Search Results - "Ranganathan, Raghuram"

Cognitive Radio for Smart Grid : Theory, Algorithms, and Security by Ranganathan, Raghuram, Qiu, Robert C., Hu, Zhen, Hou, Shujie, Pazos-Revilla, Marbin, Zheng, Gang, Chen, Zhe, Guo, Nan

“…Recently, cognitive radio and smart grid are two areas which have received considerable research impetus. Cognitive radios are intelligent software defined…”
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Complex Adaptive ICA Employing the Conjugate Gradient Technique for Signal Separation in Time-Varying Flat Fading Channels by Mikhael, Wasfy B., Ranganathan, Raghuram, Yang, Thomas

“…The conjugate gradient method is a prominent technique for solving systems of linear equations and unconstrained optimization problems, including adaptive…”
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Cognitive Radio Network for the Smart Grid: Experimental System Architecture, Control Algorithms, Security, and Microgrid Testbed by Qiu, Robert Caiming, Zhen Hu, Zhe Chen, Nan Guo, Ranganathan, Raghuram, Shujie Hou, Gang Zheng

“…This paper systematically investigates the novel idea of applying the next generation wireless technology, cognitive radio network, for the smart grid. In…”
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Adaptive sun tracking algorithm for incident energy maximization and efficiency improvement of PV panels by Ranganathan, Raghuram, Mikhael, Wasfy, Kutkut, Nasser, Batarseh, Issa

“…In recent times, sun tracking systems are being increasingly employed to enhance the efficiency of photovoltaic panels by constantly tracking the elevation and…”
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Complex Adaptive LMS Algorithm Employing the Conjugate Gradient Principle for Channel Estimation and Equalization by Liu, Ying, Ranganathan, Raghuram, Hunter, Matthew T., Mikhael, Wasfy B.

“…The Complex Block Least Mean Square (LMS) technique is widely used in adaptive filtering applications because of its simplicity and efficiency from a…”
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Complex adaptive FIR digital filtering algorithm with time-varying independent convergence factors by Mikhael, Wasfy B., Ranganathan, Raghuram

“…The Complex Least Mean Square (Complex LMS) algorithm suffers from slow convergence and dependence on the choice of the convergence factor. In this paper, a…”
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A comparative study of complex gradient and fixed-point ICA algorithms for interference suppression in static and dynamic channels by Ranganathan, Raghuram, Mikhael, Wasfy B.

“…Separation of complex signals using independent component analysis (ICA) is an area of extensive research. Several gradient and fixed-point complex ICA…”
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Novel complex adaptive signal processing techniques employing optimally derived time-varying convergence factors with applications in digital signal processing and wireless communications by Ranganathan, Raghuram

“…In digital signal processing in general, and wireless communications in particular, the increased usage of complex signal representations, and spectrally…”
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Intercarrier interference mitigation and multi-user detection employing adaptive ICA for MIMO-OFDM systems in time variant channels by Ranganathan, R., Yang, T., Mikhael, W.

“…Orthogonal Frequency Division Multiplexing (OFDM) is a widely applied scheme in modern wireless communication systems that effectively operate in frequency…”
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Complex FIR block adaptive digital filtering algorithm with independent adaptation of real and imaginary filter parameters by Mikhael, W.B., Ranganathan, R.

“…Complex signal representations are being frequently employed in various adaptive filtering applications such as wireless communications, beamforming, etc. In…”
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A Novel Interference Supression Technique employing Complex Adaptive ICA for Time-Varying Channels in Diversity Wireless QAM Receivers by Ranganathan, Raghuram, Mikhael, Wasfy B

“…This paper presents a novel Complex adaptive ICA algorithm with individual adaptation of parameters. The algorithm employs optimal individual convergence…”
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Optimal block adaptive I/Q mismatch compensation based on circularity by Ying Liu, Ranganathan, R, Hunter, M T, Mikhael, W B, Yang, T T

“…Wireless systems frequently employ I/Q modulation techniques to achieve spectral efficiency for high data rate applications. However, the main drawback of I/Q…”
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Novel complex adaptive signal processing techniques employing optimally derived time-varying convergence factors with applications in digital signal processing and wireless communications by Ranganathan, Raghuram

“…In digital signal processing in general, and wireless communications in particular, the increased usage of complex signal representations, and spectrally…”
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Conjugate gradient based Complex Block LMS employing time-varying optimally derived stepsizes by Ying Liu, Hunter, M.T., Ranganathan, R., Mikhael, W.B.

“…The complex block least mean square (LMS) algorithm has been widely used in various adaptive filtering applications. However, the main drawback of the complex…”
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Separation of complex signals with known source distributions in time-varying channels using optimum complex block adaptive ICA by Ranganathan, R., Yang, T.T., Mikhael, W.B.

“…This paper presents a novel realization of the complex block adaptive independent component analysis algorithm. The algorithm optimally updates the real and…”
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An Optimum Block Adaptive ICA Algorithm with Individual Adaptation for Wireless QAM Receivers in Dynamic Environments by Ranganathan, R., Mikhael, W.B., Yang, T.T.

“…This paper applies an optimum block adaptive ICA algorithm with individual adaptation of the mixing matrix parameters (OBAI-ICA) to wireless receivers…”
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Blind recovery of smart meter wireless transmissions employing Independent Component Analysis in the presence of strong wideband interference by Ranganathan, R., Qiu, R., Shujie Hou, Husheng Li

“…The technique of Independent Component Analysis (ICA) has been applied in various statistical signal processing applications for Blind Source Separation (BSS),…”
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A novel digital beamforming technique based on homogeneous adaptation employing time-varying convergence factors by Ranganathan, R., Mikhael, W.

“…In this paper, a novel complex homogeneous adaptation least mean square algorithm (complex HA-LMS) for digital beamforming is presented. The proposed technique…”
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Complex FIR block adaptive algorithm employing optimal time-varying convergence factors by Mikhael, W.B., Ranganathan, R.

“…The Complex Least Mean Square algorithm (Complex LMS) has been widely used in various adaptive filtering applications, e.g. in the wireless communications and…”
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Towards a large-scale cognitive radio network: Testbed, intensive computing, frequency agility and security by Zhe Chen, Changchun Zhang, Feng Lin, Jingzhi Yu, Xia Li, Yu Song, Ranganathan, R., Nan Guo, Qiu, R. C.

“…Cognitive radio (CR) is a promising technique for improving the efficiency of utilizing the precious radio spectrum. A cognitive radio network (CRN) testbed…”
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