Browsing by Author "Das, Rajib Lochan"
Now showing items 1-9 of 9
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Channel Estimation for Orthogonal Time Frequency Space Modulation using Recursive Least Squares
Singh, Bhavesh Amar (2021)For its capacity to provide high data rates to a wide number of users, 4G wireless communications had a huge success in the previous decade. With the Internet of Things (IoT) and high mobility scenarios such as vehicle-to-vehicle ... -
Compressive Sensing based Channel Estimation for Orthogonal Time Frequency Space (OTFS)
M V, S Chandra Kishan (2021)High speed mobility is a challenging case in wireless communication where orthogonal frequency division multiplexing (OFDM) performance degrades due tohigh Doppler effect. A new modulation scheme orthogonal time frequency ... -
Designing an optimized linear adaptive filtering algorithm
Trivedi, Vishwas (Dhirubhai Ambani Institute of Information and Communication Technology, 2018)For any system, sparse or dispersive, z2 proportionate algorithm of Proportionate Normalized Least Mean Square (PtNLMS) class, gives the best convergence rate compare to any other weiner filter based iterative algorithms. ... -
FPGA implementation of an improved proportionate normalized least mean square (IPNLMS) algorithm
Dubey, Deepankar (Dhirubhai Ambani Institute of Information and Communication Technology, 2018)In digital signal processing, estimation of an unknown signal is an important task,and in this context, different type of adaptive filters has been proposed to identifythese systems for on-line applications. Adaptive filters ... -
FPGA Implementation of an Improved Proportionate Normalized Least Mean Square Algorithm
Kadiya, Bhaumik (Dhirubhai Ambani Institute of Information and Communication Technology, 2017)"Adaptive algorithms find various applications in signal processing to estimate unknown signal statistics. Using the error signal as feedback, the filter’s efficients are updated and equals the unknown system coefficients. ... -
Gradient based Adaptive Channel Estimation for Orthogonal Time Frequency Space (OTFS)
Upalekar, Divya Subhash (2021)The next generation wireless system with high mobility requirements brings the challenge to mitigate the effect of a time-varying channel. Conventional multicarrier systems like Orthogonal frequency division multiplexing ... -
Identification of Block-Sparse Systems using Adaptive Filtering Algorithms
Sonia (Dhirubhai Ambani Institute of Information and Communication Technology, 2022)An adaptive filter is a system with a linear filter that has a transfer function controlled byvariable parameters and a means to adjust those parameters according to an optimizationalgorithm. Adaptive filters are used for ... -
Non-homogeneous Dehazing of Images by Attention Mechanism in Deep Framework
Dhedhi, Akash T. (Dhirubhai Ambani Institute of Information and Communication Technology, 2022)The availability of dehazing datasets has enabled various deep learning techniques to perform effectively on hazy images. Most of the developed frameworks focus on removing homogeneous haze. However, homogeneous centric ... -
Single Image De-raining Using Convolutional Neural Network
Gajera, Pinak (Dhirubhai Ambani Institute of Information and Communication Technology, 2023)Rain streaks vary in size, quantity, and direction, making removing them from individualimages difficult. Recent advancements in deep learning, especially thoseusing CNN-based techniques, have shown promising results in ...