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Dharmendra Chauhan

11 papers indexed

openalexZenodo (CERN European Organization for Nuclear Research)2026-06-14

Blockchain-Edge Security Framework for Industrial IoT Smart Spaces: Chaincode, Benchmark Harness, and Experimental Data

Martin Parmar, Het Khatusuriya, Dharmendra Chauhan, Mrugendra Rahevar, Bimal Patel, Hiren Mewada

Source code and raw experimental data supporting the paper "A Hardware-Validated Permissioned Blockchain-Edge Security Framework for Industrial IoT Smart Spaces" (submitted to IEEE Transactions on Industrial Informatics, 2026). Includes: (1) the Hyperledger Fabric v2.4.9 chaincod…

Also available via: European Organization for Nuclear Research

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openalexTelecom2025-06-16

Performance Analysis of Generalized Quadrature Spatial Modulation with Quasi-Orthogonal Space-Time Block Codes Under Nakagami m-Fading Channels

Sagarkumar Patel, Harishkumar B Chaudhari, Dharmendra Chauhan, Hardik Modi, Hiren Mewada, Sagar Kavaiya

Spatial Modulation (SM) is a promising technique for future wireless communication systems, as it reduces hardware cost and complexity while maintaining good bit error rate (BER) performance in MIMO systems. However, in real-world scenarios, systems often face challenges like ant…

Also available via: Multidisciplinary Digital Publishing Institute

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openalexIEEE Access2025-01-01Cited by 18

Nation’s Defense: A Comprehensive Review of Anti-Drone Systems and Strategies

Dharmendra Chauhan, Harshil Kagathara, Hiren Mewada, Sagarkumar Patel, Sagar Kavaiya, Gordana Barb

The rapid advancement of drone technology has revolutionized both the civilian and military sectors, enabling a wide range of applications, from commercial deliveries to battlefield reconnaissance. However, the misuse of drones has introduced significant security threats, necessi…

Also available via: Institute of Electrical and Electronics Engineers

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openalexIEEE Open Journal of the Communications Society2025-01-01Cited by 1

Toward Reliable and Efficient 6G Wireless Communication: A GQSM-QOSTBC-Based Spatial Modulation Framework

Sagarkumar Patel, Dharmendra Chauhan, Hiren Mewada, Harishkumar B Chaudhari, Sagar Kavaiya, Hardik Modi, et al.

This paper presents a new spatial modulation framework for future wireless communication networks by combining Generalized Quadrature Spatial Modulation (GQSM) with improved Quasi-Orthogonal Space-Time Block Codes (QOSTBC). The proposed detection method employs channel-matched fi…

Also available via: IEEE Communications Society

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openalexSustainability2024-07-30Cited by 26

Balancing Technological Innovation and Environmental Sustainability: A Lifecycle Analysis of 6G Wireless Communication Technology

Dharmendra Chauhan, Hiren Mewada, Vishva Gondalia, Faris A. Almalki, Sagarkumar Patel, Hardik Modi, et al.

Wireless communication has revolutionized the evolution of humankind. The rapid growth and development of mobile communication has created an ecosystem better than what has been before. However, issues such as ample energy consumption and resulting carbon emissions, a lack of pro…

Also available via: Multidisciplinary Digital Publishing Institute

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openalexComputers, materials & continua/Computers, materials & continua (Print)2024-01-01Cited by 4

Physical Layer Security of 6G Vehicular Networks with UAV Systems: First Order Secrecy Metrics, Optimization, and Bounds

Sagar Kavaiya, Hiren Mewada, Sagarkumar Patel, Dharmendra Chauhan, Faris A. Almalki, Hana Mujlid

The mobility and connective capabilities of unmanned aerial vehicles (UAVs) are becoming more and more important in defense, commercial, and research domains. However, their open communication makes UAVs susceptible to undesi... | Find, read and cite all the research you need on…

Also available via: Computers, materials & continua/Computers, materials & continua (Print)

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openalexElectronics2022-04-26Cited by 39

Inverted-L Shaped Wideband MIMO Antenna for Millimeter-Wave 5G Applications

Amit Patel, Alpesh Vala, Arpan Desai, Issa Elfergani, Hiren Mewada, Keyur Mahant, et al.

Interconnected three-element and four-element wideband MIMO antennas have been proposed for millimeter-wave 5G applications by performing numerical computations and carrying out experimental measurements. The antenna structure is realized using Rogers 5880 substrate (εr = 2.2, ta…

Also available via: Multidisciplinary Digital Publishing Institute

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openalexRadioelectronics and Communications Systems2019-12-01Cited by 2

Improvement of Symbol Error Rate Performance in Spatial Multiplexing Systems Using Transmit Antenna Selection

Dharmendra Chauhan, Jaymin Bhalani, Y. N. Trivedi

In this paper, we consider Mt×M system (Mt > M), where Mt and M are the numbers of antennas at the transmitter and receiver, respectively. We select M out of Mt transmit antennas using two different antenna selection schemes. In scheme 1, we select the subset of M antennas out of…

Also available via: Pleiades Publishing

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openalexRadioelectronics and Communications Systems2018-05-01Cited by 3

Improved VBLAST MAP: A Novel Point-to-Point Symbol Detection Algorithm for MIMO Wireless Communication Systems

Dharmendra Chauhan, Jaymin Bhalani, Y. N. Trivedi

Anovel point-to-point symbol detection algorithm in multiple input multiple output (MIMO) system is proposed. This algorithm is an augmentation of two popular algorithms, namely, vertical Bell laboratories layered space-time (VBLAST) and maximum a posteriori probability (MAP). He…

Also available via: Pleiades Publishing

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openalexRadioelectronics and Communications Systems2017-07-01Cited by 4

Performance of nonlinear detectors in spatial multiplexing for spatially correlated channels

Dharmendra Chauhan, Jaymin Bhalani

Spatial multiplexing is used in multiple input multiple output (MIMO) wireless systems to increase the data rate. Some nonlinear detectors, such as minimum mean square error (MMSE) Vertical Bell laboratories layered space-time (VBLAST), Maximum A-Posteriori (MMSE VBLAST MAP), and…

Also available via: Pleiades Publishing

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openalexInternational Journal of Communications Network and System Sciences2011-01-01Cited by 1

Novel Semi-blind Channel Estimation Schemes for Rayleigh Flat Fading MIMO Channels

Jaymin Bhalani, Dharmendra Chauhan, Y.P. Kosta, Aditya Trivedi

In this paper, we propose two novel semi-blind channel estimation techniques based on QR decomposition for Rayleigh flat fading Multiple Input Multiple output (MIMO) channel using various pilot symbols. In the first technique, the flat-fading MIMO channel matrix H can be decompos…

Also available via: Scientific Research Publishing

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