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MILCOM 2002. Proceedings最新文献

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Virtual cell layout based dynamic source routing algorithm for the mobile subsystem of the next generation tactical communications systems 基于虚拟小区布局的下一代战术通信系统移动子系统动态源路由算法
MILCOM 2002. Proceedings Pub Date : 2002-10-07 DOI: 10.1109/MILCOM.2002.1180500
M. Soyturk, E. Cayirci, A. E. Harmanci
{"title":"Virtual cell layout based dynamic source routing algorithm for the mobile subsystem of the next generation tactical communications systems","authors":"M. Soyturk, E. Cayirci, A. E. Harmanci","doi":"10.1109/MILCOM.2002.1180500","DOIUrl":"https://doi.org/10.1109/MILCOM.2002.1180500","url":null,"abstract":"A virtual cell layout (VCL) based dynamic source routing (VB-DSR) technique is introduced for the mobile subsystem of the next generation tactical communications systems. VB-DSR uses a dynamic source routing (DSR) protocol over the VCL structure, which is a resource management and clustering technique for tactical communications. The application of third generation personal communications services to tactical communications is enabled through a hybrid, i.e., ad hoc and cellular, infrastructureless architecture by VCL. VB-DSR enhances the schemes for the ad hoc components of this architecture. The performance evaluation of the proposed technique shows that the VB-DSR is scalable for tactical communications.","PeriodicalId":191931,"journal":{"name":"MILCOM 2002. Proceedings","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127363211","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
TCP fast recovery from link blockage in satellite communications on-the-move 在移动中的卫星通信中，TCP从链路阻塞中快速恢复
MILCOM 2002. Proceedings Pub Date : 2002-10-07 DOI: 10.1109/MILCOM.2002.1180414
J. Kim, M. Albuquerque
{"title":"TCP fast recovery from link blockage in satellite communications on-the-move","authors":"J. Kim, M. Albuquerque","doi":"10.1109/MILCOM.2002.1180414","DOIUrl":"https://doi.org/10.1109/MILCOM.2002.1180414","url":null,"abstract":"Satellite communications on-the-move (SOTM) often experiences an interruption in reliable data communications when man-made objects, terrain. and foliage block the satellite link. In this paper, we investigate the effects of such link blockages on the performance of a TCP connection., and provide a solution based on TCP gateways that implement a TCP-splitting technique to overcome the satellite link limitations. We show an experimental study of using and adequately configuring the TCP gateway to recover data quickly from the link blockage.","PeriodicalId":191931,"journal":{"name":"MILCOM 2002. Proceedings","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130841053","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
Effect of pulse noise jamming and phase noise on a coherent RAKE receiver with maximum-likelihood detection and convolutional coding 脉冲噪声干扰和相位噪声对最大似然检测卷积编码相干RAKE接收机的影响
MILCOM 2002. Proceedings Pub Date : 2002-10-07 DOI: 10.1109/MILCOM.2002.1180531
K. Kowalske, R. C. Robertson
{"title":"Effect of pulse noise jamming and phase noise on a coherent RAKE receiver with maximum-likelihood detection and convolutional coding","authors":"K. Kowalske, R. C. Robertson","doi":"10.1109/MILCOM.2002.1180531","DOIUrl":"https://doi.org/10.1109/MILCOM.2002.1180531","url":null,"abstract":"The effect of pulse noise jamming and phase noise on a coherent RAKE receiver with convolutional coding is analyzed. The effect of additive white Gaussian noise (AWGN) is also included in the analysis. The maximum-likelihood RAKE receiver for the combination of pulse noise and AWGN is derived. Pulse jamming usually has a significant effect when soft decision decoding is used, however, we show that the maximum-likelihood RAKE receiver effectively mitigates the effects of the pulse noise jammer. Phase noise causes an irreducible error floor when soft decision decoding is used. The maximum-likelihood RAKE receiver with hard decision decoding reduces the effect of pulse noise jamming and can provide performance below the irreducible error floor obtained with soft decision decoding.","PeriodicalId":191931,"journal":{"name":"MILCOM 2002. Proceedings","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130850465","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
Selective transparency in resilient optical networks 弹性光网络中的选择性透明性
MILCOM 2002. Proceedings Pub Date : 2002-10-07 DOI: 10.1109/MILCOM.2002.1180416
R. Giles, K. Kumaran, D. Mitra, C. Nuzman, I. Saniee
{"title":"Selective transparency in resilient optical networks","authors":"R. Giles, K. Kumaran, D. Mitra, C. Nuzman, I. Saniee","doi":"10.1109/MILCOM.2002.1180416","DOIUrl":"https://doi.org/10.1109/MILCOM.2002.1180416","url":null,"abstract":"Core optical networks can benefit from lower costs and increased speed by reducing O-E-O conversions through use of ultra long reach optical transport, and bit-rate and wavelength transparent cross-connects. While pure optical transparency avoids the high cost of deploying optical termination units (OTUs) for each wavelength channel, it incurs nest, costs with additional fiber requirements and reduced provisioning capability. This paper describes an intermediate option, selective transparency, that uses small pools of wavelength converters at cross-connect nodes, which combines the advantages of reduced OTU count, minimal additional fiber, and high reconfigurability to support changing traffic patterns.","PeriodicalId":191931,"journal":{"name":"MILCOM 2002. Proceedings","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129032227","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
Network security through conservation of complexity 通过保护复杂性来实现网络安全
MILCOM 2002. Proceedings Pub Date : 2002-10-07 DOI: 10.1109/MILCOM.2002.1179637
S. Evans, B. Barnett
{"title":"Network security through conservation of complexity","authors":"S. Evans, B. Barnett","doi":"10.1109/MILCOM.2002.1179637","DOIUrl":"https://doi.org/10.1109/MILCOM.2002.1179637","url":null,"abstract":"The problem of network security is approached from the point of view of Kolmogorov complexity (see Evans. S, et al., Proc. DARPA Inf. Survivability Conf. & Exposition II, vol 2. p.322-33, 2001). The principle of conservation of complexity is utilized to identify healthy complexity norms objectively and detect attacks via deviation of these norms under TCP/IP. Observed complexity changes that fall within expected hounds are indicators of system health, while complexity changes outside the expected bounds for normal protocol and application use are indicators of system fault or attack. Experimental results using FTP normal and attack sessions are presented.","PeriodicalId":191931,"journal":{"name":"MILCOM 2002. Proceedings","volume":"263 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123052290","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: 20
User friendly security solutions for the MUSO common air interface (CAI) 用户友好的MUSO公共空中接口(CAI)安全解决方案
MILCOM 2002. Proceedings Pub Date : 2002-10-07 DOI: 10.1109/MILCOM.2002.1180460
G. Huckell
{"title":"User friendly security solutions for the MUSO common air interface (CAI)","authors":"G. Huckell","doi":"10.1109/MILCOM.2002.1180460","DOIUrl":"https://doi.org/10.1109/MILCOM.2002.1180460","url":null,"abstract":"The Navy Communications Satellite Program Office is directing the development of the Mobile User Objective Svstem (MUOS) to meet a continuing Department of Defense (DoD) requirement for mobile unprotected narrowband beyond line-of-sight communications. The MUOS will replace the current UHF Follow-On (UFO) satellite constellation as those satellites reach end-of-life, and needs to provide a higher quality of service than the current UFO system is capable of providing. As part of this effort a new Common Air Interface (CAI) will be developed to standardize the waveform used between MUOS user terminals and the satellite. This paper describes the security issues that will need to be considered when specifying this CAI. The CAI needs to provide user-friendly security solutions for the protection of both orderwire and baseband information, with the goal of eliminating the requirement for users to handle keying material.","PeriodicalId":191931,"journal":{"name":"MILCOM 2002. Proceedings","volume":"148 Pt 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126317972","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
Modeling the impacts of interference from a satellite ground station on a personal communication system (PCS) 卫星地面站干扰对个人通信系统影响的建模
MILCOM 2002. Proceedings Pub Date : 2002-10-07 DOI: 10.1109/MILCOM.2002.1179668
J. Hant, C. Tsang, Tien Nguyen
{"title":"Modeling the impacts of interference from a satellite ground station on a personal communication system (PCS)","authors":"J. Hant, C. Tsang, Tien Nguyen","doi":"10.1109/MILCOM.2002.1179668","DOIUrl":"https://doi.org/10.1109/MILCOM.2002.1179668","url":null,"abstract":"In this paper, the impacts of interference from a satellite ground station on a personal communication system (PCS) are modeled. A semi-analytical model is first developed to predict the BER performance of a typical PCS base station receiver in the presence of interference from a satellite ground station. The model takes into account the relative transmitted power, waveform structures, antenna patterns, relative geometry, and traffic patterns for both the PCS and satellite ground station systems. In order to assess the accuracy of the semi-analytical model, a simulation model is developed, which more accurately describes the PCS base-station receiver. Simulations are run for a small set of conditions and results show that the predictions of the simulation and semi-analytical models are in close agreement.","PeriodicalId":191931,"journal":{"name":"MILCOM 2002. Proceedings","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121226568","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
The effect of power-control dynamics on the reverse-link capacity of a mobile CDMA cellular network 功率控制动态对移动CDMA蜂窝网络反向链路容量的影响
MILCOM 2002. Proceedings Pub Date : 2002-10-07 DOI: 10.1109/MILCOM.2002.1179597
J. S. Skinner, D. Noneaker
{"title":"The effect of power-control dynamics on the reverse-link capacity of a mobile CDMA cellular network","authors":"J. S. Skinner, D. Noneaker","doi":"10.1109/MILCOM.2002.1179597","DOIUrl":"https://doi.org/10.1109/MILCOM.2002.1179597","url":null,"abstract":"The lack of a high-data-rate wireline backbone in a tactical CDMA cellular network limits the ability of the network to hand off mobile terminals rapidly between neighboring base stations. In previous work, it is shown that the limitation on handoff capability can have a severe impact on the reverse-link capacity of the network. The previous results employ an analysis of network capacity in which the multiple-access interference in each link is modeled as a stationary, Gaussian random process. In this paper, we employ a substantial refinement of the model in which we account for the dependence of the power-control dynamics of the multiple reverse links in the network. An evaluation is presented for the capacity of the network. The results are used to examine the effect of limited handoff capability on the network capacity.","PeriodicalId":191931,"journal":{"name":"MILCOM 2002. Proceedings","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123763434","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 geometric air-to-ground radio channel model 一个几何空对地无线电信道模型
MILCOM 2002. Proceedings Pub Date : 2002-10-07 DOI: 10.1109/MILCOM.2002.1180518
W. G. Newhall, Jeffrey H. Reed
{"title":"A geometric air-to-ground radio channel model","authors":"W. G. Newhall, Jeffrey H. Reed","doi":"10.1109/MILCOM.2002.1180518","DOIUrl":"https://doi.org/10.1109/MILCOM.2002.1180518","url":null,"abstract":"Presents a geometric channel model for simulation and analysis of air-to-ground radio communications. The model represents an airborne station communicating with a ground station in a cluttered environment (e.g., ground-based, mobile transceiver in an urban or village region). The model call be used to produce multipath component delay, strength, and direction of arrival (DOA) information, and it is therefore well suited for simulating vector channels for smart antenna arrays and antenna diversity systems. This air-to-ground channel model is based on a three-dimensional ellipsoidal geometry and uses principles similar to those used by the geometrically based single-bounce elliptical (GBSBE) and geometrically based single-bounce circular (GBSBC) models. However, instead of assuming two ground-based stations, this geometric air-to,ground model uses altitude and range information. The result is the ability to simulate multipath air-to-ground channels with a geometry more appropriate for the physical configuration of the stations.","PeriodicalId":191931,"journal":{"name":"MILCOM 2002. Proceedings","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123878987","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: 37
Advanced airborne military communications architectures enabled by commercial broadband satellite communications 由商业宽带卫星通信实现的先进机载军事通信架构
MILCOM 2002. Proceedings Pub Date : 2002-10-07 DOI: 10.1109/MILCOM.2002.1180437
R.L. Brosmer, G.S. Hopp, R. Ashcraft
{"title":"Advanced airborne military communications architectures enabled by commercial broadband satellite communications","authors":"R.L. Brosmer, G.S. Hopp, R. Ashcraft","doi":"10.1109/MILCOM.2002.1180437","DOIUrl":"https://doi.org/10.1109/MILCOM.2002.1180437","url":null,"abstract":"The advent of commercial broadband satellite communications systems and services for in-flight civil aircraft provides the opportunity to enable advanced military communications architectures sooner than government-planned systems and associated bandwidth will be available. Application of these commercial systems/services to MILSATCOM architectures and concept of operations is discussed herein. These newly evolving satcom technologies for commercial aviation applications provide national and international governmental departments additional options to supplement supporting ever-expanding requirements in the rapidly changing \"information age\". The need to \"keep up\" with technology, which has life cycles of 12 to 18 months, versus the fielding of major new MILSATCOM infrastructure with life cycles of 10 - 25 years, leaves governments at tremendous shortfall in capability versus demand. Even with new programs fielded, the exponential growth of bandwidth requirements, as exemplified by the Internet, points to the need to supplement non-mission critical communications to other than high demand, mission critical government unique MILSATCOM assets. These new commercial broadband SATCOM systems and services offer the chance to \"bridge the gap\" between existing capabilities and future government programs while providing valuable operational experience that can be applied to those future programs. Moreover, the commercial broadband SATCOM systems/services can enable new communications architectures that help meet the \"network centric warfare\", global information grid connectivity, and real-time data requirements that exist today.","PeriodicalId":191931,"journal":{"name":"MILCOM 2002. Proceedings","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115171018","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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