
引用次数: 1
Local throughput performance of packet radio networks with transmitting power control 具有发射功率控制的分组无线网络的本地吞吐量性能
ICC 91 International Conference on Communications Conference Record Pub Date : 1991-06-23 DOI: 10.1109/ICC.1991.162273
L. Hu
{"title":"Local throughput performance of packet radio networks with transmitting power control","authors":"L. Hu","doi":"10.1109/ICC.1991.162273","DOIUrl":"https://doi.org/10.1109/ICC.1991.162273","url":null,"abstract":"The authors have formulated the local throughput of packet radio networks (PRNs) with sparse topologies under these circumstances. Computer simulation has been used to show that (1) the multi-channel operation, together with the use of directional antennas, can increase the throughput of sparse PRNs by more than an order of magnitude, and (2) one can obtain comparable throughput performance with fewer codes by assigning codes to edges instead of nodes in CDMA (code-division multiple access) systems.<<ETX>>","PeriodicalId":210489,"journal":{"name":"ICC 91 International Conference on Communications Conference Record","volume":"493 1-2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116819990","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}
引用次数: 4
Dialable services at FDS1 and DS1 rates-the services network of the early 1990s FDS1和DS1速率的可拨号业务——90年代初的业务网络
ICC 91 International Conference on Communications Conference Record Pub Date : 1991-06-23 DOI: 10.1109/ICC.1991.162375
R. Das, P. Carbone
{"title":"Dialable services at FDS1 and DS1 rates-the services network of the early 1990s","authors":"R. Das, P. Carbone","doi":"10.1109/ICC.1991.162375","DOIUrl":"https://doi.org/10.1109/ICC.1991.162375","url":null,"abstract":"The authors describe a network-wide, dialable multirate service called wideband switched service. They identify the factors that are expected to fuel the rapid growth in demand for wideband (i.e., DS1 and fractional DS1 (FDS1) rates) services, including standards activities and end user applications. The need for large-scale deployment of a real-time circuit-switched network service at wideband rates up to DS1 is emphasized here. The authors discuss the past limitations of switched networks in connection with providing dialable wideband services, the application drivers for wideband services, and the opportunity for the carriers to provide a standard network service. They also identify the value of the wideband service as a bridge to future broadband services.<<ETX>>","PeriodicalId":210489,"journal":{"name":"ICC 91 International Conference on Communications Conference Record","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128262751","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}
引用次数: 1
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