Coherent detection of turbo-coded OFDM signals transmitted through frequency selective Rayleigh fading channels with receiver diversity and increased throughput
K Vasudevan - Wireless Personal Communications, 2015 - Springer
In this work, we discuss techniques for coherently detecting turbo coded orthogonal
frequency division multiplexed (OFDM) signals, transmitted through frequency selective …
frequency division multiplexed (OFDM) signals, transmitted through frequency selective …
Data detection in single user massive MIMO using re-transmissions
K Vasudevan, K Madhu, S Singh - arXiv preprint arXiv:1811.11369, 2018 - arxiv.org
Single user massive multiple input multiple output (MIMO) can be used to increase the
spectral efficiency, since the data is transmitted simultaneously from a large number of …
spectral efficiency, since the data is transmitted simultaneously from a large number of …
Near capacity signaling over fading channels using coherent turbo coded OFDM and massive MIMO
K Vasudevan - arXiv preprint arXiv:1711.10104, 2017 - arxiv.org
The minimum average signal-to-noise ratio (SNR) per bit required for error-free transmission
over a fading channel is derived, and is shown to be equal to that of the additive white …
over a fading channel is derived, and is shown to be equal to that of the additive white …
Low-power SDR design on an FPGA for intersatellite communications
Small satellite systems make space missions for communication, navigation, and scientific
research more realizable and diversified. Small satellites flying in large cluster or …
research more realizable and diversified. Small satellites flying in large cluster or …
[PDF][PDF] Faster acquisition technique for software-defined GPS receivers
Acquisition is a most important process and a challenge task for identifying visible satellites,
coarse values of carrier frequency, and code phase of the satellite signals in designing …
coarse values of carrier frequency, and code phase of the satellite signals in designing …
[PDF][PDF] Coherent turbo coded MIMO OFDM
K Vasudevan - ICWMC 2016, 2016 - academia.edu
The minimum average signal-to-noise ratio (SNR) per bit required for error-free transmission
over a fading channel is derived, and is shown to be equal to that of the additive white …
over a fading channel is derived, and is shown to be equal to that of the additive white …
Amplitude prediction from uplink to downlink CSI against receiver distortion in FDD systems
C Qing, Z Wang, Q Ye, W Liu, L He - Physical Communication, 2023 - Elsevier
In frequency division duplex (FDD) massive multiple-input multiple-output (mMIMO) systems,
the reciprocity mismatch caused by receiver distortion seriously degrades the amplitude …
the reciprocity mismatch caused by receiver distortion seriously degrades the amplitude …
Preamble-based timing synchronization for OFDM systems
UC Samal, K Vasudevan - 2013 3rd IEEE International …, 2013 - ieeexplore.ieee.org
In this paper data aided (DA) timing synchronization scheme for orthogonal frequency
division multiplexing (OFDM) system is proposed. It works in time domain and the timing …
division multiplexing (OFDM) system is proposed. It works in time domain and the timing …
Enhanced data‐aided frequency estimation by collaboration in a distributed receiver
In this paper, a communication system with digital burst‐mode transmission and distributed
reception in the presence of carrier frequency offset and Additive White Gaussian Noise …
reception in the presence of carrier frequency offset and Additive White Gaussian Noise …
Bandwidth efficient turbo coded OFDM systems
UC Samal, K Vasudevan - 2013 13th International Conference …, 2013 - ieeexplore.ieee.org
In this paper, bandwidth efficient turbo codes, commonly known as turbo trellis coded
modulation (TTCM) is used in orthogonal frequency division multiplexed (OFDM) systems. It …
modulation (TTCM) is used in orthogonal frequency division multiplexed (OFDM) systems. It …