High Performance UORA Protocol Designed for IoT-Based Healthcare Applications Running on the EHT WLANs

The rapid expansion of Internet of Things (IoT) has revealed new challenges in various domains, especially in healthcare. IoT-based healthcare applications provide the capability to upgrade patient monitoring, diagnostics and treatment by enabling real-time data collection and analysis. To meet these challenges, the following requirements must first be guaranteed by the communication interface used, namely: wide bandwidth, high throughput, low latency, and reliable data transmission. The forthcoming IEEE 802.11be WLANs (Wireless Local Area Networks) standard introduces a range of innovative features and advanced techniques in order to meet the requirements of IoT applications. One of the prominent transmission techniques ensuring real-time communications is called OFDMA (Orthogonal Frequency Division Multiple Access), it is initially introduced in the IEEE 802.11ax standard. To manage the OFDMA communications in UL (Up-Link) direction (from devices to access point), UORA (Up-link OFDMA Random Access) is the only existing standard MAC protocol. In this paper, we aim at proposing and assessing a new version of UORA protocol called HP-UORA (High Perfoamnce UORA) whose basic principle is reducing waiting delays and effeciently allocating radio resources. The obtained simulations results demonstrate the effectiveness of the proposed protocol.