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A high-capacity broadband packet switch architecture based on multilink approach 一种基于多链路方法的大容量宽带分组交换机体系结构
MILCOM 92 Conference Record Pub Date : 1992-10-11 DOI: 10.1109/MILCOM.1992.244173
I. Widjaja, H.S. Kim, A. Leon-Garcia
{"title":"A high-capacity broadband packet switch architecture based on multilink approach","authors":"I. Widjaja, H.S. Kim, A. Leon-Garcia","doi":"10.1109/MILCOM.1992.244173","DOIUrl":"https://doi.org/10.1109/MILCOM.1992.244173","url":null,"abstract":"The authors present a design for a broadband packet switch that uses multiple links in parallel to realize a high-speed channel. This implementation permits the switch to operate at the link rate, e.g. at 150 Mb/s, while having the ability to support a channel at higher rates, e.g. at 2.4 Gb/s. The main contribution of the design is that packet sequence on a channel is maintained even though packets are allowed to use any of the links belonging to the same channel. Besides allowing the switch to function at a slower rate than the transmission channel rate, the implementation of the multilinks benefits from statistical multiplexing gain.<<ETX>>","PeriodicalId":394587,"journal":{"name":"MILCOM 92 Conference Record","volume":"96 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133311253","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
Tactical communication systems with the GOSIP architecture 采用GOSIP架构的战术通信系统
MILCOM 92 Conference Record Pub Date : 1992-10-11 DOI: 10.1109/MILCOM.1992.244134
R. T. Harris
{"title":"Tactical communication systems with the GOSIP architecture","authors":"R. T. Harris","doi":"10.1109/MILCOM.1992.244134","DOIUrl":"https://doi.org/10.1109/MILCOM.1992.244134","url":null,"abstract":"The author proposes a solution to the issue of digital communications interoperability between tactical and strategic (or other) groups within an integrated communications architecture of the future. He proposes two significant changes that permit the tactical systems to be integrated into future communication systems. The first change requires a common set of communication protocols to be used over the communications system; the second change encapsulates the unique system and communications protocols within the tactical systems as complete subnetworks. These proposed changes permit connectivity between tactical and strategic groups in an integrated communications architecture and also meet unique tactical requirements. The GOSIP (Government Open Systems Interconnect Profile) communication protocols are proposed as the common data communication protocols.<<ETX>>","PeriodicalId":394587,"journal":{"name":"MILCOM 92 Conference Record","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132719353","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
Conversational voice communication over a high performance meteor burst channel 会话语音通信在一个高性能流星突发信道
MILCOM 92 Conference Record Pub Date : 1992-10-11 DOI: 10.1109/MILCOM.1992.244099
R. S. Mawrey, J. Larsen, J. Weitzen
{"title":"Conversational voice communication over a high performance meteor burst channel","authors":"R. S. Mawrey, J. Larsen, J. Weitzen","doi":"10.1109/MILCOM.1992.244099","DOIUrl":"https://doi.org/10.1109/MILCOM.1992.244099","url":null,"abstract":"The authors describe a meteor burst system with sufficient performance to provide conversational voice communication. An advanced computer-based modeling technique used to design the high-performance system is illustrated, and some key system design parameters and technological advances are identified. Measured results are presented and compared with those for previous systems, and some applications of the technological advances described are mentioned. The system provides a data throughput performance more than ten times greater than that of any previous system. The enhanced performance has enabled conversational voice to be communicated over the meteor channel with realistic message delay times.<<ETX>>","PeriodicalId":394587,"journal":{"name":"MILCOM 92 Conference Record","volume":"329 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134158717","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: 7
Analysis of uplink timing acquisition for SATCOM systems employing multiple chip-per-hop FH/DPSK 卫星通信系统中采用多片跳频/DPSK的上行时序采集分析
MILCOM 92 Conference Record Pub Date : 1992-10-11 DOI: 10.1109/MILCOM.1992.243954
R.M. Grayson, C.-D. Chung
{"title":"Analysis of uplink timing acquisition for SATCOM systems employing multiple chip-per-hop FH/DPSK","authors":"R.M. Grayson, C.-D. Chung","doi":"10.1109/MILCOM.1992.243954","DOIUrl":"https://doi.org/10.1109/MILCOM.1992.243954","url":null,"abstract":"The authors investigate the performance of bit timing acquisition for antijam satellite communication systems which may use frequency-hopped differential phase shift keying (FH/DPSK) signaling with multiple data bits per hop. A bit timing acquisition system for these systems is described, and an analytical model is based on the circular state diagram approach of Polydoros and Weber (IEEE Trans. Commun., Vol. COM-32, p.1260-8, Dec. 1984; Vol. COM-32, p.542-60, May 1984), extended to previously unpublished results for cell-variable branch gain function coefficients. Performance results are presented for uplink acquisition with the example phase sequence and various system parameters, demonstrating the flexibility of the modified circular state model.<<ETX>>","PeriodicalId":394587,"journal":{"name":"MILCOM 92 Conference Record","volume":"159 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126906990","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
Block biorthogonal channel coding using wavelets 块双正交信道编码使用小波
MILCOM 92 Conference Record Pub Date : 1992-10-11 DOI: 10.1109/MILCOM.1992.243995
M. A. Tzannes, M. Tzannes
{"title":"Block biorthogonal channel coding using wavelets","authors":"M. A. Tzannes, M. Tzannes","doi":"10.1109/MILCOM.1992.243995","DOIUrl":"https://doi.org/10.1109/MILCOM.1992.243995","url":null,"abstract":"The authors introduce block biorthogonal coding using wavelets, a channel coding method that uses the unique orthogonality properties of wavelet coefficient matrices (WCM) to efficiently encode information bits. The benefit of this algorithm is its diversity-based coding gains in fading and burst noise channels. The authors compare wavelet-Hadamard codes, which are obtained from wavelet-Hadamard matrices, a class of wavelet coefficient matrices, with traditional Hadamard codes and find them to be equivalent to additive white Gaussian noise and superior in fading and burst noise channels.<<ETX>>","PeriodicalId":394587,"journal":{"name":"MILCOM 92 Conference Record","volume":"156 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116604486","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: 7
Effect of CW and pulse jamming on direct-sequence spread-spectrum code acquisition using a sequential detector 连续波和脉冲干扰对序列检测器直接序列扩频码采集的影响
MILCOM 92 Conference Record Pub Date : 1992-10-11 DOI: 10.1109/MILCOM.1992.244151
K. Ravi, R. Ormondroyd
{"title":"Effect of CW and pulse jamming on direct-sequence spread-spectrum code acquisition using a sequential detector","authors":"K. Ravi, R. Ormondroyd","doi":"10.1109/MILCOM.1992.244151","DOIUrl":"https://doi.org/10.1109/MILCOM.1992.244151","url":null,"abstract":"The authors use a Monte-Carlo computer simulation to examine the effect of continuous-wave (CW) and pulse jamming, in the presence of additive Gaussian noise, on the acquisition performance of a noncoherent serial-search pseudonoise code synchronizer. The acquisition performances of three variants of the sequential detector, namely, the quantized log-likelihood detector, the biased square-law detector, and the ideal log-likelihood detector, are compared, and the degradation in performance is assessed. It is shown that, in the presence of Gaussian noise, the pulse jammer with a properly chosen duty factor can significantly degrade the acquisition performance compared to the CW jammer. Further, the pulsed jammer with a duty factor approaches 1.0 behaves similarly to the CW jammer at values of jammer-to-signal (J/S) less than 5 dB.<<ETX>>","PeriodicalId":394587,"journal":{"name":"MILCOM 92 Conference Record","volume":"79 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121692487","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: 11
Modeling and simulation (M&S) of communication systems 通信系统建模与仿真(M&S)
MILCOM 92 Conference Record Pub Date : 1992-10-11 DOI: 10.1109/MILCOM.1992.244086
V. Bettencourt, J. Lactera
{"title":"Modeling and simulation (M&S) of communication systems","authors":"V. Bettencourt, J. Lactera","doi":"10.1109/MILCOM.1992.244086","DOIUrl":"https://doi.org/10.1109/MILCOM.1992.244086","url":null,"abstract":"The authors provide broad perspectives on the modeling and simulation of communications as they relate to distributed interactive simulation (DIS). They also address the general concern of the US Department of Defense with the untapped potential of modeling and simulation, which has led to the establishment of significant new modeling and simulation programs based on a need for an accredited, real-time, fighter-in-the-loop simulation of the joint and combined battlefield.<<ETX>>","PeriodicalId":394587,"journal":{"name":"MILCOM 92 Conference Record","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124078396","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 fiber optic network for tactical communication system integration 用于战术通信系统集成的光纤网络
MILCOM 92 Conference Record Pub Date : 1992-10-11 DOI: 10.1109/MILCOM.1992.244057
J. J. Foster
{"title":"A fiber optic network for tactical communication system integration","authors":"J. J. Foster","doi":"10.1109/MILCOM.1992.244057","DOIUrl":"https://doi.org/10.1109/MILCOM.1992.244057","url":null,"abstract":"A portable, tactical technical control system which is modular, easily expanded, and easily transported has been developed. Implementation of a distributed fiber optic network with programmable network interfaces allows new subsystems to be easily integrated into the system and allows the system to expand through simple modular addition of equipment. The system provides a unique integration approach whereby each type of equipment is provided with a different programmable personality module to allow interface with the technical control equipment. Currently available personality modules include asynchronous, high-speed synchronous, and analog voice. These modules are racked with the communications equipment in standard racks for modular weather-tight containers and interconnected via cable to small commercial-off-the-shelf matrix switches located in the racks. Switches are interconnected via redundant fiber optic cables. Use of personality modules provides for simple inclusion of new types of equipment because the basic matrix switch does not change.<<ETX>>","PeriodicalId":394587,"journal":{"name":"MILCOM 92 Conference Record","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126365469","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
Image compression with fully-decomposed wavelet transform 用全分解小波变换进行图像压缩
MILCOM 92 Conference Record Pub Date : 1992-10-11 DOI: 10.1109/MILCOM.1992.244109
Kwo-Jyr Wong, C.-C. Jay Kuo
{"title":"Image compression with fully-decomposed wavelet transform","authors":"Kwo-Jyr Wong, C.-C. Jay Kuo","doi":"10.1109/MILCOM.1992.244109","DOIUrl":"https://doi.org/10.1109/MILCOM.1992.244109","url":null,"abstract":"The authors propose a novel transform which recursively applies the two-scale wavelet decomposition to all subimages. It is called the full wavelet transform (FWT). The authors use the FWT to transform an image into blocks of the same size, and show that these blocks have strong space-frequency correlation which can be effectively utilized to achieve high image compression ratio while preserving good image quality. The proposed method can be related to several other popular image compression schemes such as the DCT (discrete cosine transform), PWT (pyramidal wavelength transform), and SCB (subband coding) methods.<<ETX>>","PeriodicalId":394587,"journal":{"name":"MILCOM 92 Conference Record","volume":"161 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124511885","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: 3
The error probability of Reed-Solomon coding and interleaving on a bursty-noise channel 突发噪声信道上里德-所罗门编码与交错的错误概率
MILCOM 92 Conference Record Pub Date : 1992-10-11 DOI: 10.1109/MILCOM.1992.244062
W. Ebel, W. Tranter
{"title":"The error probability of Reed-Solomon coding and interleaving on a bursty-noise channel","authors":"W. Ebel, W. Tranter","doi":"10.1109/MILCOM.1992.244062","DOIUrl":"https://doi.org/10.1109/MILCOM.1992.244062","url":null,"abstract":"A useful bursty-noise channel model is proposed and, using this model, a binary communication system using Reed-Solomon coding and interleaving is analyzed. The model includes both thermal noise, which gives rise to random errors, and burst noise, which gives rise to error bursts. Error probabilities are derived for the uncoded system, and error probability bounds are derived for the coded system. Monte Carlo simulation results agree well with theory.<<ETX>>","PeriodicalId":394587,"journal":{"name":"MILCOM 92 Conference Record","volume":"102 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121027912","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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