9 papers
Non Orthogonal Multiple Access with Orthogonal Time Frequency Space Signal Transmission
Aritra Chatterjee, Vivek Rangamgari, Shashank Tiwari +1
Orthogonal time frequency space (OTFS) is being pursued in recent times as a suitable wireless transmission technology for use in high mobility scenarios. In this work, we propose…
OTFS: Interleaved OFDM with Block CP
Vivek Rangamgari, Shashank Tiwari, Suvra Sekhar Das +1
Orthogonal time frequency space (OTFS) modulation is a recently proposed waveform for reliable communication in high-speed vehicular communication scenarios. It has better resilien…
Circularly Pulse Shaped Orthogonal Time Frequency Space Modulation
Shashank Tiwari, Suvra Sekhar Das
Orthogonal time-frequency space (OTFS) modulation is a recently proposed waveform for efficient data transfer in high-speed vehicular scenarios. The use of rectangular pulse shape…
Low Complexity LMMSE Receiver for OTFS
Shashank Tiwari, Suvra Sekhar das, Vivek Rangamgari
Orthogonal time frequency space modulation is a two dimensional (2D) delay-Doppler domain waveform. It uses inverse symplectic Fourier transform (ISFFT) to spread the signal in tim…
Generalized Theoretical Approach for Analysing Optical Experiments
Arpita Maitra, Suvra Sekhar Das
A generalized approach towards modelling any optical experiment is presented. Beam splitter and phase retarders are described in terms of annihilation and creation operators. We no…
Coverage Analysis of 3-D Dense Cellular Networks with Realistic Propagation Conditions
Aritra Chatterjee, Suvra Sekhar Das
In recent times, the use of stochastic geometry has become a popular and important tool for performance analysis of next-generation dense small cell wireless networks. Usually, suc…