Recent advancements in wireless local area network (WLAN) technology include IEEE 802.11be and 802.11ay, often known as Wi-Fi 7 and WiGig, respectively. The goal of these developments is to provide Extremely High Throughput (EHT) and low latency to meet the demands of future applications like as 8K videos, augmented and virtual reality, the Internet of Things, telesurgery, and other developing technologies. IEEE 802.11be includes new features such as 320 MHz bandwidth, multi-link operation, Multi-user Multi-Input Multi-Output, orthogonal frequency-division multiple access, and Multiple-Access Point (multi-AP) coordination (MAP-Co) to achieve EHT. With the increase in the number of overlapping APs and inter-AP interference, researchers have focused on studying MAP-Co approaches for coordinated transmission in IEEE 802.11be, making MAP-Co a key feature of future WLANs. Moreover, similar issues may arise in EHF bands WLAN, particularly for standards beyond IEEE 802.11ay. This has prompted researchers to investigate the implementation of MAP-Co over future 802.11ay WLANs. Thus, in this article, we provide a comprehensive review of the state-of-the-art MAP-Co features and their shortcomings concerning emerging WLAN. Finally, we discuss several novel future directions and open challenges for MAP-Co.

翻译：近年来，无线局域网（WLAN）技术的进步包括IEEE 802.11be和802.11ay标准，分别被称为Wi-Fi 7和WiGig。这些技术演进旨在提供极高吞吐量（EHT）和低延迟，以满足8K视频、增强现实与虚拟现实、物联网、远程手术等未来新兴应用的需求。为实现EHT，IEEE 802.11be引入了320 MHz带宽、多链路操作、多用户多输入多输出、正交频分多址和多接入点协调（MAP-Co）等新特性。随着重叠接入点数量增加及接入点间干扰加剧，研究人员致力于研究IEEE 802.11be中用于协调传输的MAP-Co方法，使MAP-Co成为未来WLAN的关键特性。此外，类似问题也可能出现在极高频段WLAN中，特别是超越IEEE 802.11ay的标准。这促使研究人员探索在未来802.11ay WLAN上实施MAP-Co的方案。因此，本文系统综述了面向新兴WLAN的最先进MAP-Co特性及其局限性，最后讨论了MAP-Co的若干新颖未来方向与开放挑战。