S
Sanjeev Sharma
Researcher at Indian Institute of Technology (BHU) Varanasi
Publications - 77
Citations - 471
Sanjeev Sharma is an academic researcher from Indian Institute of Technology (BHU) Varanasi. The author has contributed to research in topics: Computer science & Bit error rate. The author has an hindex of 9, co-authored 63 publications receiving 252 citations. Previous affiliations of Sanjeev Sharma include Monash University & Indian Institute of Technology Indore.
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Journal ArticleDOI
Joint Power-Domain and SCMA-Based NOMA System for Downlink in 5G and Beyond
TL;DR: A joint power and code-domain non-orthogonal multiple access technique for the fifth-generation (5G) wireless networks and beyond and a downlink system, where the users’ experience diverse channel conditions, is considered.
Journal ArticleDOI
OTFS-SCMA: A Code-Domain NOMA Approach for Orthogonal Time Frequency Space Modulation
TL;DR: A single-phase detector based on a message-passing algorithm (MPA) to detect multiple users’ symbols for the uplink of the OTFS system is proposed and an algorithm is proposed to devise an optimal codeword allocation scheme.
Journal ArticleDOI
A New Sparse Signal-Matched Measurement Matrix for Compressive Sensing in UWB Communication
TL;DR: A deterministic (partial) UWB waveform-matched measurement matrix is proposed that has a circulant structure and is sparse in nature and is easy to implement in hardware and is operationally time efficient as needed in a practical system.
Proceedings ArticleDOI
SCMA Codebook Based on Optimization of Mutual Information and Shaping Gain
TL;DR: This paper designs an SCMA codebook by optimizing the mutual information and the shaping gain of constellation points with the constraints of fixed minimum Euclidean distance and average power and shows that the SCMA system with the proposed codebook outperforms those with the existing codebooks.
Proceedings ArticleDOI
Design of SCMA Codebooks using Differential Evolution
TL;DR: In this paper, a framework to design the codebooks by taking into account the entire system including the SCMA encoder and the MPA-based detector is presented, where the symbol-error rate (SER) is considered as the design criterion which needs to be minimized.