IEEE Military Communications Conference, 2003. MILCOM 2003.最新文献_第9页

The tradeoff between diversity gain and interference suppression via beamforming in a CDMA system 在CDMA系统中通过波束形成实现分集增益和干扰抑制之间的权衡

IEEE Military Communications Conference, 2003. MILCOM 2003. Pub Date : 2003-10-13 DOI: 10.1109/MILCOM.2003.1290343

Y. Zhang, L. Milstein, P. Siegel

引用次数: 1

Clustering for transmission range control and connectivity assurance for self configured ad hoc networks 自配置自组织网络的传输范围控制和连通性保证的聚类

IEEE Military Communications Conference, 2003. MILCOM 2003. Pub Date : 2003-10-13 DOI: 10.1109/MILCOM.2003.1290311

K. Manousakis, J. Baras

{"title":"Clustering for transmission range control and connectivity assurance for self configured ad hoc networks","authors":"K. Manousakis, J. Baras","doi":"10.1109/MILCOM.2003.1290311","DOIUrl":"https://doi.org/10.1109/MILCOM.2003.1290311","url":null,"abstract":"Ad hoc networks have been the new networking technology trend because of their promising characteristics. These characteristics fit better the requirements of today's army and the needs of today's commercial world. Most of the applications that have been referred in the bibliography assume devices that are of finite power. The latter is true because of the existing technology (web enabled cell phones, PDAs, laptops, PPCs). The goal for ad hoc networks is to accommodate light weight, battery powered portable devices. Because of the finite power limitation, we have to design efficient ways to use the existing power. A first step towards efficient utilization of power is to eliminate its unnecessary usage wherever possible. For a networking device, significant part of power is consumed for communications and more specifically for transmissions. In this work we focus on eliminating the transmission power consumed into the network subject to the network's connectivity. The assurance of network connectivity is essential in this problem since the usage of limited transmission power from the nodes may result in a partitioned network. We provide solutions to the efficient usage of transmission power by clustering the nodes based on their proximity and ensuring the intracluster and intercluster connectivity of the network. The algorithms presented in this paper achieve their objective as the collected results from their simulation show.","PeriodicalId":435910,"journal":{"name":"IEEE Military Communications Conference, 2003. MILCOM 2003.","volume":"891 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123042000","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: 16

Applicability of the JTRS software communications architecture in advanced MILSATCOM terminals JTRS软件通信体系结构在先进军事卫星通信终端中的适用性

IEEE Military Communications Conference, 2003. MILCOM 2003. Pub Date : 2003-10-13 DOI: 10.1109/MILCOM.2003.1290159

L. Pucker

引用次数: 6

The theoretical power spectral density of SOQPSK signals in the presence of phase quantization and timing jitter errors 研究了存在相位量化和时序抖动误差时SOQPSK信号的理论功率谱密度

IEEE Military Communications Conference, 2003. MILCOM 2003. Pub Date : 2003-10-13 DOI: 10.1109/MILCOM.2003.1290071

C. Bishop, M. Fahey

引用次数: 0

Channel equalization for high data rate MIMO systems 高数据速率MIMO系统的信道均衡

IEEE Military Communications Conference, 2003. MILCOM 2003. Pub Date : 2003-10-13 DOI: 10.1109/MILCOM.2003.1290359

P. Amihood, L. Milstein, J. Proakis

引用次数: 2

Constant envelope binary OFDM phase modulation 恒包络二进制OFDM相位调制

IEEE Military Communications Conference, 2003. MILCOM 2003. Pub Date : 2003-10-13 DOI: 10.1109/MILCOM.2003.1290175

S. C. Thompson, J. Proakis, J. Zeidler

引用次数: 43

High throughput, power and spectrally efficient communications in dynamic multipath environments 动态多径环境下的高吞吐量、功率和频谱效率通信

IEEE Military Communications Conference, 2003. MILCOM 2003. Pub Date : 2003-10-13 DOI: 10.1109/MILCOM.2003.1290078

Thomas Carter, Sungill Kim, Mark Johnson, Trellisware

{"title":"High throughput, power and spectrally efficient communications in dynamic multipath environments","authors":"Thomas Carter, Sungill Kim, Mark Johnson, Trellisware","doi":"10.1109/MILCOM.2003.1290078","DOIUrl":"https://doi.org/10.1109/MILCOM.2003.1290078","url":null,"abstract":"Many military applications require robust high data rate communications in severe mobile, multipath or highly dynamic environments. In these cases minimizing size and maximizing power efficiency is usually also of great interest. Examples include terrestrial communications in urban settings where line of sight may not be available as well as links to highly dynamic aircraft and missiles. Most high throughput, bandwidth efficient waveforms in use today (e.g. OFDM or QAM) are very sensitive to dynamics and multipath. They also are often characterized by significant peak to average transmit power that prohibit the use of more efficient transmitter designs. Extensive trade-off analysis and simulations were performed for selecting the coding and constant envelope (power efficient), spectrally efficient modulation schemes combined with receive processing, that achieves \"turbo-like\" performance. The implemented receiver combines soft-input/soft-output (SISO) equalization and decoding via adaptive iterative detection (AID) techniques and exhibits excellent performance even in severe dynamic multipath fading channels with large delay spreads. Reduced complexity algorithms were designed for hardware implementation and their performance was evaluated.","PeriodicalId":435910,"journal":{"name":"IEEE Military Communications Conference, 2003. MILCOM 2003.","volume":"94 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115355065","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

Centralized power allocation algorithms for OFDM cellular networks OFDM蜂窝网络的集中功率分配算法

IEEE Military Communications Conference, 2003. MILCOM 2003. Pub Date : 2003-10-13 DOI: 10.1109/MILCOM.2003.1290405

Chi-Hsiao Yih, Evaggelos Geranotis

引用次数: 14

Full wave propagation model based on moving window FDTD 基于移动窗口FDTD的全波传播模型

IEEE Military Communications Conference, 2003. MILCOM 2003. Pub Date : 2003-10-13 DOI: 10.1109/MILCOM.2003.1290431

R. Luebbers, J. Schuster, K. Wu

{"title":"Full wave propagation model based on moving window FDTD","authors":"R. Luebbers, J. Schuster, K. Wu","doi":"10.1109/MILCOM.2003.1290431","DOIUrl":"https://doi.org/10.1109/MILCOM.2003.1290431","url":null,"abstract":"A new approach to wave oriented radio propagation modeling based on extended finite difference time domain (FDTD) methods has been developed. The new approach takes advantage of the fact that when a pulsed radio wave propagates over a long distance the significant pulse energy exists only over a small part of the propagation path at any instant of time. This allows the use of a relatively small FDTD computational mesh that exists only over a portion of the propagation path, moving along with the pulse energy. At the leading edge of the FDTD mesh inside the moving window the appropriate terrain and atmospheric material parameters are added to the mesh. At the trailing edge the terrain, foliage and atmosphere that has been left behind by the pulse is removed. Absorbing boundaries are used appropriately at the boundaries of the mesh. The potential savings over using a full FDTD mesh over the entire length of the propagation path are enormous. The proposed method promises to be the first full wave method applicable to radio propagation prediction calculations over long propagation paths. The moving window FDTD method has been applied to propagation over different types of irregular terrain. Comparisons with path loss measurements and ray-based methods show good accuracy and illustrate the advantages of a full wave method. Applications to foliage covered terrain have also been demonstrated.","PeriodicalId":435910,"journal":{"name":"IEEE Military Communications Conference, 2003. MILCOM 2003.","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115693347","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

Peer to peer information management for tactical situation awareness systems 战术态势感知系统点对点信息管理

IEEE Military Communications Conference, 2003. MILCOM 2003. Pub Date : 2003-10-13 DOI: 10.1109/MILCOM.2003.1290099

Frank Hinchion, P. Mulgaonkar, D. Wilkins, Slavko Galuga

引用次数: 3