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IEEE Global Telecommunications Conference, 1989, and Exhibition. 'Communications Technology for the 1990s and Beyond最新文献

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Performance analysis of a growable architecture for broadband packet (ATM) switching 宽带分组(ATM)交换的可增长架构的性能分析
IEEE Global Telecommunications Conference, 1989, and Exhibition. 'Communications Technology for the 1990s and Beyond Pub Date : 1989-11-27 DOI: 10.1109/GLOCOM.1989.64140
M. Karol, I. Chih-Lin
{"title":"Performance analysis of a growable architecture for broadband packet (ATM) switching","authors":"M. Karol, I. Chih-Lin","doi":"10.1109/GLOCOM.1989.64140","DOIUrl":"https://doi.org/10.1109/GLOCOM.1989.64140","url":null,"abstract":"The authors examine a growable architecture for broadband packet (asynchronous transfer mode) switching, consisting of a memoryless, self-routing interconnect fabric and modest-size packet switch modules, proposed by K.U. Eng et al. (1989). They focus on the cell loss probability, because the architecture attains the best possible delay-throughput performance if the packet switch modules use output queueing. They compute an upper bound on the cell loss probability for arbitrary patterns of independent cell arrivals, possibly including isochronous circuit connections, and show that both sources of cell loss can be made negligibly small. For example, to guarantee a cell loss probability of less than 10/sup -9/, this growable architecture requires packet switch modules of dimension 47*16, 45*16, 42*16, and 39*16 for 100%, 90%, 80%, and 70% traffic loads, respectively. The analytic techniques used to bound the cell loss probabilities are applicable to other output queueing architectures.<<ETX>>","PeriodicalId":256305,"journal":{"name":"IEEE Global Telecommunications Conference, 1989, and Exhibition. 'Communications Technology for the 1990s and Beyond","volume":"77 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1989-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114032072","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: 65
A consideration on single-mode fibers for frequency-division-multiplexing transmission systems 对分频复用传输系统中单模光纤的思考
IEEE Global Telecommunications Conference, 1989, and Exhibition. 'Communications Technology for the 1990s and Beyond Pub Date : 1989-11-27 DOI: 10.1109/GLOCOM.1989.63927
N. Shibata, Y. Azuma, K. Nosu
{"title":"A consideration on single-mode fibers for frequency-division-multiplexing transmission systems","authors":"N. Shibata, Y. Azuma, K. Nosu","doi":"10.1109/GLOCOM.1989.63927","DOIUrl":"https://doi.org/10.1109/GLOCOM.1989.63927","url":null,"abstract":"Dispersion-shifted (DS) and non-dispersion-shifted (NDS) fibers are investigated from the viewpoint of crosstalk restriction due to fiber nonlinearities such as simulated Brillouin scattering and four-wave mixing processes in a frequency-division-multiplexing (FDM) transmission system. The applicability of the two fiber types is discussed, taking account of channel frequency separation, total channel numbers, input signal power, transmission length, and receiver sensitivity degradation. It is noted that NDS fibers operated at lambda =1550 nm can be widely deployed in multichannel systems both for the long haul and information distribution transmissions if the signal waveform distortion due to fiber chromatic dispersion is precluded. The DS fibers can also be widely deployed by increasing channel frequency separation in FDM systems toward higher information capacity and longer repeaterless spans.<<ETX>>","PeriodicalId":256305,"journal":{"name":"IEEE Global Telecommunications Conference, 1989, and Exhibition. 'Communications Technology for the 1990s and Beyond","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1989-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124338037","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
A nominal channel allocation algorithm for cellular mobile systems 一种蜂窝移动系统的标称信道分配算法
IEEE Global Telecommunications Conference, 1989, and Exhibition. 'Communications Technology for the 1990s and Beyond Pub Date : 1989-11-27 DOI: 10.1109/GLOCOM.1989.64010
Ming Zhang, T. Yum
{"title":"A nominal channel allocation algorithm for cellular mobile systems","authors":"Ming Zhang, T. Yum","doi":"10.1109/GLOCOM.1989.64010","DOIUrl":"https://doi.org/10.1109/GLOCOM.1989.64010","url":null,"abstract":"An algorithm for allocating nominal channels according to the traffic distribution is designed. The algorithm attempts to minimize the average blocking probability as nominal channels are allocated one at a time. Simulation shows that the traffic carrying capacity in the system can be increased by about 10% with the use of this channel allocation algorithm and that this gain is additive to the improvement obtained from the channel borrowing strategies. If shadow blocking is used in the channel assignment strategies, only a very small increase in the traffic carrying capacity is observed.<<ETX>>","PeriodicalId":256305,"journal":{"name":"IEEE Global Telecommunications Conference, 1989, and Exhibition. 'Communications Technology for the 1990s and Beyond","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1989-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127772802","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: 5
Performance in the presence of laser chirp of high speed optical communication systems employing semiconductor laser preamplifiers 采用半导体激光前置放大器的高速光通信系统在激光啁啾存在下的性能
IEEE Global Telecommunications Conference, 1989, and Exhibition. 'Communications Technology for the 1990s and Beyond Pub Date : 1989-11-27 DOI: 10.1109/GLOCOM.1989.64052
R. Fyath, J. O'Reilly
{"title":"Performance in the presence of laser chirp of high speed optical communication systems employing semiconductor laser preamplifiers","authors":"R. Fyath, J. O'Reilly","doi":"10.1109/GLOCOM.1989.64052","DOIUrl":"https://doi.org/10.1109/GLOCOM.1989.64052","url":null,"abstract":"The performance in the presence of laser chirp of optical receivers incorporating semiconductor laser preamplifiers is investigated quantitatively. The analyses make use of a lightwave system simulation package designed to accommodate transmitter, fiber, semiconductor laser amplifier, and receiver characteristics. Transmission at 4 Gb/s through a single-mode fiber (SMF) is simulated, taking into account the interaction between laser wavelength chirp and both fiber chromatic dispersion and optical-amplifier transmission characteristics. The results indicate that the mismatch penalty, arising from the transiently varying mismatch between the instantaneous laser wavelength and the peak gain-wavelength of the amplifier, can be reduced substantially by tuning the amplifier wavelength to 0.7-0.8 AA less than the static lasing mode of the laser.<<ETX>>","PeriodicalId":256305,"journal":{"name":"IEEE Global Telecommunications Conference, 1989, and Exhibition. 'Communications Technology for the 1990s and Beyond","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1989-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126235179","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
Coherent multichannel broadcast network 相干多通道广播网络
IEEE Global Telecommunications Conference, 1989, and Exhibition. 'Communications Technology for the 1990s and Beyond Pub Date : 1989-11-27 DOI: 10.1109/GLOCOM.1989.63992
W. Sessa, R. Welter, M. Maeda, R. Wagner, R. Vodhanel, R. Laming
{"title":"Coherent multichannel broadcast network","authors":"W. Sessa, R. Welter, M. Maeda, R. Wagner, R. Vodhanel, R. Laming","doi":"10.1109/GLOCOM.1989.63992","DOIUrl":"https://doi.org/10.1109/GLOCOM.1989.63992","url":null,"abstract":"The design and performance of a 16-channel coherent broadcast network at 155.52 Mb/s are reported. It uses packaged 1.54- mu m DFB (distributed feedback) lasers stabilized at absolute frequencies and a tunable, polarization-insensitive receiver. System experiments show that a power penalty of 0.3 dB is incurred at a channel spacing of 8.5 GHz due to adjacent channel crosstalk. Results using an erbium-doped fiber amplifier gave a fiber-to-fiber gain of 22 dB and an amplifier dynamic range of 15 dB for the entire transmission spectrum. This made possible the distribution of sixteen 155-Mb/s signals to one of 256 end-users at a distance of 102 km.<<ETX>>","PeriodicalId":256305,"journal":{"name":"IEEE Global Telecommunications Conference, 1989, and Exhibition. 'Communications Technology for the 1990s and Beyond","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1989-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126534407","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
ATM: bandwidth assignment and bandwidth enforcement policies ATM:带宽分配和带宽强制策略
IEEE Global Telecommunications Conference, 1989, and Exhibition. 'Communications Technology for the 1990s and Beyond Pub Date : 1989-11-27 DOI: 10.1109/GLOCOM.1989.64249
G. Gallassi, G. Rigolio, L. Fratta
{"title":"ATM: bandwidth assignment and bandwidth enforcement policies","authors":"G. Gallassi, G. Rigolio, L. Fratta","doi":"10.1109/GLOCOM.1989.64249","DOIUrl":"https://doi.org/10.1109/GLOCOM.1989.64249","url":null,"abstract":"Two techniques are presented: the class-related rule and the virtual leaky bucket mechanism. It is shown that the former can effectively solve the bandwidth-assignment problem for ATM (asynchronous transfer mode) when different classes of services are multiplexed on the same network trunk. The virtual leaky bucket technique is used as a bandwidth-enforcement policy. It has the advantage of combining the policing function on each source with congestion control on the cell loss rate in the network. The implementation complexity is not cumbersome, and both techniques can be realized with existing technology at the B-ISDN (broadband integrated services digital network) transmission speed.<<ETX>>","PeriodicalId":256305,"journal":{"name":"IEEE Global Telecommunications Conference, 1989, and Exhibition. 'Communications Technology for the 1990s and Beyond","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1989-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126541319","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: 233
Signal flow graphs for path enumeration and deflection routing analysis in multihop networks 多跳网络中路径枚举和偏转路由分析的信号流图
IEEE Global Telecommunications Conference, 1989, and Exhibition. 'Communications Technology for the 1990s and Beyond Pub Date : 1989-11-27 DOI: 10.1109/GLOCOM.1989.64114
E. Ayanoglu
{"title":"Signal flow graphs for path enumeration and deflection routing analysis in multihop networks","authors":"E. Ayanoglu","doi":"10.1109/GLOCOM.1989.64114","DOIUrl":"https://doi.org/10.1109/GLOCOM.1989.64114","url":null,"abstract":"The method of signal flow graphs is applied to path enumeration and deflection routing performance analysis in multihop networks. The method uses a labeling of the edges of the network graph and the subsequent solution for the transfer function of the resulting signal flow graph. A Taylor series expansion of the transfer function yields the number of paths of a given length between the source and the destination. It is desirable that this number be large so that routing strategies can provide alternate paths to reach a node in case of congestion or link failure, with increased reliability, recoverability, and reduced delay. On the other hand, the derivative of the transfer function yields the average number of hops in the network as a rational function of the probability of deflection of a packet. A fixed-point algorithm is used to solve for the probability of deflection as a function of the arrival rate of packets. Combining the two results permits the average number of hops to be obtained as a function of the packet arrival rate. Analysis examples chosen from proposed multihop network architectures are given.<<ETX>>","PeriodicalId":256305,"journal":{"name":"IEEE Global Telecommunications Conference, 1989, and Exhibition. 'Communications Technology for the 1990s and Beyond","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1989-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128064739","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: 28
Enhanced NEXTAR VSAT terminals for satellite data network 用于卫星数据网络的增强型NEXTAR VSAT终端
IEEE Global Telecommunications Conference, 1989, and Exhibition. 'Communications Technology for the 1990s and Beyond Pub Date : 1989-11-27 DOI: 10.1109/GLOCOM.1989.64128
S. Endo, Y. Koh, S. Kachi, N. Sonetaka, S. Omagari, T. Miyake, S. Otani
{"title":"Enhanced NEXTAR VSAT terminals for satellite data network","authors":"S. Endo, Y. Koh, S. Kachi, N. Sonetaka, S. Omagari, T. Miyake, S. Otani","doi":"10.1109/GLOCOM.1989.64128","DOIUrl":"https://doi.org/10.1109/GLOCOM.1989.64128","url":null,"abstract":"An overview of the enhanced NEXTAR VSAT (very small aperture terminal) is presented. Particular emphasis is placed on some new functions used to achieve high performance characteristics and high reliability with low cost. A simplified block diagram of the VSAT is shown.<<ETX>>","PeriodicalId":256305,"journal":{"name":"IEEE Global Telecommunications Conference, 1989, and Exhibition. 'Communications Technology for the 1990s and Beyond","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1989-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125616830","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: 2
On the effect of interference from a cluster of spread spectrum stations 扩频台群干扰的影响
IEEE Global Telecommunications Conference, 1989, and Exhibition. 'Communications Technology for the 1990s and Beyond Pub Date : 1989-11-27 DOI: 10.1109/GLOCOM.1989.64217
V. Prabhu
{"title":"On the effect of interference from a cluster of spread spectrum stations","authors":"V. Prabhu","doi":"10.1109/GLOCOM.1989.64217","DOIUrl":"https://doi.org/10.1109/GLOCOM.1989.64217","url":null,"abstract":"With the advent of micro earth stations using spread-spectrum (SS) technology, a victim terrestrial radio receiver is likely to be subjected to uplink interference from many earth stations, especially near metropolitan areas. Statistical methodology is used to characterize the intermittent use of SS transmitters, making it possible develop a model for the interference generated from such a cluster of transmitters. It is shown how current coordination and design procedures must be revised if one wants to optimize the use of SS technology without harmful interference to victim terrestrial receivers. For example, for a cluster size of 50 and activity factor of 10%, it is shown that the effective number of exposures can be taken to be 15. This numer is not exceeded 99.99% of the time when one or more transmitters are active and transmitting.<<ETX>>","PeriodicalId":256305,"journal":{"name":"IEEE Global Telecommunications Conference, 1989, and Exhibition. 'Communications Technology for the 1990s and Beyond","volume":"108 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1989-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121950918","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
The application of microwave TDMA to BETR service 微波时分多址技术在BETR业务中的应用
IEEE Global Telecommunications Conference, 1989, and Exhibition. 'Communications Technology for the 1990s and Beyond Pub Date : 1989-11-27 DOI: 10.1109/GLOCOM.1989.64118
M. Morris
{"title":"The application of microwave TDMA to BETR service","authors":"M. Morris","doi":"10.1109/GLOCOM.1989.64118","DOIUrl":"https://doi.org/10.1109/GLOCOM.1989.64118","url":null,"abstract":"The application of point-to-multipoint TDMA (time division multiple access) subscriber radio to BETR (basic exchange telecommunictions radio) subscriber service is discussed. Using a new high-capacity system as an example, the TDMA technique is described, along with the key elements of the frame structure, voice encoding, and common channel signaling. The major hardware items are presented, and the resulting subscriber services (including full integrated services digital network capability) and performance are discussed. The design of the radio system and its contribution to performance and reliability are examined, and overall system maintenance and control are described.<<ETX>>","PeriodicalId":256305,"journal":{"name":"IEEE Global Telecommunications Conference, 1989, and Exhibition. 'Communications Technology for the 1990s and Beyond","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1989-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127915624","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
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