IEEE Military Communications Conference, 2003. MILCOM 2003.最新文献_第5页

Serial concatenated single differential space-time coding with soft decision feedback channel estimation 带有软判决反馈信道估计的串行级联单差分空时编码

IEEE Military Communications Conference, 2003. MILCOM 2003. Pub Date : 2003-10-13 DOI: 10.1109/MILCOM.2003.1290093

Yi Yao, M. Howlader

引用次数: 1

Generation of attenuation time-series for EHF SATCOM simulation EHF卫星通信仿真中衰减时间序列的生成

IEEE Military Communications Conference, 2003. MILCOM 2003. Pub Date : 2003-10-13 DOI: 10.1109/MILCOM.2003.1290154

D. Hodges, R. Watson, A. Page, P. Watson

引用次数: 6

Physics-based propagation models for channels involving mixed paths 涉及混合路径的信道的基于物理的传播模型

IEEE Military Communications Conference, 2003. MILCOM 2003. Pub Date : 2003-10-13 DOI: 10.1109/MILCOM.2003.1290432

R. Luebbers, J. Schuster, S. Fast

{"title":"Physics-based propagation models for channels involving mixed paths","authors":"R. Luebbers, J. Schuster, S. Fast","doi":"10.1109/MILCOM.2003.1290432","DOIUrl":"https://doi.org/10.1109/MILCOM.2003.1290432","url":null,"abstract":"Predicting the radio signal levels and coverage areas for information warfare system communication channels between base stations, vehicles and warfighters is a challenging problem. The channel may involve radio frequency interactions with hills, foliage, and buildings. The paths may involve long distances over hilly terrain or shorter distances involving interaction with urban building features. Many propagation paths may simultaneously involve hills, foliage, and urban areas. For example, a warfighter sheltered in a doorway in an urban area may need to communicate with a command station located in a rural forested area outside of the city. These mixed path links involving both urban (including indoor) features and rural (including foliage) terrain are beyond the capability of any existing physics-based propagation model. Currently available models are applicable to paths where both the transmitting and receiving antennas are located in an outdoor urban environment, or indoors, or in rural areas. Development of fast and reliable mixed-path models valid over a wide range of communication frequencies is important in order to provide channel characterizations for realistic situations. This development will by necessity bring together different types of models. Full wave models may be applied to predict the antenna pattern from an antenna on a vehicle or a warfighter crouched below a wall. Full wave models may also be used for propagation paths involving terrain or atmospheric effects. Parabolic equation models may also be applied for these situations. Ray-based models are needed for complex interactions with urban features and for indoor situations. All of these need to be combined in new ways in order to obtain accurate mixed-path radio propagation predictions.","PeriodicalId":435910,"journal":{"name":"IEEE Military Communications Conference, 2003. MILCOM 2003.","volume":"51 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":"121665763","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

On supporting distributed collaboration in sensor networks 传感器网络中支持分布式协作的研究

IEEE Military Communications Conference, 2003. MILCOM 2003. Pub Date : 2003-10-13 DOI: 10.1109/MILCOM.2003.1290206

G. Wang, W. Zhang, G. Cao, T. L. La Porta

引用次数: 112

An enhanced one-bit identity authentication protocol for access control in IEEE 802.11 IEEE 802.11中用于访问控制的增强的一位身份认证协议

IEEE Military Communications Conference, 2003. MILCOM 2003. Pub Date : 2003-10-13 DOI: 10.1109/MILCOM.2003.1290221

H. Wang, Aravind Velayutham

引用次数: 7

Using neural network in distributed management to identify control and management plane poison messages 利用神经网络在分布式管理中识别控制平面和管理平面的有毒消息

IEEE Military Communications Conference, 2003. MILCOM 2003. Pub Date : 2003-10-13 DOI: 10.1109/MILCOM.2003.1290146

Xiaojiang Du, M. Shayman, R. Skoog

引用次数: 0

A fundamental cross-layer approach to uplink resource allocation 一种基本的跨层上行资源分配方法

IEEE Military Communications Conference, 2003. MILCOM 2003. Pub Date : 2003-10-13 DOI: 10.1109/MILCOM.2003.1290189

E. Yeh, A. Cohen

{"title":"A fundamental cross-layer approach to uplink resource allocation","authors":"E. Yeh, A. Cohen","doi":"10.1109/MILCOM.2003.1290189","DOIUrl":"https://doi.org/10.1109/MILCOM.2003.1290189","url":null,"abstract":"The literature on multiaccess (uplink) communications has traditionally treated \"network-layer\" issues such as source burstiness and network delay apart from \"physical-layer\" issues such as channel modelling, coding, and detection. We establish a unified cross-layer framework for optimal resource allocation over multiaccess fading channels where packets arrive randomly to transmitters. Using optimal coding assumptions, we first show that the region of all stable arrival rates is the same as the information-theoretic capacity region of [D. Tse and S. Hanly, 1998]. Next, we show that a longest-queue-highest-possible-rate (LQHPR) allocation strategy stabilizes the multiaccess queueing system whenever stability is possible. Finally, we show that under symmetric conditions, the LQHPR policy also minimizes the average packet delay. Such a policy can be interpreted in the coding context as adaptive successive decoding. Since optimal coding assumptions are used, the throughput (delay) performance of the LQHPR policy provides a fundamental upper (lower) bound to the performance of all reliable multiaccess coding schemes. especially when the measurement noise is low.","PeriodicalId":435910,"journal":{"name":"IEEE Military Communications Conference, 2003. MILCOM 2003.","volume":"220 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":"122459171","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: 13

Construction of complex-valued simplex signature sets with constant chip magnitude 恒片幅复值单纯形签名集的构造

IEEE Military Communications Conference, 2003. MILCOM 2003. Pub Date : 2003-10-13 DOI: 10.1109/MILCOM.2003.1290369

P. Cotae

引用次数: 4

Sequential use of wireless sensors for target estimation and tracking 连续使用无线传感器进行目标估计和跟踪

IEEE Military Communications Conference, 2003. MILCOM 2003. Pub Date : 2003-10-13 DOI: 10.1109/MILCOM.2003.1290183

M. Liu

{"title":"Sequential use of wireless sensors for target estimation and tracking","authors":"M. Liu","doi":"10.1109/MILCOM.2003.1290183","DOIUrl":"https://doi.org/10.1109/MILCOM.2003.1290183","url":null,"abstract":"In this paper we discuss the use of sensors sequentially for the purpose of target estimation and tracking. Such problems are motivated by scenarios where many of the sensors are inactive under normal situations with only a few active sensors \"on guard\". Upon the detection of a stationary or moving object of interest by an active sensor, this sensor subsequently triggers/wakes up/activates the inactive/sleeping sensors sequentially to get more measurement readings of the object (e.g., location, speed, temperature). Each activation of a sensor and the sensing and communication that follow will incur a cost. This process terminates when the error of the estimate based on the sequence of observations is satisfactory (relative to its cost), or when the moving object is out of range, or when the time period of interest has elapsed, and so on. The questions we are interested in answering are when to stop, when to use a sensor and when not to, and what is the optimal sequence of sensors to use for a given objective function. In this paper we present a framework with which the above problems are formulated into optimal sequential decision problems with energy constraints. Optimal results can then be obtained either through numerical methods or analytical derivation. Our preliminary results show that at least for some instances of such a formulation we can obtain well structured solutions as well as properties of these solutions that describe the sequential selection of sensors.","PeriodicalId":435910,"journal":{"name":"IEEE Military Communications Conference, 2003. MILCOM 2003.","volume":"1174 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":"131442805","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

A decentralized approach to secure management of nodes in distributed sensor networks 分布式传感器网络中节点安全管理的分散方法

IEEE Military Communications Conference, 2003. MILCOM 2003. Pub Date : 2003-10-13 DOI: 10.1109/MILCOM.2003.1290168

J. Zachary

引用次数: 11