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Proceedings of ICCS '94最新文献

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Dynamic behavior of a microwave power amplifier/combiner 微波功率放大器/组合器的动态特性
Proceedings of ICCS '94 Pub Date : 1994-11-14 DOI: 10.1109/ICCS.1994.474068
S. Wang, S. Tan
{"title":"Dynamic behavior of a microwave power amplifier/combiner","authors":"S. Wang, S. Tan","doi":"10.1109/ICCS.1994.474068","DOIUrl":"https://doi.org/10.1109/ICCS.1994.474068","url":null,"abstract":"A dynamic theory of a microwave power amplifier/combiner is presented and a gain expression is obtained at small input signal level. It is found that the gain-bandwidth product (GBP) will increase when the resonant frequency difference /spl delta//sub 21/ of these two combined amplifiers increases, so that by controlling /spl delta//sub 21/ one can obtain a broader bandwidth than the single amplifier whose GBP is constant 1.<<ETX>>","PeriodicalId":158681,"journal":{"name":"Proceedings of ICCS '94","volume":"110 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127549540","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
Experience in prototyping the service switching point for AIN 有AIN服务交换点原型设计经验
Proceedings of ICCS '94 Pub Date : 1994-11-14 DOI: 10.1109/ICCS.1994.474298
K. Kim, Hee Jin Lim, Y. Kang, Hyeong-Ho Lee, Young Si Kim
{"title":"Experience in prototyping the service switching point for AIN","authors":"K. Kim, Hee Jin Lim, Y. Kang, Hyeong-Ho Lee, Young Si Kim","doi":"10.1109/ICCS.1994.474298","DOIUrl":"https://doi.org/10.1109/ICCS.1994.474298","url":null,"abstract":"In the advanced intelligent network (AIN), the service switching point (SSP) is regarded as the keystone entity which discriminates the AIN service calls from other ordinary calls, provides a suitable process for them, and connects them to destination parties. We developed an AIN SSP prototype to verify the SSP functions before the complete implementation of a real system. We present the implementation of an AIN SSP prototype for the intelligent network (IN) Capability Set-1 (CS-1) recommended by the International Telecommunication Union-Telecommunication standardization sector (ITU-T), i.e., a prototype configuration and software structure based on the service switching function (SSF)/call control function (CCF) model described in the ITU-T Q.1214 recommendation.<<ETX>>","PeriodicalId":158681,"journal":{"name":"Proceedings of ICCS '94","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125462070","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
An IIR adaptive line enhancer with controlled bandwidth 一种带宽可控的IIR自适应线路增强器
Proceedings of ICCS '94 Pub Date : 1994-11-14 DOI: 10.1109/ICCS.1994.474155
B. Farhang-Boroujeny
{"title":"An IIR adaptive line enhancer with controlled bandwidth","authors":"B. Farhang-Boroujeny","doi":"10.1109/ICCS.1994.474155","DOIUrl":"https://doi.org/10.1109/ICCS.1994.474155","url":null,"abstract":"An IIR adaptive line enhancer (ALE), previously proposed by David, Stearns, Elliott and Etter (1983) is explored further. We propose a mechanism for controlling the bandwidth of the ALE, in an adaptive manner. The proposed mechanism increases the bandwidth of the ALE whenever its peak is not close to a spectral line of the input signal, to assure its fast convergence, and decreases the bandwidth of the ALE when its peak matches a spectral line of the input signal, to enhance that spectral line further. Also, a new algorithm for robust adaptation of the ALE is proposed.<<ETX>>","PeriodicalId":158681,"journal":{"name":"Proceedings of ICCS '94","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121019680","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: 24
A programmable bursty traffic algorithm for use in packet-level discrete time packet switch simulation studies 用于分组级离散时间分组交换仿真研究的可编程突发流量算法
Proceedings of ICCS '94 Pub Date : 1994-11-14 DOI: 10.1109/ICCS.1994.474253
J. Senior, M. D. Wilson, A. Phillips, R. Cryan, I. Hawker
{"title":"A programmable bursty traffic algorithm for use in packet-level discrete time packet switch simulation studies","authors":"J. Senior, M. D. Wilson, A. Phillips, R. Cryan, I. Hawker","doi":"10.1109/ICCS.1994.474253","DOIUrl":"https://doi.org/10.1109/ICCS.1994.474253","url":null,"abstract":"A novel scheme for the classification and reproduction of packet channel burstiness is presented. Channels are described by burst-length-loading pairs, and an algorithm is presented which can faithfully reproduce any traffic characteristic for use in packet-level discrete time packet switch simulation studies.<<ETX>>","PeriodicalId":158681,"journal":{"name":"Proceedings of ICCS '94","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126852731","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
Adaptive motion-compensated interframe prediction coding using subjective thresholding of wavelet transform coefficients 基于小波变换系数主观阈值的自适应运动补偿帧间预测编码
Proceedings of ICCS '94 Pub Date : 1994-11-14 DOI: 10.1109/ICCS.1994.474300
D. Gunawan, R. G. Lane, D. Nguyen
{"title":"Adaptive motion-compensated interframe prediction coding using subjective thresholding of wavelet transform coefficients","authors":"D. Gunawan, R. G. Lane, D. Nguyen","doi":"10.1109/ICCS.1994.474300","DOIUrl":"https://doi.org/10.1109/ICCS.1994.474300","url":null,"abstract":"A psychovisual image compression method using multiresolution wavelet coefficients for adaptive motion compensation interframe prediction is proposed. It is shown that a higher compression ratio is achieved using this scheme when compared to the existing techniques.<<ETX>>","PeriodicalId":158681,"journal":{"name":"Proceedings of ICCS '94","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126972721","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
Simulation of a 3 priority queueing model to improve the quality of service (QOS) in ATM network 提高ATM网络服务质量的3优先级排队模型仿真
Proceedings of ICCS '94 Pub Date : 1994-11-14 DOI: 10.1109/ICCS.1994.474165
S. Ahmed, B. Ali, M. Abbas, B. Moorehead
{"title":"Simulation of a 3 priority queueing model to improve the quality of service (QOS) in ATM network","authors":"S. Ahmed, B. Ali, M. Abbas, B. Moorehead","doi":"10.1109/ICCS.1994.474165","DOIUrl":"https://doi.org/10.1109/ICCS.1994.474165","url":null,"abstract":"We introduce computer simulation results that illustrate performance trade-offs associated with the mixed priority queueing model (MPQ) for the initial introductory phase of switching and demultiplexing fabrics for ATM based high-speed multimedia networking services. We study the hierarchical shared memory ATM switch architecture in which the queues for all the switch output ports share space flexibly in a common buffer. Using computer simulation of this shared buffer ATM switch under both uniform and bursty traffic, we investigate the delay and cell loss probability (CLP) for the each class of traffic. Our finding supports the MPQ model as a worthwhile strategy for buffer management to improve the quality of service (QOS) in an ATM etwork.<<ETX>>","PeriodicalId":158681,"journal":{"name":"Proceedings of ICCS '94","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124479964","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
8-element spiral array antenna for satellite communications 卫星通信用八元螺旋阵列天线
Proceedings of ICCS '94 Pub Date : 1994-11-14 DOI: 10.1109/ICCS.1994.474171
Yasuhiro Kazama, T. Suda
{"title":"8-element spiral array antenna for satellite communications","authors":"Yasuhiro Kazama, T. Suda","doi":"10.1109/ICCS.1994.474171","DOIUrl":"https://doi.org/10.1109/ICCS.1994.474171","url":null,"abstract":"A compact, light in weight array antenna using a spiral element is proposed for satellite communications in portable use. The antenna consists of an antenna panel and a reflector. A dielectric substrate is used for the antenna panel, on which is etched the spiral elements and the feed circuit on both sides of the dielectric substrate. Thus, the antenna panel and the reflector are completely separate to each other. Therefore, it is convenient to carry the antenna because of the possibility of integration of the antenna panel and reflector.<<ETX>>","PeriodicalId":158681,"journal":{"name":"Proceedings of ICCS '94","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122594445","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
Variance reduction of source-tracking response zeros of adaptive arrays in the presence of errors 存在误差时自适应阵列源跟踪响应零点方差的减小
Proceedings of ICCS '94 Pub Date : 1994-11-14 DOI: 10.1109/ICCS.1994.474268
C. C. Ko, K. H. Low
{"title":"Variance reduction of source-tracking response zeros of adaptive arrays in the presence of errors","authors":"C. C. Ko, K. H. Low","doi":"10.1109/ICCS.1994.474268","DOIUrl":"https://doi.org/10.1109/ICCS.1994.474268","url":null,"abstract":"A new technique to reduce the variances of the source-tracking response zeros of power inversion arrays in the presence of random amplitude and phase errors is investigated. Essentially, the ten, variances are reduced by dividing the original system into several spatially shifted power inversion arrays, averaging the weight vectors of these arrays, and determining the zeros of the spatially averaged weight vector. Equations for the optimal averaging weights and the ensuing variance performance are derived and verified by simulation results. It is found that the new technique may reduce the zero variance substantially when compared with taking the entire system as a single array.<<ETX>>","PeriodicalId":158681,"journal":{"name":"Proceedings of ICCS '94","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131524828","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
Providing support for real-time multimedia data transfer 支持实时多媒体数据传输
Proceedings of ICCS '94 Pub Date : 1994-11-14 DOI: 10.1109/ICCS.1994.474259
R. Schatzmayr, C. Fan
{"title":"Providing support for real-time multimedia data transfer","authors":"R. Schatzmayr, C. Fan","doi":"10.1109/ICCS.1994.474259","DOIUrl":"https://doi.org/10.1109/ICCS.1994.474259","url":null,"abstract":"This paper describes the architecture of a front end system able to transfer real-time multimedia data. The system behaves as an interface between different multimedia sources/sinks such as audio/video devices, and an ATM network. Three important points of our work are described: the hardware architecture that consists of a parallel processing platform and external devices interfaces; the operating system that uses scheduling policy which exploits the characteristics of multimedia data and offers different classes of processes; the transport protocol mechanisms that provide support for real time multimedia data transfer.<<ETX>>","PeriodicalId":158681,"journal":{"name":"Proceedings of ICCS '94","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131313911","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
New addressing scheme for ring type topology ATM-LAN 环形拓扑ATM-LAN的新寻址方案
Proceedings of ICCS '94 Pub Date : 1994-11-14 DOI: 10.1109/ICCS.1994.474059
Sun-Moo Kang, Byung-Chun Jeon, D. Kim
{"title":"New addressing scheme for ring type topology ATM-LAN","authors":"Sun-Moo Kang, Byung-Chun Jeon, D. Kim","doi":"10.1109/ICCS.1994.474059","DOIUrl":"https://doi.org/10.1109/ICCS.1994.474059","url":null,"abstract":"This paper describes a new addressing scheme on the shared medium ring topology. First of all the necessity of the new addressing scheme is described and then the requirement for the ring type ATM-LAN addressing is described. At last we will suggest a new addressing scheme for solving some problems in the existing addressing scheme and for improving usage of the network capacity. The new addressing scheme deletes connectionless cells as well as connection oriented cells at the destination node for the spatial reuse. Also proposed scheme is studied when network is interconnected to existing LANs and B-ISDN through IWU (Interworking Unit). The new addressing scheme is very useful for accommodating multicast and broadcast application in the various on-coming B-ISDN services.<<ETX>>","PeriodicalId":158681,"journal":{"name":"Proceedings of ICCS '94","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126321849","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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