2009 3rd International Conference on Signal Processing and Communication Systems最新文献_第2页

On the use of TCH sequences for synchronization, channel and noise estimation 利用TCH序列进行同步、信道和噪声估计

2009 3rd International Conference on Signal Processing and Communication Systems Pub Date : 2009-10-30 DOI: 10.1109/ICSPCS.2009.5306425

J. C. Silva, N. Souto, R. Dinis, P. Montezuma

引用次数: 1

Energy-efficient, flow-specific medium access using preamble sampling 节能，流量特定的介质访问使用前置采样

2009 3rd International Conference on Signal Processing and Communication Systems Pub Date : 2009-10-30 DOI: 10.1109/ICSPCS.2009.5306415

T. O. Walker, M. Tummala, J. McEachen

引用次数: 2

A simplified bi-state channel model for radio propagation in the Land mobile Satellite System 陆地移动卫星系统无线电传播的简化双状态信道模型

2009 3rd International Conference on Signal Processing and Communication Systems Pub Date : 2009-10-30 DOI: 10.1109/ICSPCS.2009.5306373

Raffat Khan, K. Kiasaleh

引用次数: 1

An invisible hyperlink marker 一个不可见的超链接标记

2009 3rd International Conference on Signal Processing and Communication Systems Pub Date : 2009-10-30 DOI: 10.1109/ICSPCS.2009.5306395

Koichi Kamijo, M. Minami, H. Morikawa

引用次数: 0

Power efficiency of cooperative communication in wireless sensor networks 无线传感器网络中协同通信的功率效率

2009 3rd International Conference on Signal Processing and Communication Systems Pub Date : 2009-10-30 DOI: 10.1109/ICSPCS.2009.5306417

Sunita Gupta, M. Vuran, M. C. Gursoy

引用次数: 10

Performance of dual-branch diversity receiver based SR-ARQ in Rayleigh fading channel 瑞利衰落信道下基于双支路分集接收机的SR-ARQ性能研究

2009 3rd International Conference on Signal Processing and Communication Systems Pub Date : 2009-10-30 DOI: 10.1109/ICSPCS.2009.5306398

G. Al-Suhail, T. Lamahewa, R. Kennedy

引用次数: 2

Power consumption and performance analysis of object tracking and event detection with wireless embedded smart cameras 无线嵌入式智能摄像机目标跟踪与事件检测的功耗与性能分析

2009 3rd International Conference on Signal Processing and Communication Systems Pub Date : 2009-10-30 DOI: 10.1109/ICSPCS.2009.5306375

Mauricio Casares, Alvaro Pinto, Youlu Wang, Senem Velipasalar

{"title":"Power consumption and performance analysis of object tracking and event detection with wireless embedded smart cameras","authors":"Mauricio Casares, Alvaro Pinto, Youlu Wang, Senem Velipasalar","doi":"10.1109/ICSPCS.2009.5306375","DOIUrl":"https://doi.org/10.1109/ICSPCS.2009.5306375","url":null,"abstract":"An embedded smart camera is a stand-alone unit that not only captures images, but also includes a processor, memory and communication interface. With battery-powered and embedded smart cameras, it has become viable to install many spatially-distributed cameras interconnected by wireless links. Not requiring to have access to electrical outlets and have wired links increase system flexibility. However, wireless and battery-powered smart-camera networks introduce many additional challenges since they have very limited resources, such as power, memory and bandwidth. The algorithms running on the camera boards should be lightweight and efficient. In addition, the frequency of communication between camera nodes, and the content of the message packets should be carefully designed, since communication consumes power. In this paper, we present a wireless embedded smart-camera system that performs peer-to-peer object tracking and event detection. We analyze the power consumption and performance of this system during different parts of the algorithm execution and for different message exchanges between camera nodes. We also present a graph of the energy consumption for different tasks performed in a camera's processor. The number of instructions are also presented. The results demonstrate the importance of the careful choice of when and what data to transfer between cameras, and also the necessity of having lightweight algorithms in these resource-constrained systems.","PeriodicalId":356711,"journal":{"name":"2009 3rd International Conference on Signal Processing and Communication Systems","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121418787","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: 9

Blind motion-blur parameter estimation using edge detectors 基于边缘检测器的盲运动模糊参数估计

2009 3rd International Conference on Signal Processing and Communication Systems Pub Date : 2009-10-30 DOI: 10.1109/ICSPCS.2009.5306409

Robert Grou-Szabo, T. Shibata

引用次数: 2

Line coded modulation 线路编码调制

2009 3rd International Conference on Signal Processing and Communication Systems Pub Date : 2009-10-30 DOI: 10.1109/ICSPCS.2009.5306403

Bahman R. Alyaei, A. Glass

引用次数: 2

Novel MMSE precoder and decoder designs subject to per-antenna power constraint for uplink multiuser MIMO systems 基于天线功率约束的MMSE预编解码器设计

2009 3rd International Conference on Signal Processing and Communication Systems Pub Date : 2009-10-30 DOI: 10.1109/ICSPCS.2009.5306440

I. Lu, Jialing Li, E. Lu

{"title":"Novel MMSE precoder and decoder designs subject to per-antenna power constraint for uplink multiuser MIMO systems","authors":"I. Lu, Jialing Li, E. Lu","doi":"10.1109/ICSPCS.2009.5306440","DOIUrl":"https://doi.org/10.1109/ICSPCS.2009.5306440","url":null,"abstract":"Two complementary numerical approaches, the generalized iterative approach (GIA) and the transmit covariance optimization approach (TCOA) are proposed for jointly designing the minimum mean square error (MMSE) precoders and decoders in uplink multiuser multiple-input-multiple-output (MIMO) systems with a per-antenna power constraint. The TCOA always give optimum solution but works only when the source covariance matrices are projection matrices multiplied by the same constant and the rank constraint on the precoders is relaxed. On the other hand, the GIA does not have these restrictions. Furthermore, it is able to deal with arbitrary source covariances and allows arbitrary numbers of data streams. However, under these more general conditions, the GIA results are only guaranteed to be locally optimum. Regarding computational efficiency, the TCOA is more efficient at high transmission power and the GIA is more efficient at low transmission power when both approaches are applicable. Furthermore, the GIA and the TCOA are equivalent and both are optimum if the transmit covariance matrices obtained from the MMSE design are full rank. Numerical results show that the MSE and BER performances of the two approaches with the more practical per-antenna power constraint are very similar to those with the less practical per-user power constraint.","PeriodicalId":356711,"journal":{"name":"2009 3rd International Conference on Signal Processing and Communication Systems","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125045802","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: 12