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Record W4401568018 · doi:10.1109/tvt.2024.3443297

Mobility-Aware Computation Offloading for AR Tasks Over Terahertz Wireless Networks: An Offline Reinforcement Learning Approach

2024· article· en· W4401568018 on OpenAlex

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

VenueIEEE Transactions on Vehicular Technology · 2024
Typearticle
Languageen
FieldEngineering
TopicWireless Body Area Networks
Canadian institutionsCarleton University
FundersNatural Science Foundation of Beijing Municipality
KeywordsReinforcement learningComputer scienceWirelessTerahertz radiationComputationComputer networkArtificial intelligenceMaterials scienceTelecommunicationsOptoelectronics

Abstract

fetched live from OpenAlex

Augmented reality (AR) holds great promise within the Internet of vehicles (IoV), offering real-time, context-aware information to enhance user experiences. Since wireless AR services have stringent requirements for latency and energy efficiency, terahertz (THz) transmission and mobile edge computing (MEC) can be leveraged to address these issues. Besides, reinforcement learning (RL) is widely employed to design resource allocation and offloading decision schemes, further boosting the benefits of THz and MEC communication. However, conventional RL-based schemes necessitate online trial-and-error interactions and policy updates, which may result in unsafe actions and pose risks, e.g., vehicle collisions. Inspired by this, we propose a novel static data-driven AR tasks offloading framework for the IoV with THz communication. The proposed framework utilizes an offline RL algorithm to train the offloading decision agents without real-world interactions. Specifically, we formulate an optimization problem of maximizing user experience by jointly optimizing bandwidth and computation resource allocation. To reduce the complexity of solving the original problem, we decompose it into two subproblems: 1) THz bandwidth allocation and 2) MEC offloading decisions. Considering the unique characteristics of THz communication that users' available bandwidth varies with their distances to the base station (BS), we design a heuristic THz bandwidth allocation algorithm to achieve fair allocation. To address the typical out-of-distribution (OOD) action issue encountered in offline RL, we exploit the conservative Q-learning (CQL) to make the optimal MEC offloading decisions enhancing user experience. Simulation results show that the proposed scheme outperforms state-of-the-art algorithms in terms of algorithm stability and user feedback.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Simulation or modeling · Consensus signal: Simulation or modeling
GenreCandidate signal: Empirical · Consensus signal: none
Teacher disagreement score0.870
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0010.001
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0010.001
Insufficient payload (model declined to judge)0.0000.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.010
GPT teacher head0.237
Teacher spread0.227 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it