MILCOM 2009 - 2009 IEEE Military Communications Conference最新文献_第3页

QoS-based optimal adaptive playout-buffer scheduling using the packet arrival distribution 基于qos的最优自适应播放缓冲调度，使用数据包到达分布

MILCOM 2009 - 2009 IEEE Military Communications Conference Pub Date : 2009-10-18 DOI: 10.1109/MILCOM.2009.5379831

Sanghyun Chi, B. Womack

引用次数: 5

Security in cognitive radio networks: An example using the commercial IEEE 802.22 standard 认知无线网络中的安全性:使用商用IEEE 802.22标准的示例

MILCOM 2009 - 2009 IEEE Military Communications Conference Pub Date : 2009-10-18 DOI: 10.1109/MILCOM.2009.5380058

A. Mody, R. Reddy, T. Kiernan, T. Brown

{"title":"Security in cognitive radio networks: An example using the commercial IEEE 802.22 standard","authors":"A. Mody, R. Reddy, T. Kiernan, T. Brown","doi":"10.1109/MILCOM.2009.5380058","DOIUrl":"https://doi.org/10.1109/MILCOM.2009.5380058","url":null,"abstract":"Security in wireless networks is challenging. Security in cognitive radio networks (CRN) is even more challenging. This is because a CRN consists of cognitive radios (CR) which have many more functions and processes to account for, such as sensing, geolocation, spectrum management, access to the policy database etc. Each of these functions and processes need to be assessed for potential vulnerabilities and security mechanisms need to be provided for protection of not just the secondary users of the spectrum but also the primary users or the incumbents. This paper discusses the potential security vulnerabilities and the remediations for the same in a CRN with an example using a commercial IEEE 802.22 standard. Due to the unique characteristics of the CRs in a CRN, enhanced security mechanisms are required. The security mechanisms in CRN are divided into several security sub-layers which protect non-cognitive as well as cognitive functions of the system and the interactions between the two. This paper describes these security features as incorporated into the IEEE 802.22 standard. It is possible to apply similar security mechanisms for a military CRN.","PeriodicalId":338641,"journal":{"name":"MILCOM 2009 - 2009 IEEE Military Communications Conference","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114731121","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: 21

Acquisition and mobility operational scenarios in the MUOS system MUOS系统中的获取和移动操作场景

MILCOM 2009 - 2009 IEEE Military Communications Conference Pub Date : 2009-10-18 DOI: 10.1109/MILCOM.2009.5379766

Nicole Loomis, D. Bossler

{"title":"Acquisition and mobility operational scenarios in the MUOS system","authors":"Nicole Loomis, D. Bossler","doi":"10.1109/MILCOM.2009.5379766","DOIUrl":"https://doi.org/10.1109/MILCOM.2009.5379766","url":null,"abstract":"The Mobile User Objective System (MUOS) is largely based on 3rd Generation Partnership Project (3GPP) standards, however, these standards are intended for terrestrial mobile communications networks. As a result of incorporating geosynchronous satellites into the design (e.g., extended propagation delays, power, cell size), modifications to the 3GPP procedures, such as moving control of cell selection, are needed. The operational scenarios related to acquisition and mobility are dictated by the operational mode of a MUOS radio - point-to-point, group, or Emissions Control (EMCON) - as well as whether a MUOS service (e.g., ‘voice call’) is currently active. This paper describes the operational implications of mobility and acquisition on MUOS radios, and the design challenges that are met to satisfy Customer anticipated levels of service. In order to support the three operational modes with common procedures, the MUOS design for acquisition and mobility has moved control of the mobility event from the radio (standard 3GPP operation) to the Ground Segment (GS); resulting in message and data flow modifications specific to MUOS. Additionally, whereas 3GPP operation does not notify users of a mobility event, the MUOS does provide that knowledge for the user involved in a mobility event as well as other users impacted (e.g., the talker in a group call informs the listeners of its mobility event).","PeriodicalId":338641,"journal":{"name":"MILCOM 2009 - 2009 IEEE Military Communications Conference","volume":"392 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124535845","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

Experiment and field demonstration of a 802.11-based ground-UAV mobile ad-hoc network 基于802.11的地面无人机移动自组网实验与现场演示

MILCOM 2009 - 2009 IEEE Military Communications Conference Pub Date : 2009-10-18 DOI: 10.1109/MILCOM.2009.5379932

C. Danilov, T. Henderson, T. Goff, J. H. Kim, J. Macker, Jeffery W. Weston, N. Neogi, A. Ortiz, D. Uhlig

引用次数: 23

Effects of narrowband interference and nonlinear amplifier in companded OFDM with application to 802.11n WLAN 窄带干扰和非线性放大器对OFDM在802.11n无线局域网中的应用的影响

MILCOM 2009 - 2009 IEEE Military Communications Conference Pub Date : 2009-10-18 DOI: 10.1109/MILCOM.2009.5380057

D. Chi, P. Das

{"title":"Effects of narrowband interference and nonlinear amplifier in companded OFDM with application to 802.11n WLAN","authors":"D. Chi, P. Das","doi":"10.1109/MILCOM.2009.5380057","DOIUrl":"https://doi.org/10.1109/MILCOM.2009.5380057","url":null,"abstract":"It is a well known fact that Orthogonal Frequency Division Multiplexing (OFDM) suffers from high peak to average power ratio (PAPR). The nonlinear distortion introduced by an OFDM signal through practical amplifiers can further degrade the system performance. Due to the limited bandwidth in the radio frequency spectrum, it is impossible that wireless communication systems can operate in an environment which is free from all interference such as narrowband interference (NBI). Hence, it is important to understand how an OFDM system performs when it is subject to NBI interference. In this paper, we analyze the performance of a M-ary Quadrature Amplitude Modulation (MQAM) OFDM system which is subject to nonlinear high power amplifiers (HPAs) and NBI in a Rayleigh fading channel. In order to reduce the nonlinear distortion caused by HPAs, we propose a new companding technique to reduce the PAPR and a novel receiver structure to minimize the degradation effects from the decompander when the OFDM system operates in Rayleigh fading channel. For the purpose of simulation, we extend the analytical model to be in compliance with the IEEE 802.11n standard. The theoretical results are verified with the simulation.","PeriodicalId":338641,"journal":{"name":"MILCOM 2009 - 2009 IEEE Military Communications Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128195972","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

Quality of Service in us air force information management systems 美国空军信息管理系统的服务质量

MILCOM 2009 - 2009 IEEE Military Communications Conference Pub Date : 2009-10-18 DOI: 10.1109/MILCOM.2009.5379929

J. Loyall, M. Gillen, A. Sinclair, M. Carvalho, L. Bunch, M. Marcon, Andrew J. Martignoni

{"title":"Quality of Service in us air force information management systems","authors":"J. Loyall, M. Gillen, A. Sinclair, M. Carvalho, L. Bunch, M. Marcon, Andrew J. Martignoni","doi":"10.1109/MILCOM.2009.5379929","DOIUrl":"https://doi.org/10.1109/MILCOM.2009.5379929","url":null,"abstract":"Warfighters in today's asymmetric engagements need access to mission-critical information no matter when and where it becomes available. Information Management Services (IMSs) based on publish-subscribe-query services have emerged as an important enabler of tactical information dominance in combined tactical and enterprise military situations. IMSs support information brokering and dissemination between decoupled information producers and consumers, for both future (publish-subscribe) and historical (publish-archive-query) information. To support operations in dynamic environments, IMSs require Quality of Service (QoS) capabilities to ensure prioritized delivery of mission-critical information, to mediate conflicting demands for information brokering and dissemination resources in constrained situations, and to adapt IMS operations to changing missions, roles, and priorities. This paper describes a set of QoS management services, QoS Enabled Dissemination (QED), that provide policy driven, dynamic, aggregate QoS management across the users of IMSs. The paper describes the QED prototype implementation and experimental results illustrating the improvement of QED over a non-QoS enabled IMS baseline.","PeriodicalId":338641,"journal":{"name":"MILCOM 2009 - 2009 IEEE Military Communications Conference","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121763348","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

Towards middleware based situation awareness 迈向基于中间件的态势感知

MILCOM 2009 - 2009 IEEE Military Communications Conference Pub Date : 2009-10-18 DOI: 10.1109/MILCOM.2009.5379986

L. Motus, M. Meriste, J. Preden

引用次数: 21

Incorporating high-fidelity networked communications modeling in the evaluation of large-scale system-of-systems 将高保真网络通信建模纳入大规模系统的系统评估

MILCOM 2009 - 2009 IEEE Military Communications Conference Pub Date : 2009-10-18 DOI: 10.1109/MILCOM.2009.5379747

N. Miner, Craig R. Lawton, K. Welch, Brian van Leeuwen, G. Kelsch

{"title":"Incorporating high-fidelity networked communications modeling in the evaluation of large-scale system-of-systems","authors":"N. Miner, Craig R. Lawton, K. Welch, Brian van Leeuwen, G. Kelsch","doi":"10.1109/MILCOM.2009.5379747","DOIUrl":"https://doi.org/10.1109/MILCOM.2009.5379747","url":null,"abstract":"Military force structures are becoming increasingly complex and net-centric as new technologies are developed and deployed. As such, there is an ever increasing need to provide system-of-systems (SoS) analysis tools to assist in evaluating a military combat team's survivability, lethality, sustainment and logistics. Evaluation of networked communications as part of this analysis is often overlooked due to the complexity and scope of the communications problem. A team lead by Sandia National Laboratories (SNL) is developing net-centric SoS modeling and analysis capabilities by integrating high-fidelity networked communications modeling with a large-scale, SoS simulation and analysis tool. The combined modeling approach brings together the strengths of each tool to achieve complex, net-centric SoS analysis. This paper describes the combined modeling and simulation(M&S) capability and presents example analysis results from the completed phase-one effort. Experiments conducted show the effect of functional communications on a combat team's survivability at a SoS-level. The result is an approach that bridges the gap in high-fidelity communications modeling with logistics and survivability for large-scale SoS problems.","PeriodicalId":338641,"journal":{"name":"MILCOM 2009 - 2009 IEEE Military Communications Conference","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131356570","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

Cross-layer transmission scheduling for direct-sequence spread-spectrum ad hoc networks 直接序列扩频自组网的跨层传输调度

MILCOM 2009 - 2009 IEEE Military Communications Conference Pub Date : 2009-10-18 DOI: 10.1109/MILCOM.2009.5380115

B. J. Wolf, H. Russell

引用次数: 0

Predicting nonlinear behavior in receive phased array antennas 接收相控阵天线非线性特性预测

MILCOM 2009 - 2009 IEEE Military Communications Conference Pub Date : 2009-10-18 DOI: 10.1109/MILCOM.2009.5379910

B. Pigon

引用次数: 3