Research Article
Rate Control for Multi-link and Multi-relay Wireless LANs Supporting Real-Time Mobile Data Transmissions
@INPROCEEDINGS{10.1007/978-3-030-94822-1_46, author={Kazuki Ikeda and Shohei Omoto and Hiroyuki Yomo and Yoshihisa Kondo and Hiroyuki Yokoyama}, title={Rate Control for Multi-link and Multi-relay Wireless LANs Supporting Real-Time Mobile Data Transmissions}, proceedings={Mobile and Ubiquitous Systems: Computing, Networking and Services. 18th EAI International Conference, MobiQuitous 2021, Virtual Event, November 8-11, 2021, Proceedings}, proceedings_a={MOBIQUITOUS}, year={2022}, month={2}, keywords={Wireless LAN Drone Robustness Real--time data transmissions Rate control Relay}, doi={10.1007/978-3-030-94822-1_46} }- Kazuki Ikeda
Shohei Omoto
Hiroyuki Yomo
Yoshihisa Kondo
Hiroyuki Yokoyama
Year: 2022
Rate Control for Multi-link and Multi-relay Wireless LANs Supporting Real-Time Mobile Data Transmissions
MOBIQUITOUS
Springer
DOI: 10.1007/978-3-030-94822-1_46
Abstract
When a wireless LAN station (STA) installed on a mobile device, such as drone, communicates with an access point (AP) deployed over the ground, its link condition becomes unstable due to mobility and/or interference from surrounding equipment. In this paper, in order to realize reliable data transmissions in such a severe condition, we introduce a multi–link and multi–relay system integrated with broadcast transmissions employing packet–level forward error correction. As a proof–of–concept (PoC), we first conduct an experiment investigating the effectiveness and practicality of the considered multi–link and multi–relay system supporting data transmissions from a drone. Then, we enhance it by proposing rate control for STA to dynamically set its physical layer (PHY) rate based on its position and the link quality for surrounding relays. We also apply overhearing function to each relay to prevent redundant forwarding of the same packets by multiple relays. Our simulation results show an interesting observation that the multi–link and multi–relay system improves energy efficiency of relays when the proposed rate control and overhearing are jointly employed. Furthermore, we show that the multi–link and multi–relay system with link–level broadcast has superior performance to a common unicast based system.
