Age-of-Information Aware Scheduling under Markovian Energy Arrivals
| Autor: | Sharayu Moharir, Bejjipuram Sombabu |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Mathematical optimization
Information Age 060102 archaeology business.industry Computer science Markov process 020206 networking & telecommunications 06 humanities and the arts 02 engineering and technology Scheduling (computing) Renewable energy symbols.namesake 0202 electrical engineering electronic engineering information engineering symbols 0601 history and archaeology business |
| Zdroj: | SPCOM |
| DOI: | 10.1109/spcom50965.2020.9179542 |
| Popis: | We consider the task of scheduling updates from multiple sources to a central monitoring station via a shared communication channel. Each source harvests energy from nature to measure a time-varying quantity and report these measurements to the monitoring station. Prior work in this area focuses on the setting where energy arrivals are assumed to be independent across time. Motivated by the time-correlation in energy generated by many renewable energy sources, we use a Markov process to model the energy arrivals. The goal is to minimize the time average of the weighted sum of the ages-of-information of the sources. We use Whittle’s relaxation and propose a modification of the Whittle Index to design a scheduling policy. We show that our policy outperforms other natural policies via simulations. |
| Databáze: | OpenAIRE |
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