Towards Better Communication Schemes for IoT-driven Societies
2025.06.30
Research
Grant-free communication schemes are a promising way to connect massive numbers of IoT devices, but they can suffer from interference and uneven performance. Researchers from Japan have made progress in addressing this challenge by developing a detailed mathematical model of how these schemes perform under various conditions. Their findings reveal a key trade-off between network fairness and optimal performance, offering insights for designing future 5G and 6G systems that support smart cities and connected healthcare.
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A key vision of 5G wireless networks is the interconnectivity of hundreds of thousands of devices per square kilometer, which requires significant advances in communication schemes to avoid data collisions and interference, while ensuring good performance. This study explores the advantages and fundamental limitations of a specific type of access scheme that Internet-of-Things devices would use to send and request data through the network.