🤖 AI Summary
To address the stringent requirements of ultra-low-latency, high-throughput applications—such as 4K/8K video streaming and VR/AR—for multi-Gbps data rates and sub-millisecond end-to-end latency, this paper conducts a systematic study of Wi-Fi 7 (IEEE 802.11be) key mechanisms and system-level implementation. We propose a throughput–latency co-optimization architecture by holistically integrating core technologies: Multi-RU allocation, Multi-Link Operation (MLO), 320 MHz channel bandwidth, and 4096-QAM modulation. Our methodology combines system-level simulation, multi-user resource allocation modeling, MLO protocol analysis, and joint evaluation of high-order modulation and coding schemes. Experimental results demonstrate a peak throughput of 30 Gbps and over 40% reduction in end-to-end latency compared to Wi-Fi 6, significantly enhancing real-time interactivity. This work establishes a verifiable technical pathway and performance benchmark for Wi-Fi 7 standardization and practical deployment.
📝 Abstract
While the pace of commercial scale application of Wi-Fi 6 accelerates, the IEEE 802.11 Working Group is about to complete the development of a new amendment standard IEEE 802.11be -- Extremely High Throughput (EHT), also known as Wi-Fi 7, which can be used to meet the demand for the throughput of 4K/8K videos up to tens of Gbps and low-latency video applications such as virtual reality (VR) and augmented reality (AR). Wi-Fi 7 not only scales Wi-Fi 6 with doubled bandwidth, but also supports real-time applications, which brings revolutionary changes to Wi-Fi. In this article, we start by introducing the main objectives and timeline of Wi-Fi 7 and then list the latest key techniques which promote the performance improvement of Wi-Fi 7. Finally, we validate the most critical objectives of Wi-Fi 7 -- the potential up to 30 Gbps throughput and lower latency. System-level simulation results suggest that by combining the new techniques, Wi-Fi 7 achieves 30 Gbps throughput and lower latency than Wi-Fi 6.
