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Item Open Access Unlocking circular economy: overcoming roadblocks to circular healthcare supply chain in Indian healthcare(Emerald, 2025) Agrawal, Deepak; Gupta, Sumit; Dusad, Chandni; Vishwakarma, Amit; Meena, M. L.; Dangayach, Govind Sharan; Jagtap, SandeepPurpose The circular economy concept in the healthcare supply chain can demote using single-use devices by reprocessing, reusing or recycling. India is the most populous country in the world and has numerous challenges to implementing a circular economy in the healthcare supply chain. The objective of this study is to identify and analyse the roadblocks to circular healthcare supply chains in the Indian context. Design/methodology/approach The contribution of the manuscript is to the healthcare supply chain in adopting a circular economy and prioritizing the roadblocks using Fuzzy FUCOM and Fuzzy Bonferroni Mean Operator. A sensitivity analysis is performed to check the robustness of the results obtained. Findings The finding of this study suggests that regulatory roadblock is a more important roadblock in adopting the circular economy in the healthcare supply chain. It is expected that the government should formulate precise and consistent guidelines for the implementation of a circular economy in the healthcare supply chain. In addition, for faster implementation, tax rebate policy should be framed for the industries that are taking the initiative to implement a circular economy in their system. Practical implications This study explores and prioritizes twenty secondary roadblocks categorized into five primary roadblocks that will enhance the motivation of healthcare industries to become green and circular and contribute to the sustainability in healthcare sector. The government agencies should also take initiatives to create awareness about the circular economy among all the stakeholders. Originality/value This research is beneficial for policymakers, researchers, and industrial practitioners and is recommended based on current findings to facilitate the implementation of a circular economy in the healthcare sector.Item Open Access Towards 6G UAV networks: experimental performance analysis(IEEE, 2024-09-29) Warrier, Anirudh; Al-Rubaye, Saba; Tsourdos, AntoniosUnmanned Aerial Vehicles (UAVs) are becoming increasingly prevalent across industries, from surveillance to delivery services, necessitating seamless handover between base stations for continuous operation and safety. Challenges arise due to the need to maintain connectivity and control as the UAV transitions between different access technologies, for Fifth Generation (5G) and beyond such as Sixth Generation (6G). Factors like altitude, mobility, and dynamic operation patterns pose hurdles to achieving smooth handovers critical for mission success. Traditional strategies often lack adaptability and efficiency, prompting the exploration of innovative approaches. To address these challenges, an experimental flight trial evaluates UAV handover performance in a heterogeneous network environment compared to simulation-level analysis. The trial involves UAV flight in an urban area with non-standalone (NSA) 6G connectivity, monitoring key performance indicators (KPIs) such as reference signal received power (RSRP), signal-to-noise interference ratio (SINR), throughput, and number of handovers. The system architecture encompasses an airborne measurement platform (DJI F450 UAV with XCAL mobile measurement tool and Pixhawk 4 Autopilot) and a ground-based counterpart interfacing through the core network. The analysis focuses on three key metrics: RSRP, RSRQ, and SINR, revealing temporary interruptions attributed to the UAV's exclusive connection to the wireless network. Insights from experimental trials highlight complexities and challenges associated with UAV handover performance, informing the design of improved protocols and communication systems. By addressing these challenges, the aim is to enhance operational reliability and mission success, unlocking the full potential of UAV technology across applications like surveillance, reconnaissance, delivery services, and more.