DV-Hop Localization Algorithm Optimized by NSGA-II for UWSNs
Bibliographic record
Abstract
To address the pressing demands of marine resource exploration, this paper investigates the problem of node localization in underwater acoustic wireless networks and proposes a two-stage progressive collaborative optimization framework to overcome the performance limitations of the traditional DV-Hop algorithm. Error sources of DV-Hop in underwater scenarios are systematically analyzed, and a quantitative localization model, NSGA-II-DV-Hop, is established to incorporate both hop count estimation errors and position calculation errors. Based on this analysis, a two-stage optimization strategy is developed. In the first stage, an adaptive particle swarm optimization model, PSO-DV-Hop, is designed, where a dynamic inertia weight adjustment mechanism enhances global search efficiency, thereby reducing localization error and energy consumption. In the second stage, a Pareto-Based evolutionary optimization model, NSGA-II-DV-Hop, is introduced to realize simultaneous optimization of localization accuracy and energy efficiency through Pareto frontier analysis. Experimental results demonstrate that PSO-DV-Hop improves localization performance by reducing the average error by 18.2% and lowering the number of convergence iterations by 61%. Building on this, NSGA-II-DV-Hop further extends the network lifetime by 26.9%, reduces average node energy consumption by 10.07%, and achieves an additional 8.67% energy optimization.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot 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.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
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.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".