{"title":"Toward a MAC Protocol Overcoming Hidden Stations Issue in IEEE 802.11ax Unidirectional Full Duplex Radio Communications","authors":"Kenza Hocini, M. Yazid","doi":"10.1109/EDiS49545.2020.9296431","DOIUrl":null,"url":null,"abstract":"The Full Duplex (FD) radio technology has been spotlighted as one of the key technologies in the future generation of High Efficiency WLANs (Wireless Local Area Networks). Indeed, it has the advantage of doubling the throughput of the Half Duplex radio (HD) through the adoption of SIC (Self-Interference Cancellation) antennas. By means of said antennas, simultaneous transmissions and receptions are therefore possible at the same time on the same radio frequencies. The Full Duplex radio communications are classified into two types: Bidirectional Full Duplex (BFD) and Unidirectional Full Duplex (UFD). In case of UFD communications, the Access Point (AP) shall not accept any Up-Link (UL) traffic from any wireless station, as this traffic could interfere with Down-Link (DL) traffic. Thus, UFD communications are only possible when the station that has UL traffic is hidden to the other station that has traffic to receive from AP. The main goal of this paper is extending the operation rules of the exiting 02-MAC (OFDMA Two symbol coordination Medium Access Control) protocol, thereby enabling the AP to select between candidate hidden stations which could participate in an UFD communication without interference. The obtained simulations results demonstrate that the proposal provides better performances in terms of throughput and overhead.","PeriodicalId":119426,"journal":{"name":"2020 Second International Conference on Embedded & Distributed Systems (EDiS)","volume":"139 1 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2020-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2020 Second International Conference on Embedded & Distributed Systems (EDiS)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/EDiS49545.2020.9296431","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 3
Abstract
The Full Duplex (FD) radio technology has been spotlighted as one of the key technologies in the future generation of High Efficiency WLANs (Wireless Local Area Networks). Indeed, it has the advantage of doubling the throughput of the Half Duplex radio (HD) through the adoption of SIC (Self-Interference Cancellation) antennas. By means of said antennas, simultaneous transmissions and receptions are therefore possible at the same time on the same radio frequencies. The Full Duplex radio communications are classified into two types: Bidirectional Full Duplex (BFD) and Unidirectional Full Duplex (UFD). In case of UFD communications, the Access Point (AP) shall not accept any Up-Link (UL) traffic from any wireless station, as this traffic could interfere with Down-Link (DL) traffic. Thus, UFD communications are only possible when the station that has UL traffic is hidden to the other station that has traffic to receive from AP. The main goal of this paper is extending the operation rules of the exiting 02-MAC (OFDMA Two symbol coordination Medium Access Control) protocol, thereby enabling the AP to select between candidate hidden stations which could participate in an UFD communication without interference. The obtained simulations results demonstrate that the proposal provides better performances in terms of throughput and overhead.
全双工(FD)无线通信技术已成为下一代高效无线局域网的关键技术之一。事实上,它的优点是通过采用SIC(自干扰消除)天线将半双工无线电(HD)的吞吐量提高了一倍。通过所述天线,因此可以在同一时间在同一无线电频率上同时发送和接收。全双工无线电通信分为BFD (Bidirectional Full Duplex)和UFD (Unidirectional Full Duplex)两种。在UFD通信的情况下,接入点(AP)不应接受来自任何无线站的任何上行链路(UL)流量,因为这些流量可能会干扰下行链路(DL)流量。因此,只有当具有UL流量的站点对另一个有流量接收AP的站点隐藏时,才能实现UFD通信。本文的主要目标是扩展现有的02-MAC (OFDMA双符号协调介质访问控制)协议的操作规则,从而使AP能够在候选隐藏站点之间进行选择,这些隐藏站点可以不受干扰地参与UFD通信。仿真结果表明,该方案在吞吐量和开销方面具有较好的性能。