Energy adaptive MAC protocol for wireless sensor networks with RF energy transfer

Jaeho Kim, Jaeho Kim, Jang Won Lee

Research output: Chapter in Book/Report/Conference proceedingConference contribution

51 Citations (Scopus)

Abstract

Recently, various energy harvesting techniques from ambient environments were proposed as alternative methods for powering sensor nodes, which convert the ambient energy from environments into electricity to power sensor nodes. However, those techniques are not applicable to the wireless sensor networks (WSNs) in the environment with no ambient energy source. To overcome this problem, an RF energy transfer method was proposed to power wireless sensor nodes. However, the RF energy transfer method also has a problem of unfairness among sensor nodes due to the significant difference between their energy harvesting rates according to their positions. In this paper, we propose a medium access control (MAC) protocol for WSNs based on RF energy transfer. The proposed MAC protocol adaptively manages the duty cycle of sensor nodes according to their the amount of harvested energy as well as the contention time of sensor nodes considering fairness among them. Through simulations, we show that our protocol can achieve a high degree of fairness, while maintaining duty cycle of sensor nodes appropriately according to the amount of their harvested energy.

Original languageEnglish
Title of host publicationICUFN 2011 - 3rd International Conference on Ubiquitous and Future Networks
Pages89-94
Number of pages6
DOIs
Publication statusPublished - 2011
Event3rd International Conference on Ubiquitous and Future Networks, ICUFN 2011 - Dalian, China
Duration: 2011 Jun 152011 Jun 17

Publication series

NameICUFN 2011 - 3rd International Conference on Ubiquitous and Future Networks

Other

Other3rd International Conference on Ubiquitous and Future Networks, ICUFN 2011
CountryChina
CityDalian
Period11/6/1511/6/17

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications

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