Báo cáo hóa học: "Research Article A Diversity Guarantee and SNR Performance for Unitary Limited Feedback MIMO Systems" ppt
Báo cáo hóa học: "Research Article A Diversity Guarantee and SNR Performance for Unitary Limited Feedback MIMO Systems" ppt
... 2008, Article ID 594928, 15 pagesdoi:10.1155/2008/594928Research Article A Diversity Guarantee and SNR Performance for Unitary Limited Feedback MIMO SystemsBishwarup Mondal and Robert W. Heath ... results showthat the approximation in (27) is reasonably accurate even atsmall values of N and provides a practical characterization of performance. 4.5. ObservationsTo better understand the result ... this analysis, we have assumed perfect channel knowl-edge at the receiver and considered an uncorrelated Rayleighfading channel. Performance analysis incorporating channelestimation errors and...
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Báo cáo hóa học: " Research Article A Diversity Guarantee and SNR Performance for Unitary Limited Feedback MIMO Systems" potx
... Diversity Guarantee and SNR Performance for Unitary Limited Feedback MIMO SystemsBishwarup Mondal and Robert W. Heath Jr.Department of Electrical and Computer Eng ineering, The University of Texas at ... precoding is thetransmit array gain which is also a ected due to precoderquantization. An analytical characterization of the loss in ar-ray gain due to quantization for single-stream beamformingin ... the chan-nel gain is obtained at low values of feedback rate(bits per channel realization) and increasing feedback further leads to insignificant gains. Our characteriza-tion also shows that increasing...
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Báo cáo hóa học: "Research Article A Two-Microphone Noise Reduction System for Cochlear Implant Users with Nearby " ppt
... filter was variedsystematically, and an ideal target signal detection algorithm performance was mimicked by allowing the filter adapt onlyin the absence of the target signal. Delay D3 was set ... wasconveniently available for measurements and its acousticproperties were reasonably close to that of an imaginaryaverage room found in an earlier study [10], and to thesimulated reverberant room ... systematic subjective evaluations arecomplex, time consuming, and may give equivocal resultseven for a substantial measurable benefit and if validatedquestionnaires are used [11, 17]. Although...
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Báo cáo hóa học: " Research Article A Simplified Constant Modulus Algorithm for Blind Recovery of MIMO QAM and PSK Signals: A Criterion with Convergence Analysis" ppt
... both real and imaginary parts as in CMA and MMA, only one dimension, the real or imaginary part,is considered in SCMA, which makes it very attractive for practical implementation especially when ... 1343–1348,1997.[16] C. B. Papadias and A. J. Paulraj, A constant modulus al-gorithm for multiuser signal separation in presence of delayspread using antenna arrays,” IEEE Signal Processing Letters,vol. ... Communications and Computer Sciences, vol. E83 -A, no. 8, pp. 1498–1512, 2000.[3] A. Cichocki and S I. Amari, Adaptive Blind Signal and ImageProcessing: Learning Algorithms and Applications,JohnWiley&...
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Báo cáo hóa học: " Research Article A New Bigram-PLSA Language Model for Speech Recognition" potx
... thebigram-PLSA models an unfair advantage by allowing themto adapt the model parameters to the test data. Nevertheless,we applied it to avoid overfitting.To have a valid comparison, the PLSA and ... in language modeling. Latent topic modelingapproaches such as Latent Semantic Analysis (LSA) [1,2], Probabilistic Latent Semantic Analysis (PLSA) [3], and Latent Dirichlet Allocation (LDA) [4] ... Statistical language modelsare obtained using different approaches depending on theresources and tasks requirements. Extracting n-gram statis-tics is a prevalent approach for statistical language...
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Báo cáo hóa học: " Research Article A Content-Motion-Aware Motion Estimation for Quality-Stationary Video Coding Meng-Chun Lin and Lan-Rong Dung" docx
... subsample subsample subsample subsample subsample subsample subsample (70%)ratio ratio ratio ratio ratio ratio ratio ratioPSNRY ΔPSNRY ΔPSNRY ΔPSNRY ΔPSNRY ΔPSNRY ΔPSNRY ΔPSNRY ΔPSNRYDancer ... subsample approach is feasible and scalable for either hardware or software implementation.The proposed approach is not limited for FSBM, but valid for all kinds of FBMAs. The proposed approach ... Tham, S. Ranganath, M. Ranganath, and A. A. Kassim, A novel unrestricted center-biased diamond search algorithm for block motion estimation,” IEEE Transactions on Circuits and Systems for Video...
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Báo cáo hóa học: " Research Article A Novel Biologically Inspired Attention Mechanism for a Social Robot" ppt
... cooperatewith people as capable partners, that are able to learnfrom natural human instruction and that are intuitive and engaging for people to interact with, but that are also able tosimultaneously ... have implemented two basic behaviorsin this stage: a visual natural landmark detector and a human gesture recognition behavior. These behaviors arethe responsible for provide natural landmarks ... Mechanism for a Social RobotAntonio Jes´us Palomino, Rebeca Marfil, Juan Pedro Bandera, and Antonio BanderaGrupo ISIS, Departamento de Tecnolog´ a Electr´onica, E.T.S.I. Telecomunicaci´on,...
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Báo cáo hóa học: " Research Article A Speed-Adaptive Media Encryption Scheme for Real-Time Recording and Playback System" pot
... Speed-Adaptive Media-DataEncryption (SAME)Statistical char acteristics of compressed audio/video dataare dramatically different from the ones of text data,because the variable-length codes and other ... level. Based on thisstatistical characteristic of media data, we extend the idea ofVEA algorithm to a new method that uses traditional blockcipher to encry pt a part of data (part I), and uses ... be increased by adding theparameter l.5. Performance Analyses5.1. Theoretical Security Analysis Based on Shannon Theory.The following analysis is focused on the basic SAMEalgorithm, and the...
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Báo cáo hóa học: " Research Article A Fast Network Configuration Algorithm for TDMA Wireless Sensor Networks" pot
... slots before issuing a DSC packet. Once again, itTable 1: Relevant simulation parameters.CSMA/CA PHY layer and 2C-WSNParameter Value Parameter ValuemacMinBE 3 Radiodatarate250 kbpsmacMaxBE ... complete a father -and- child association, AAO. Recall that this operationconsists of exchanging four packets: DSC, DLY, ACKS ,and ACKF. Several trials were conducted placing the nodesat a distance ... basically equals thetime it takes to transmit a packet and receive a feedback message from a central station. The feedback message isbinary, that is, it is a collision message C when a collisionwas...
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Báo cáo hóa học: " Research Article A Family of Key Agreement Mechanisms for Mission Critical Communications for Secure Mobile Ad Hoc and Wireless Mesh Internetworking" pdf
... Wireless Systems,Barcelona, Spain, May 2010.[20] I. Askoxylakis, K. Markantonakis, T. Tryfonas, J. May, and A. Traganitis, A face centered cubic key agreement mechanism for mobile ad hoc networks,” ... following: there aretwo parties A, B that share a password P.Bothpartiesuse a suitable symmetric cryptosystem but entity A has also theability to create a random asymmetric key pair, (e A , d A ).During ... provide a broad range of mission critical applications. While offering many advantages, such as flexibilit y,easy of deployment and low cost, MANETs and mesh networks face important security and resilience...
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Từ khóa: Nghiên cứu sự biến đổi một số cytokin ở bệnh nhân xơ cứng bì hệ thốngchuyên đề điện xoay chiều theo dạngGiáo án Sinh học 11 bài 13: Thực hành phát hiện diệp lục và carôtenôitGiáo án Sinh học 11 bài 13: Thực hành phát hiện diệp lục và carôtenôitGiáo án Sinh học 11 bài 13: Thực hành phát hiện diệp lục và carôtenôitĐỒ ÁN NGHIÊN CỨU CÔNG NGHỆ KẾT NỐI VÔ TUYẾN CỰ LY XA, CÔNG SUẤT THẤP LPWANPhát triển du lịch bền vững trên cơ sở bảo vệ môi trường tự nhiên vịnh hạ longPhát hiện xâm nhập dựa trên thuật toán k meansThiết kế và chế tạo mô hình biến tần (inverter) cho máy điều hòa không khíSở hữu ruộng đất và kinh tế nông nghiệp châu ôn (lạng sơn) nửa đầu thế kỷ XIXKiểm sát việc giải quyết tố giác, tin báo về tội phạm và kiến nghị khởi tố theo pháp luật tố tụng hình sự Việt Nam từ thực tiễn tỉnh Bình Định (Luận văn thạc sĩ)Quản lý nợ xấu tại Agribank chi nhánh huyện Phù Yên, tỉnh Sơn La (Luận văn thạc sĩ)Giáo án Sinh học 11 bài 14: Thực hành phát hiện hô hấp ở thực vậtGiáo án Sinh học 11 bài 14: Thực hành phát hiện hô hấp ở thực vậtGiáo án Sinh học 11 bài 14: Thực hành phát hiện hô hấp ở thực vậtGiáo án Sinh học 11 bài 14: Thực hành phát hiện hô hấp ở thực vậtTrách nhiệm của người sử dụng lao động đối với lao động nữ theo pháp luật lao động Việt Nam từ thực tiễn các khu công nghiệp tại thành phố Hồ Chí Minh (Luận văn thạc sĩ)Chiến lược marketing tại ngân hàng Agribank chi nhánh Sài Gòn từ 2013-2015HIỆU QUẢ CỦA MÔ HÌNH XỬ LÝ BÙN HOẠT TÍNH BẰNG KIỀMMÔN TRUYỀN THÔNG MARKETING TÍCH HỢP