2007 41st Annual Conference on Information Sciences and Systems最新文献_第5页

Performance of Space-Time Coded Systems with Transmit Antenna Selection 具有发射天线选择的空时编码系统性能

2007 41st Annual Conference on Information Sciences and Systems Pub Date : 2007-03-14 DOI: 10.1109/CISS.2007.4298430

T. Gucluoglu, T. Duman

引用次数: 3

Detecting Information Flows: Improving Chaff Tolerance by Joint Detection 信息流检测:通过联合检测提高箔条容忍度

2007 41st Annual Conference on Information Sciences and Systems Pub Date : 2007-03-14 DOI: 10.1109/CISS.2007.4298272

T. He, L. Tong

引用次数: 16

Impact of the Number of users on Error Probabilities in Multiuser Diversity Systems 多用户分集系统中用户数量对错误概率的影响

2007 41st Annual Conference on Information Sciences and Systems Pub Date : 2007-03-14 DOI: 10.1109/CISS.2007.4298372

Y. Ko, C. Tepedelenlioğlu

引用次数: 2

Opportunistic MAC Protocols for Cognitive Radio Based Wireless Networks 基于认知无线电的无线网络中的机会MAC协议

2007 41st Annual Conference on Information Sciences and Systems Pub Date : 2007-03-14 DOI: 10.1109/CISS.2007.4298329

Hang Su, Xi Zhang

引用次数: 101

A Spectrally Efficient Frequency Hopping Scheme 一种频谱高效跳频方案

2007 41st Annual Conference on Information Sciences and Systems Pub Date : 2007-03-14 DOI: 10.1109/CISS.2007.4298298

Qi Ling, Tongtong Li

引用次数: 3

Ultra-Wideband Channel Measurement Characterization for Wireless Magnetic Resonance Imaging Applications 无线磁共振成像应用的超宽带信道测量特性

2007 41st Annual Conference on Information Sciences and Systems Pub Date : 2007-03-14 DOI: 10.1109/CISS.2007.4298287

N. Alsindi, D. Birru, Dong Wang

{"title":"Ultra-Wideband Channel Measurement Characterization for Wireless Magnetic Resonance Imaging Applications","authors":"N. Alsindi, D. Birru, Dong Wang","doi":"10.1109/CISS.2007.4298287","DOIUrl":"https://doi.org/10.1109/CISS.2007.4298287","url":null,"abstract":"The growing wireless technology is providing new potential for emerging applications such as wireless communication in medical systems. Wireless transfer of the magnetic resonance imaging (MRI) sensor data is a new field that will facilitate transfer of imaging data conventionally done through cables. Such application requires high-speed short-range connectivity. The recently emerging technology, ultra-wide band (UWB), is a promising choice for this application. While the conventional open-air UWB communication is well studied, the use of UWB in an MRI environment is not addressed. This paper provides results and analysis of a measurement campaign in makeshift MRI metallic barrel to provide an understanding of the characteristics of such unknown environment. The pathloss characteristic of MRI channel is analyzed and the results show that MRI UWB channels have much less pathloss compared with conventional UWB channels. This is caused by \"waveguide effect\". Moreover, the root mean square (RMS) delay analysis is presented. Different scenarios, such as empty MRI and loaded MRI were measured and compared. The results show that MRI channels have some unique properties and are different from previous proposed channel models, such as IEEE 802.15 3a CM channel models. These results can be used to conduct future UWB system design for MRI applications.","PeriodicalId":151241,"journal":{"name":"2007 41st Annual Conference on Information Sciences and Systems","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122697434","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

Channel-Adaptive Optimal OFDMA Scheduling 信道自适应最优OFDMA调度

2007 41st Annual Conference on Information Sciences and Systems Pub Date : 2007-03-14 DOI: 10.1109/CISS.2007.4298365

X. Wang, G. Giannakis, Yingqun Yu

引用次数: 17

Discrete-Time Dithering Technique for Designing Time-Varying Signal Adapted Filter Banks 时变信号自适应滤波器组设计中的离散时间抖动技术

2007 41st Annual Conference on Information Sciences and Systems Pub Date : 2007-03-14 DOI: 10.1109/CISS.2007.4298425

P. Vouras, T. Tran

引用次数: 1

Limited Feedback Precoder Design for Spatially Correlated MIMO Channels 空间相关MIMO信道的有限反馈预编码器设计

2007 41st Annual Conference on Information Sciences and Systems Pub Date : 2007-03-14 DOI: 10.1109/CISS.2007.4298283

V. Raghavan, A. Sayeed, V. Veeravalli

{"title":"Limited Feedback Precoder Design for Spatially Correlated MIMO Channels","authors":"V. Raghavan, A. Sayeed, V. Veeravalli","doi":"10.1109/CISS.2007.4298283","DOIUrl":"https://doi.org/10.1109/CISS.2007.4298283","url":null,"abstract":"It is well-known that perfect channel state information (CSI) at the transmitter and the receiver (CSIT/CSIR) can be used to decompose a multi-antenna channel into a bank of parallel channels. While perfect CSIR maybe a reasonable assumption for practical systems, perfect CSIT is generally difficult to achieve. Recent attention in communication systems design has thus shifted towards limited feedback schemes where partial CSI is fed back from the receiver to the transmitter. In this work, we consider a preceding scheme which excites a subset of the transmit dimensions with independent data. The main focus is on systematic quantized precoder designs that bridge the gap between statistical preceding and perfect CSIT preceding in spatially correlated channels. In this work, we propose an asymptotic perturbation theory-inspired codebook design obtained from a quantization of the local neighborhood around the statistically dominant preceding direction(s). This design is implemented in practice by maps that can rotate and shrink sets on the Grassmannian manifold. Numerical results show substantial gains can be achieved with the proposed design over statistical preceding.","PeriodicalId":151241,"journal":{"name":"2007 41st Annual Conference on Information Sciences and Systems","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121173794","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: 28

A Game-Theoretic Analysis of Decode-and-Forward Cooperation in Gaussian Channels 高斯信道中译码转发合作的博弈论分析

2007 41st Annual Conference on Information Sciences and Systems Pub Date : 2007-03-14 DOI: 10.1109/CISS.2007.4298316

Yingda Chen, S. Kishore

引用次数: 2