MILCOM 2009 - 2009 IEEE Military Communications Conference最新文献_第9页

High frequency rough surface parabolic equation modeling for underwater acoustic communications 水声通信高频粗糙面抛物方程建模

MILCOM 2009 - 2009 IEEE Military Communications Conference Pub Date : 2009-10-18 DOI: 10.1109/MILCOM.2009.5379845

Allan P. Rosenberg, D. Chizhik, Qinqing Zhang

{"title":"High frequency rough surface parabolic equation modeling for underwater acoustic communications","authors":"Allan P. Rosenberg, D. Chizhik, Qinqing Zhang","doi":"10.1109/MILCOM.2009.5379845","DOIUrl":"https://doi.org/10.1109/MILCOM.2009.5379845","url":null,"abstract":"In this paper, we propose to develop an effective and efficient computational modeling technique to characterize the statistical properties that govern the performance and capacity of an underwater acoustic communication link. Specifically, we consider the challenging shallow water environment with a moving rough sea surface as the primary source of temporal variations. We incorporate a realistic sea surface for wind driven waves generated by the surface spectrum. We use meteorological and oceanic data measured by National Data Buoy Center (NDBC) buoy 44014 (36.611N 74.836W) and model estimates of downward radiation fluxes at its location to produce a time series, covering all of 2004 with 3 hr spacing, of the input parameters needed by the analytical spectral model. For one particular set of parameters, typical of March, we generate sea surface realizations and study their effect on acoustic propagation. We extend a parabolic equation (PE) model to compute the propagation of a high frequency, wide-band acoustic transmission with a time-varying sea surface. We provide numerical results of received signal power as a function of range and depth. Our modeling approach has both physical applicability and computation feasibility to generate channel impulse responses useful for adaptive underwater communications.","PeriodicalId":338641,"journal":{"name":"MILCOM 2009 - 2009 IEEE Military Communications Conference","volume":"71 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":"115421393","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: 6

Defense against Sybil attack in vehicular ad hoc network based on roadside unit support 基于路边单元支持的车载自组织网络中Sybil攻击防御

MILCOM 2009 - 2009 IEEE Military Communications Conference Pub Date : 2009-10-18 DOI: 10.1109/MILCOM.2009.5379844

Soyoung Park, B. Aslam, D. Turgut, C. Zou

引用次数: 141

On the performance of estimators for burst-mode offset QPSK 突发模偏置QPSK估计器的性能研究

MILCOM 2009 - 2009 IEEE Military Communications Conference Pub Date : 2009-10-18 DOI: 10.1109/MILCOM.2009.5380012

M. Rice, E. Perrins

引用次数: 6

Textile material characterization for SoftWear antennas SoftWear天线的纺织材料特性

MILCOM 2009 - 2009 IEEE Military Communications Conference Pub Date : 2009-10-18 DOI: 10.1109/MILCOM.2009.5380112

J. Lilja, P. Salonen

引用次数: 28

RF communication data model for satellite networks 卫星网络射频通信数据模型

MILCOM 2009 - 2009 IEEE Military Communications Conference Pub Date : 2009-10-18 DOI: 10.1109/MILCOM.2009.5379814

D. Beering, Shirley Tseng, J. Hayden, Aaron Corder, T. Ooi, D. Elwell, Henry Grabowski, Ryan Frederic, Jordan Franks, Ronald Fish, A. M. Johnson, Nicholas E. Gavin

{"title":"RF communication data model for satellite networks","authors":"D. Beering, Shirley Tseng, J. Hayden, Aaron Corder, T. Ooi, D. Elwell, Henry Grabowski, Ryan Frederic, Jordan Franks, Ronald Fish, A. M. Johnson, Nicholas E. Gavin","doi":"10.1109/MILCOM.2009.5379814","DOIUrl":"https://doi.org/10.1109/MILCOM.2009.5379814","url":null,"abstract":"This paper discusses the database structure of an RF taxonomy modeling tool being developed on a Missile Defense Agency (MDA), Phase II, Small Business Innovative Research (SBIR) augmentation contract. The tool is called the Communications System Taxonomy (CommTax) toolkit. The data model underlying the CommTax toolkit will be available to other users as a framework for the transfer of data to other system design tools. With the augmentation authorization, CommTax will include interoperation with Analytical Graphics, Inc. (AGI) Satellite Toolkit (STK), satellite modeling tool as well as the original task of interoperating with Scalable Network Technology's (SNT) QualNet network modeling tool. Interoperation with STK will enable a better visualization of a scenario that is set-up and run with CommTax. The QualNet interoperation enables CommTax to determine whether a scenario model is capable of passing enough data fast enough over the various IP and bit-stream, wired and wireless MDA networks to support a successful running of a scenario even if other data could cause congestion on the networks. The purpose of CommTax is to enable the communication engineer to model communications among multiple disparate nodes in the BMDS using Internet Protocol (IP) compliant networks for interconnection. The database framework and data interoperability objectives of the CommTax toolkit, are described in this paper","PeriodicalId":338641,"journal":{"name":"MILCOM 2009 - 2009 IEEE Military Communications Conference","volume":"52 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":"122555053","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

Admission control for multiple access in fading G-IC networks 衰落G-IC网络中多址准入控制

MILCOM 2009 - 2009 IEEE Military Communications Conference Pub Date : 2009-10-18 DOI: 10.1109/MILCOM.2009.5379979

Joseph Thomas

引用次数: 0

Gateway selection in multitiered mobile ad hoc networks 多层移动自组网中的网关选择

MILCOM 2009 - 2009 IEEE Military Communications Conference Pub Date : 2009-10-18 DOI: 10.1109/MILCOM.2009.5379739

Y. Gottlieb, S. Mau, C. Chiang, R. Chadha, Kimberly Moeltner, Thomas D'Silva, Y. Kumar

引用次数: 2

Search+: A resource efficient Peer-to-Peer service discovery mechanism Search+:资源高效的点对点服务发现机制

MILCOM 2009 - 2009 IEEE Military Communications Conference Pub Date : 2009-10-18 DOI: 10.1109/MILCOM.2009.5379898

Magnus Skjegstad, U. Roedig, F. T. Johnsen

引用次数: 3

OFDM signals based on shaping filters 基于整形滤波器的OFDM信号

MILCOM 2009 - 2009 IEEE Military Communications Conference Pub Date : 2009-10-18 DOI: 10.1109/MILCOM.2009.5380010

S. Yang

引用次数: 4

High performance microwave photonic links using double sideband suppressed carrier modulation and balanced coherent heterodyne detection 采用双边带抑制载波调制和平衡相干外差检测的高性能微波光子链路

MILCOM 2009 - 2009 IEEE Military Communications Conference Pub Date : 2009-10-18 DOI: 10.1109/MILCOM.2009.5380042

C. Middleton, R. DeSalvo

{"title":"High performance microwave photonic links using double sideband suppressed carrier modulation and balanced coherent heterodyne detection","authors":"C. Middleton, R. DeSalvo","doi":"10.1109/MILCOM.2009.5380042","DOIUrl":"https://doi.org/10.1109/MILCOM.2009.5380042","url":null,"abstract":"Optical transmission of microwave signals offers many advantages such as increased bandwidth; immunity to electromagnetic interference; reduction of size, weight and power consumption; and low, frequency-independent loss over long distances. But microwave photonic links often lack the performance required to replace traditional microwave links. We present a microwave photonic link architecture that enables high gain and dynamic range, low noise figure, and multi-octave bandwidth operation. Our method uses double sideband suppressed carrier modulation together with a balanced coherent heterodyne detection scheme. The modulation method increases link linearity by producing amplitude modulation based on the optical field rather than intensity. The combination of carrier suppression, optical amplification, phase-locked local oscillator insertion, and balanced detection provide high signal-efficient gain, reduced intermodulation distortion, wide-band operation, and low link noise. The resulting link places this microwave photonic approach in the same performance realm as state-of-the-art microwave links.","PeriodicalId":338641,"journal":{"name":"MILCOM 2009 - 2009 IEEE Military Communications Conference","volume":"84 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":"126071217","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: 15