CORTEXA
← Browse

Sagar Kavaiya

12 papers indexed

openalexJournal on Wireless Communications and Networking2026-07-07

RIS-assisted 6G V2X with virtual beamforming: secrecy rate maximization and SOP analysis

Rahul Kumar Chawda, Premnarayan Arya, Sagar Kavaiya, Rupali V. Dohare, Vinod Patidar, Mayank Namdev

Abstract The transformation to the sixth-generation (6G) vehicular-to-everything (V2X) networks requires the energy-conscious, ultra-reliable, and low-latency mechanisms of ensuring secure communication. Due to the inherent broadcast nature of vehicular channels, these systems re…

Also available via: Journal on Wireless Communications and Networking

View free PDFSource page
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

View free PDFSource page
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

View free PDFSource page
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

View free PDFSource page
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

View free PDFSource page
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)

View free PDFSource page
openalex2023-04-07

On the Performance of an Improved Energy Detector with Threshold Modification for Cognitive Radio Networks

Narendrakumar Chauhan, Sagar Kavaiya

An Improved Energy Detector (IED) based on Nakagami-m fading channel and Maximal Ratio Combining (MRC) is presented in this paper. With the MRC, the IED is used uniformly, exponentially, and Multiple Input Multiple Output (MIMO). An optimization problem involving 𝑁 secondary use…

Also available via: OpenAlex

View free PDFSource page
openalexarXiv (Cornell University)2022-08-26

An approach to implement Reinforcement Learning for Heterogeneous Vehicular Networks

Bhavya Peshavaria, Sagar Kavaiya, Dhaval Patel

This paper presents the extension of the idea of spectrum sharing in the vehicular networks towards the Heterogeneous Vehicular Network(HetVNET) based on multi-agent reinforcement learning. Here, the multiple vehicle-to-vehicle(V2V) links reuse the spectrum of other vehicle-to-in…

View free PDFSource page
openalex2022-02-22

Optimal 3GPP Fairness Parameters in 5G NR Unlicensed (NR-U) and WiFi Coexistence

Yashraj Kakkad, Dhaval K. Patel, Sagar Kavaiya, Sumei Sun, Miguel López‐Benítez

The fifth-generation networks, designed to provide a better quality of service and spectrum utilization, are rapidly being deployed across the world. 3GPP has proposed a fairness criterion, referred to as "3GPP fairness", for the coexistence of 5G New Radio in unlicensed spectrum…

Also available via: OpenAlex

View free PDFSource page
openalexIET Communications2020-04-06Cited by 11

On the energy detection performance of multi‐antenna correlated receiver for vehicular communication using MGF approach

Sagar Kavaiya, Dhaval K. Patel, Yong Liang Guan, Sumei Sun, Yoong Choon Chang, Joanne Lim

In this work, energy detection‐based spectrum sensing for multiple antenna receiver under the effect of mobility is investigated by considering L number of correlated antenna branches. The authors consider the uniform, exponential and arbitrarily correlation among the antenna bra…

Also available via: Institution of Engineering and Technology

View free PDFSource page