6 papers
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…
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…
Age of Information-Oriented Probabilistic Link Scheduling for Device-to-Device Networks
Lixin Wang, Qian Wang, He Chen +1
This paper focuses on optimizing the long-term average age of information (AoI) in device-to-device (D2D) networks through age-aware link scheduling. The problem is naturally formu…
Optimizing Information Freshness in Uplink Multiuser MIMO Networks with Partial Observations
Jingwei Liu, Qian Wang, He Chen
This paper investigates a multiuser scheduling problem within an uplink multiple-input multi-output (MIMO) status update network, consisting of a multi-antenna base station (BS) an…
Fresh-Fi: Enhancing Information Freshness in Commodity WiFi Systems via Customizing Lower Layers
Zixiao Han, Qian Wang, He Chen
Enhancing information freshness in wireless networks has gained significant attention in recent years. To optimize or analyze information freshness, which is often characterized by…
Age of Information in Reservation Multi-Access Networks with Stochastic Arrivals
Qian Wang, He Chen
This paper investigates the Age of Information (AoI) performance of Frame Slotted ALOHA with Reservation and Data slots (FSA-RD). We consider a symmetric multi-access network where…