MILCOM 2008 - 2008 IEEE Military Communications Conference最新文献_第9页

Clustering methods for distributed spectrum sensing in cognitive radio systems 认知无线电系统中分布式频谱感知的聚类方法

MILCOM 2008 - 2008 IEEE Military Communications Conference Pub Date : 2008-11-01 DOI: 10.1109/MILCOM.2008.4753432

A. Malady, C. da Silva

引用次数: 60

Packet acquisition for low-complexity frequency-hop receivers 低复杂度频率跳接收器的数据包采集

MILCOM 2008 - 2008 IEEE Military Communications Conference Pub Date : 2008-11-01 DOI: 10.1109/MILCOM.2008.4753238

F. J. Block, Hoang-Sy Nguyen

{"title":"Packet acquisition for low-complexity frequency-hop receivers","authors":"F. J. Block, Hoang-Sy Nguyen","doi":"10.1109/MILCOM.2008.4753238","DOIUrl":"https://doi.org/10.1109/MILCOM.2008.4753238","url":null,"abstract":"The diversity provided by frequency-hop (FH) signaling can protect against jamming and multiple access interference (MAI). A FH transmission consists of two parts - an acquisition preamble and a data payload. The acquisition preamble allows the receiver to detect and synchronize with an incoming packet. Acquisition must be at least as robust as demodulation and decoding. If acquisition fails, the receiver is unable to process the payload. Once acquisition has occurred, a receiver can simply tune a narrowband demodulator to the current hopping channel. However, during the acquisition stage, the lack of timing information makes it impossible to know what the current channel is. Instead, the optimal receiver must make an acquisition decision by simultaneously processing all channels over which the preamble is spread. If the preamble uses M channels, the receiver must have resources to tune to all M. Thus, it is desirable that M be small to keep the receiverpsilas complexity low. However, if M is small, the preamble lacks frequency diversity and may be vulnerable to jamming and MAI. We consider FH acquisition for cases where the preamble has limited frequency diversity and explore the trade-offs that must be made for robust performance in the presence of interference.","PeriodicalId":434891,"journal":{"name":"MILCOM 2008 - 2008 IEEE Military Communications Conference","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129065703","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: 10

TSAT network architecture TSAT网络架构

MILCOM 2008 - 2008 IEEE Military Communications Conference Pub Date : 2008-11-01 DOI: 10.1109/MILCOM.2008.4753508

J. Pulliam, Y. Zambre, A. Karmarkar, V. Mehta, J. Touch, J. Haines, M. Everett

引用次数: 25

Cooperative communications for improved throughput, range and covertness 协作通信，提高吞吐量，范围和隐蔽性

MILCOM 2008 - 2008 IEEE Military Communications Conference Pub Date : 2008-11-01 DOI: 10.1109/MILCOM.2008.4753032

Yiftach Eisenberg, Cedric Logan Bae

{"title":"Cooperative communications for improved throughput, range and covertness","authors":"Yiftach Eisenberg, Cedric Logan Bae","doi":"10.1109/MILCOM.2008.4753032","DOIUrl":"https://doi.org/10.1109/MILCOM.2008.4753032","url":null,"abstract":"Conventional wireless communication systems are designed based on point-to-point links whose performance is limited by the resources of a single transmitter, e.g., power and bandwidth. Cooperative communications on the other hand is an emerging and actively researched class of techniques that enables nodes to increase their performance by harnessing resources from other local neighboring nodes. This paper presents a cooperative communications approach called Extended Communications using Helper Organizations (ECHO) that can increase throughput, communication range, and covertness. One militarily significant benefit, first identified and analyzed in this paper, is that cooperative communications approaches are difficult to geo-locate. A cooperative communications link, such as ECHO, is hard to geo-locate because it appears to the adversary as multiple spatially distributed low power transmissions rather then a single high power source, as in conventional point-to-point communications. This paper introduces the general ECHO approach and presents a theoretical framework for quantifying itpsilas expected performance gains using information theory and estimation theory. ECHO can dramatically improve performance for a variety of military applications including sensor networks, MANETs, SATCOM, and ground based communications.","PeriodicalId":434891,"journal":{"name":"MILCOM 2008 - 2008 IEEE Military Communications Conference","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123731583","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: 8

DVoIP: Dynamic Voice-over-IP transformations for quality of service in bandwidth constrained environments DVoIP:带宽受限环境中用于服务质量的动态ip语音转换

MILCOM 2008 - 2008 IEEE Military Communications Conference Pub Date : 2008-11-01 DOI: 10.1109/MILCOM.2008.4753351

M. Craven, T.N. Le, P. Lardieri

引用次数: 6

A stochastic approximation approach for improving intrusion detection data fusion structures 一种改进入侵检测数据融合结构的随机逼近方法

MILCOM 2008 - 2008 IEEE Military Communications Conference Pub Date : 2008-11-01 DOI: 10.1109/MILCOM.2008.4753175

K. Manousakis, D. Sterne, N. Ivanic, G. Lawler, A. Mcauley

{"title":"A stochastic approximation approach for improving intrusion detection data fusion structures","authors":"K. Manousakis, D. Sterne, N. Ivanic, G. Lawler, A. Mcauley","doi":"10.1109/MILCOM.2008.4753175","DOIUrl":"https://doi.org/10.1109/MILCOM.2008.4753175","url":null,"abstract":"A variety of attacks on MANET routing, forwarding, and infrastructure protocols can only be detected using distributed cooperative algorithms. One promising strategy is to organize cooperative intrusion detection activities as a multiple-level intrusion detection (ID) hierarchy in which each node reports intrusion detection observations to its parent. This enables detection decisions to be based on aggregated data that has been gathered and consolidated from neighborhoods and larger network regions efficiently. A key challenge is the selection and maintenance of a scalable and robust hierarchy that optimizes detection performance (e.g., low latency, continuous coverage) while incurring minimal cost (e.g., bandwidth consumption). Existing approaches to constructing hierarchies in MANETs based on simple heuristics lack flexibility and cannot simultaneously address diverse performance and cost requirements. Moreover, mobility can produce constant large scale changes in the hierarchy that can degrade performance and increase cost. The main contributions of this paper are to: (a) identify ID structure design requirements and formulate them as objective functions and constraints, (b) adapt a multi-objective optimization framework to the formation of ID structures and, (c) provide indicative results concerning the quality of these structures with respect to the ID design requirements.","PeriodicalId":434891,"journal":{"name":"MILCOM 2008 - 2008 IEEE Military Communications Conference","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130781286","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: 17

The performance of flexible LDPC codes on Gaussian channels with bursty erasures 具有突发擦除的高斯信道上柔性LDPC码的性能

MILCOM 2008 - 2008 IEEE Military Communications Conference Pub Date : 2008-11-01 DOI: 10.1109/MILCOM.2008.4753230

C. Kose, T. Halford

引用次数: 0

Policy management in airborne tactical networks 空中战术网络中的策略管理

MILCOM 2008 - 2008 IEEE Military Communications Conference Pub Date : 2008-11-01 DOI: 10.1109/MILCOM.2008.4753463

G. Kuthethoor, P. Sesha, J. Strohm, P. O'Neal, G. Hadynski, D. Climek, J. Delmedico, D. Kiwior, D. Dunbrack, D. Parker

{"title":"Policy management in airborne tactical networks","authors":"G. Kuthethoor, P. Sesha, J. Strohm, P. O'Neal, G. Hadynski, D. Climek, J. Delmedico, D. Kiwior, D. Dunbrack, D. Parker","doi":"10.1109/MILCOM.2008.4753463","DOIUrl":"https://doi.org/10.1109/MILCOM.2008.4753463","url":null,"abstract":"Policy management in a traditional IP network is accomplished by employing Policy Enforcement Points (PEP) and Policy Decision Points (PDP). Policy management has a configuration model and an outsourcing model. In a configuration model, a PDP will send new policies to a PEP to enforce. In an outsourcing model, a PEP will contact a PDP for a decision as to admit or deny traffic. In dynamic airborne tactical edge networks, fast-moving aircraft and terrain obscuration combine to create conditions where traditional policy management may be less effective to be deployed and fielded. In this paper, we study the efficacy of the configuration model in a dynamic Mobile Ad-hoc Network (MANET) by trying to answer the following questions: How quickly can we rectify a network problem by deploying new policies? Is it possible to deploy a new policy if the problem restricts communication between PDP and PEP? We will also study a case where a PEP will contact a PDP to decide on granting or denying a resource reservation request as applicable to the Resource Reservation Protocol (RSVP). This study will also consider the usage of advanced and aggregated RSVP (A-RSVP and AR-RSVP) protocols for making resource reservations. Modifications to the policy enforcement algorithms will be proposed to improve and meet end-to-end Service Level Agreements. The performance analysis in a simulation environment will be conducted for various tactical edge network scenarios.","PeriodicalId":434891,"journal":{"name":"MILCOM 2008 - 2008 IEEE Military Communications Conference","volume":"76 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131012626","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

Optimal weighted data gathering in multi-hop heterogeneous sensor networks 多跳异构传感器网络的最优加权数据采集

MILCOM 2008 - 2008 IEEE Military Communications Conference Pub Date : 2008-11-01 DOI: 10.1109/MILCOM.2008.4753346

Junlin Li, G. AlRegib

引用次数: 4

Intrusion detection of in-band wormholes in MANETs using advanced statistical methods 基于先进统计方法的manet带内虫洞入侵检测

MILCOM 2008 - 2008 IEEE Military Communications Conference Pub Date : 2008-11-01 DOI: 10.1109/MILCOM.2008.4753177

Shanshan Zheng, T. Jiang, J. Baras, A. Sonalker, D. Sterne, R. Gopaul, R. Hardy

引用次数: 16