Implementation and Evaluation of IEEE 802.11ax Channel Sounding Frame Exchange in ns-3
Implementation and Evaluation of IEEE 802.11ax Channel Sounding Frame Exchange in ns-3
复制标题
ns-3 中 IEEE 802.11ax 信道探测帧交换的实现和评估
DOI：
10.1145/3592149.3592152
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发表时间：
2023
期刊：
影响因子：
--
通讯作者：
Blough, Douglas M.
中科院分区：
文献类型：
--
作者：
Zhang, Jingyuan;Avallone, Stefano;Blough, Douglas M.
为了在无线局域网（wlan）中实现极高的吞吐量，在当前和未来的标准中已经考虑了包括多用户多输入多输出（MU-MIMO）、波束形成技术和多个接入点（ap）之间的协调波束形成在内的新特性。所有这些特性都要求站点测量无线信道并将信道状态信息（CSI）反馈给ap。然而，由于缺少CSI采集功能，在ns-3中评估这些技术的系统级性能仍然是不切实际的。本文描述了一种基于IEEE 802.11ax的介质访问控制（MAC）层信道探测过程的ns-3实现。仿真结果显示了信道探测过程的开销，并为评估信道探测对网络性能的影响提供了第一步。
To enable extremely high throughput in wireless local area networks (WLANs), new features including Multi-User Multiple-Input Multiple-Output (MU-MIMO), beamforming techniques, and coordinated beamforming among multiple access points (APs) have been considered in current and future standards. All of these features require stations to measure the wireless channel and feed back channel state information (CSI) to APs. However, it is still impractical to evaluate system-level performance of these techniques in ns-3 since the functionality of CSI acquisition is missing. In this paper, an ns-3 implementation of channel sounding process in medium access control (MAC) layer based on IEEE 802.11ax is described. Simulation results are presented to show the overhead of the channel sounding process and provide a first step toward evaluating the impact of channel sounding on network performance.
IEEE 802.11ax 中具有动态链路自适应的智能 MU-MIMO 用户选择
影响因子：
10.4
作者：
Raja Karmakar;Samiran Chattopadhyay;Sandip Chakraborty
通讯作者：
Sandip Chakraborty