3 papers
cs.IT2026
An AoI-oriented Time-Frequency Distributed Access Mechanism in Wireless Sensor Networks with Spectrum Division
Jingwei Liu, Fang Liu, Wing Shing Wong +2
The increasing adoption of spectrum-division techniques enables concurrent uplink transmissions over multiple orthogonal resources, yet low-overhead access design with effective in…
cs.IT2025
Optimizing Information Freshness of IEEE 802.11ax Uplink OFDMA-Based Random Access
Jingwei Liu, Qian Wang, He Chen
The latest WiFi standard, IEEE 802.11ax (WiFi 6), introduces a novel uplink random access mechanism called uplink orthogonal frequency division multiple access-based random access…
cs.IT2024
Optimizing AoI at Query in Multiuser Wireless Uplink Networks: A Whittle Index Approach
Jingwei Liu, He Chen
In this paper, we explore how to schedule multiple users to optimize information freshness in a pull-based wireless network, where the status updates from users are requested by ra…