1,253 resources related to Time-varying channels
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ICASSP 2015 - 2015 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)
The ICASSP meeting is the world's largest and most comprehensive technical conference focused on signal processing and its applications. The conference will feature world-class speakers, tutorials, exhibits, and over 50 lecture and poster sessions.
OCEANS 2015 - MTS/IEEE Washington
The Marine Technology Scociety and the Oceanic Engineering Society of the IEEE cosponor a joint annual conference and exposition on ocean science, engineering, and policy. The OCEANS conference covers four days. One day for tutorials and three for approx. 450 technical papers and 150-200 exhibits.
The purpose of these workshops is to bring together individuals from the IEEE and elsewhere with common interests in digital signal processing resarch and signal processing education. The combined workshop will include 5-6 plenary talks and approximately 150 contributed papers.
Broadcast technology, including devices, equipment, techniques, and systems related to broadcast technology, including the production, distribution, transmission, and propagation aspects.
Telephone, telegraphy, facsimile, and point-to-point television, by electromagnetic propagation, including radio; wire; aerial, underground, coaxial, and submarine cables; waveguides, communication satellites, and lasers; in marine, aeronautical, space and fixed station services; repeaters, radio relaying, signal storage, and regeneration; telecommunication error detection and correction; multiplexing and carrier techniques; communication switching systems; data communications; and communication theory. In addition to the above, ...
The fundamental nature of the communication process; storage, transmission and utilization of information; coding and decoding of digital and analog communication transmissions; study of random interference and information-bearing signals; and the development of information-theoretic techniques in diverse areas, including data communication and recording systems, communication networks, cryptography, detection systems, pattern recognition, learning, and automata.
All telecommunications, including telephone, telegraphy, facsimile, and point-to-point television, by electromagnetic propagation, including radio; wire; aerial, underground, coaxial, and submarine cables; waveguides, communication satellites, and lasers; in marine, aeronautical, space, and fixed station services; repeaters, radio relaying, signal storage, and regeneration; telecommunication error detection and correction; multiplexing and carrier techniques; communication switching systems; data communications; communication theory; and wireless communications.
Atzori, L.; Giusto, D.D.; Murroni, M. Broadcasting, IEEE Transactions on, 2002
Fractal modulation schemes have been under investigation for signal transmission over time-varying channels because of their advantages in data transmission at different frequency bands. This also allows efficient reception when channel conditions are varying by selecting the optimal frequency/time resolution based on the current channel condition. We present a performance analysis of fractal modulation transmission over Rician fast- fading channels ...
Guoqiang Gong; Wancheng Ge Knowledge Acquisition and Modeling Workshop, 2008. KAM Workshop 2008. IEEE International Symposium on, 2008
By analyzing the characteristic of fast fading channels, a Kalman equalization method of directly estimating channel values in time domain is proposed based on time domain synchronization orthogonal frequency division multiplexing (TDS-OFDM) system models. The proposed algorithm is one-dimensional Kalman method and has low complexity. In addition, for tracking the time-varying channel, a minimum mean-squared error (MMSE) equalizer in time ...
Tang Yan-bo; Ge Wan-cheng Knowledge Acquisition and Modeling Workshop, 2008. KAM Workshop 2008. IEEE International Symposium on, 2008
Channel estimation based on comb-type pilot pattern has a good performance in frequency-selective channels with the help of MMSE algorithm. But MMSE is too complex for practical implementation and its performance deteriorates rapidly in time-varying channels due to extremely Doppler effects. In this paper, we present an optimized Kalman filter algorithm, which performs iteration operations within separate symbols. Optimized pilot ...
Sridhara, V.; Hwee-Chul Shin; Bohacek, S. Modeling and Optimization in Mobile, Ad Hoc and Wireless Networks, 2006 4th International Symposium on, 2006
Testbeds are projected to be the next generation of mechanisms for protocol verification and performance validation of wireless networks. One important objective of these testbeds is to depict the propagation mechanism accurately. This paper presents measurements and models of propagation between stationary transmitters and receivers in a dynamic environment. These measurements indicate that in some environments, the signal strength displays ...
Peng Wan; Zhimin Du; Weiling Wu Spread Spectrum Techniques and Applications, 2004 IEEE Eighth International Symposium on, 2004
The recursive constrained constant modulus algorithm (R-CCMA) with modulus parameter correction has fast convergence rate and good steady-state performance, and is robust to ill-conditioned initialization of weight vector and modulus parameter. These distinctive properties make it very suitable for time-varying channel applications. This paper presents a novel concatenated space-time multiuser detector based on it for uplink reception in a DS-CDMA ...
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