2008 42nd Asilomar Conference on Signals, Systems and Computers最新文献_第7页

Implementing indoor positioning system via ZigBee devices 通过ZigBee设备实现室内定位系统

2008 42nd Asilomar Conference on Signals, Systems and Computers Pub Date : 2008-10-01 DOI: 10.1109/ACSSC.2008.5074752

Yao Zhao, Liang Dong, Jiangchun Wang, Bo Hu, Yuzhuo Fu

引用次数: 35

Joint optimization of transceivers with decision feedback and bit loading 具有决策反馈和位加载的收发器联合优化

2008 42nd Asilomar Conference on Signals, Systems and Computers Pub Date : 2008-10-01 DOI: 10.1109/ACSSC.2008.5074630

Ching-Chih Weng, Chun-Yang Chen, P. Vaidyanathan

{"title":"Joint optimization of transceivers with decision feedback and bit loading","authors":"Ching-Chih Weng, Chun-Yang Chen, P. Vaidyanathan","doi":"10.1109/ACSSC.2008.5074630","DOIUrl":"https://doi.org/10.1109/ACSSC.2008.5074630","url":null,"abstract":"The transceiver optimization problem for MIMO channels has been considered in the past with linear receivers as well as with decision feedback (DFE) receivers. Joint optimization of bit allocation, precoder, and equalizer has in the past been considered only for the linear transceiver (transceiver with linear precoder and linear equalizer). It has also been observed that the use of DFE even without bit allocation in general results in better performance that linear transceivers with bit allocation. This paper provides a general study of this for transceivers with the zero-forcing constraint. It is formally shown that when the bit allocation, precoder, and equalizer are jointly optimized, linear transceivers and transceivers with DFE have identical performance in the sense that transmitted power is identical for a given bit rate and error probability. The developments of this paper are based on the generalized triangular decomposition (GTD) recently introduced by Jiang, Li, and Hager. It will be shown that a broad class of GTD-based systems solve the optimal DFE problem with bit allocation. The special case of a linear transceiver with optimum bit allocation will emerge as one of the many solutions.","PeriodicalId":416114,"journal":{"name":"2008 42nd Asilomar Conference on Signals, Systems and Computers","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133438848","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: 4

An improved WSQ fingerprint image compression algorithm 改进的WSQ指纹图像压缩算法

2008 42nd Asilomar Conference on Signals, Systems and Computers Pub Date : 2008-10-01 DOI: 10.1109/ACSSC.2008.5074621

Jinshan Tang, Xiaoming Liu

引用次数: 4

Target localization accuracy and multiple target localization: Tradeoff in MIMO radars 目标定位精度与多目标定位:MIMO雷达中的权衡

2008 42nd Asilomar Conference on Signals, Systems and Computers Pub Date : 2008-10-01 DOI: 10.1109/ACSSC.2008.5074479

H. Godrich, A. Haimovich, Rick S. Blum

{"title":"Target localization accuracy and multiple target localization: Tradeoff in MIMO radars","authors":"H. Godrich, A. Haimovich, Rick S. Blum","doi":"10.1109/ACSSC.2008.5074479","DOIUrl":"https://doi.org/10.1109/ACSSC.2008.5074479","url":null,"abstract":"This paper undertakes the study of localization performance of multiple targets in coherent MIMO radar systems with widely spread elements. MIMO radar systems with coherent processing and a single target were shown to benefit from a coherency and spatial advantages. The first is proportional to the ratio of the signal carrier frequency to the effective bandwidth, while the latter provides a gain proportional to the product of the number of transmitting and receiving sensors. In the current study, the model in extended to the estimation accuracy of multiple targets. The Cramer-Rao lower bound (CRLB) for the multiple targets localization problem is derived and analyzed. The localization is shown to benefit from coherency advantage. The tradeoff between target localization accuracy and the number of targets that can be localized is shown to be incorporated in the spatial advantage term. An increase in the number of targets to be localized exposes the system to increased mutual interferences. This tradeoff depends on the geometric footprint of both the sensors and the targets, and the relative positions of the two. Numerical analysis of some special cases offers an insight to the mutual relation between a given deployment of radars and targets and the spatial advantage it presents.","PeriodicalId":416114,"journal":{"name":"2008 42nd Asilomar Conference on Signals, Systems and Computers","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133770633","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: 11

Multiple descriptions with codebook reuse 具有代码本重用的多个描述

2008 42nd Asilomar Conference on Signals, Systems and Computers Pub Date : 2008-10-01 DOI: 10.1109/ACSSC.2008.5074495

Young-Han Kim

引用次数: 1

Distributed linear parameter estimation in sensor networks: Convergence properties 传感器网络中的分布式线性参数估计:收敛性

2008 42nd Asilomar Conference on Signals, Systems and Computers Pub Date : 2008-10-01 DOI: 10.1109/ACSSC.2008.5074638

S. Kar, J.M.F. Moura

引用次数: 14

On separation performance enhancement in convolutive blind source separation 卷积盲源分离中分离性能的提高

2008 42nd Asilomar Conference on Signals, Systems and Computers Pub Date : 2008-10-01 DOI: 10.1109/ACSSC.2008.5074719

Radoslaw Mazur, A. Mertins

引用次数: 2

Multiple phase decoder for MIMO systems 用于MIMO系统的多相解码器

2008 42nd Asilomar Conference on Signals, Systems and Computers Pub Date : 2008-10-01 DOI: 10.1109/ACSSC.2008.5074728

Zhi Quan, Y. Zakharov, Junruo Zhang

引用次数: 5

Throughput delay tradeoff for wireless multicast using hybrid-ARQ protocols 使用混合arq协议的无线组播吞吐量延迟权衡

2008 42nd Asilomar Conference on Signals, Systems and Computers Pub Date : 2008-10-01 DOI: 10.1109/ACSSC.2008.5074657

Jianqi Wang, S. Park, D. Love, M. Zoltowski

引用次数: 8

Session TP5a: Integrated algorithm and architecture implementation 会话TP5a:集成算法和架构实现

2008 42nd Asilomar Conference on Signals, Systems and Computers Pub Date : 2008-10-01 DOI: 10.1109/ACSSC.2008.5074673

K. Parhi

引用次数: 0