Research Article
A Collision Aware Multi-link Operation for Next Generation WLAN
@INPROCEEDINGS{10.1007/978-3-031-31275-5_25, author={Disheng An and Bo Li and Mao Yang and Zhongjiang Yan}, title={A Collision Aware Multi-link Operation for Next Generation WLAN}, proceedings={Smart Grid and Internet of Things. 6th EAI International Conference, SGIoT 2022, TaiChung, Taiwan, November 19-20, 2022, Proceedings}, proceedings_a={SGIOT}, year={2023}, month={5}, keywords={Multi-link Operation 802.11be WLAN NSTR}, doi={10.1007/978-3-031-31275-5_25} }- Disheng An
Bo Li
Mao Yang
Zhongjiang Yan
Year: 2023
A Collision Aware Multi-link Operation for Next Generation WLAN
SGIOT
Springer
DOI: 10.1007/978-3-031-31275-5_25
Abstract
In a wireless local area network (WLAN), when the contention is fierce, most of the frames are collided and backoff windows are doubled, resulting in a low channel efficiency. 802.11 be introduces multi-link opertaions (MLO) but faces nonsimultaneous transmit and receive (NSTR) problem which limits the prospects of multi-links. In this paper a new multi-link operation scheme is proposed. When a link is transmitting, antennas from the other link usually suffer huge inteference and can’t receive properly. In the proposed scheme the interfered antennas are switched to the transmitting link to monitor collisions. If collisions are detected, one of the colliders stops transmitting. Collisions are thus eliminated at the early stage. Simulation shows that using this scheme, the channel efficiency of a highly competitive network stays at a high level compared to traditional solutions. Simulation also shows that the proposed scheme offers better QoS.
