8 papers
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…
Multichannel Conflict-Avoiding Codes for Expanded Scenarios
Tsai-Lien Wong, Kangkang Xu, Yuan-Hsun Lo +2
A conflict-avoiding code (CAC) of length L and weight w is used for deterministic multiple-access without feedback. When the number of simultaneous active users is less than or equ…
Age of Information for Constrained Scheduling with Imperfect Feedback
Yuqing Zhu, Yuan-Hsun Lo, Yan Lin +1
This paper considers a downlink system where an access point sends the monitored status of multiple sources to multiple users. By jointly accounting for imperfect feedback and cons…
Color Multiset Codes based on Sunmao Construction
Wing Shing Wong, Chung Shue Chen, Yuan-Hsun Lo
We present results on coding using multisets instead of ordered sequences. The study is motivated by a moving object tracking problem in a sensor network and can find applications…
Multiset Combinatorial Gray Codes with Application to Proximity Sensor Networks
Chung Shue Chen, Wing Shing Wong, Yuan-Hsun Lo +1
We investigate coding schemes that map source symbols into multisets of an alphabet set. Such a formulation of source coding is an alternative approach to the traditional framework…
Optimal Constant-Weight and Mixed-Weight Conflict-Avoiding Codes
Yuan-Hsun Lo, Tsai-Lien Wong, Kangkang Xu +1
A conflict-avoiding code (CAC) is a deterministic transmission scheme for asynchronous multiple access without feedback. When the number of simultaneously active users is less than…