Age and Energy Analysis for LDPC Coded Status Update With and Without ARQ
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Internet of Things Journal"
DOI: 10.1109/jiot.2020.2989166
Abstract: Age of Information (AoI) is a fundamentally important metric to characterize the freshness of information in real-time Internet-of-Things (IoT) monitoring systems. Another important metric is the energy cost for information sensing and transmission. In this… read more here.
Keywords: energy cost; coded status; age; energy ... See more keywords
Average AoI Minimization in UAV-assisted Data Collection with RF Wireless Power Transfer: A Deep Reinforcement Learning Scheme
Sign Up to like & getrecommendations! Published in 2021 at "IEEE Internet of Things Journal"
DOI: 10.1109/jiot.2021.3110138
Abstract: This paper studies the UAV-assisted wireless powered network, where a UAV is dispatched to wirelessly charge multiple ground nodes (GNs) by using radio frequency (RF) energy transfer and then the GNs use their harvested energy… read more here.
Keywords: energy; uav; average aoi; reinforcement learning ... See more keywords
Scheduling Schemes for Age Optimization in IoT Systems With Limited Retransmission Times
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Internet of Things Journal"
DOI: 10.1109/jiot.2022.3181260
Abstract: Age of Information (AoI) is a recently introduced metric to capture data freshness. In this article, we consider a multiuser single-destination Internet of Things (IoT) system with periodic state updating, and investigate the scheduling methods… read more here.
Keywords: limited retransmission; average aoi; retransmission; policy ... See more keywords
Improving Information Freshness via Backbone-Assisted Cooperative Access Points
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Internet of Things Journal"
DOI: 10.1109/jiot.2022.3218948
Abstract: Information freshness, characterized by Age of Information (AoI), is important for sensor applications involving timely status updates. In many cases, the wireless signals from one sensor can be received by multiple access points (APs). This… read more here.
Keywords: information; access points; information freshness; backbone assisted ... See more keywords
Average AoI Minimization for Energy Harvesting Relay-aided Status Update Network Using Deep Reinforcement Learning
Sign Up to like & getrecommendations! Published in 2023 at "IEEE Wireless Communications Letters"
DOI: 10.1109/lwc.2023.3278864
Abstract: A dual-hop status update system aided by energy harvesting (EH) relays with finite data and energy buffers is studied in this work. To achieve timely status updates, the best relays should be selected to minimize… read more here.
Keywords: energy harvesting; status update; energy; status ... See more keywords
Non-Orthogonal Multiple Access-Based Average Age of Information Minimization in LEO Satellite-Terrestrial Integrated Networks
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Transactions on Green Communications and Networking"
DOI: 10.1109/tgcn.2022.3159559
Abstract: In this paper, we investigate non-orthogonal multiple access (NOMA) based average age of information (AoI) in LEO satellite-terrestrial integrated networks. Two-user NOMA scheme is used in terrestrial networks and several satellites provide orthogonal access for… read more here.
Keywords: minimization; orthogonal multiple; multiple access; average aoi ... See more keywords