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Open AccessArticle

Social-Aware Peer Discovery for Energy Harvesting-Based Device-To-Device Communications

1
Department of Information Management, National Taiwan University of Science and Technology, Taipei 106, Taiwan
2
Department of Information Management, National Taipei University of Nursing and Health Sciences, Taipei 112, Taiwan
3
Bachelor Program in Interdisciplinary Studies, National Yunlin University of Science and Technology, Yunlin 640, Taiwan
*
Author to whom correspondence should be addressed.
Sensors 2019, 19(10), 2304; https://doi.org/10.3390/s19102304
Received: 7 March 2019 / Revised: 27 April 2019 / Accepted: 16 May 2019 / Published: 18 May 2019
(This article belongs to the Special Issue Green, Energy-Efficient and Sustainable Networks)
In Device-to-Device (D2D) communications, the first step is to find all of the neighboring peers in the network by performing a peer discovery process. Most previous studies use the social behaviors of the users to adjust the sending rates of the peer discovery messages (i.e., beacons) under the constraint of consumed power for increasing the Peer Discovery Ratio (PDR). However, these studies do not consider the potential for energy harvesting, which allows for the User Equipments (UEs) to procure additional power within charging areas. Accordingly, this paper proposes an Energy-Ratio Rate Decision (ERRD) algorithm that comprises three steps, namely Social Ratio Allocation (SRA), Energy Ratio Allocation (ERA), and Beacon Rate Decision (BRD). The SRA step determines the allocated power quantum for each UE from the total budget power based on the social behavior of the UE. The ERA step then adjusts this allocated power quantum in accordance with the power that is harvested by the UE. Finally, the BRD step computes the beacon rate for the UE based on the adjusted power quantum. The simulation results show that ERRD outperforms the previously-reported Social-Based Grouping (SBG) algorithm by 190% on the PDR for a budget power of one watt and 8% for a budget power of 20 watts. View Full-Text
Keywords: Device-to-Device (D2D); peer discovery; energy harvesting; social awareness Device-to-Device (D2D); peer discovery; energy harvesting; social awareness
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MDPI and ACS Style

Legese Hailemariam, Z.; Lai, Y.-C.; Chen, Y.-H.; Wu, Y.-H.; Chang, A. Social-Aware Peer Discovery for Energy Harvesting-Based Device-To-Device Communications. Sensors 2019, 19, 2304. https://doi.org/10.3390/s19102304

AMA Style

Legese Hailemariam Z, Lai Y-C, Chen Y-H, Wu Y-H, Chang A. Social-Aware Peer Discovery for Energy Harvesting-Based Device-To-Device Communications. Sensors. 2019; 19(10):2304. https://doi.org/10.3390/s19102304

Chicago/Turabian Style

Legese Hailemariam, Zelalem; Lai, Yuan-Cheng; Chen, Yen-Hung; Wu, Yu-Hsueh; Chang, Arthur. 2019. "Social-Aware Peer Discovery for Energy Harvesting-Based Device-To-Device Communications" Sensors 19, no. 10: 2304. https://doi.org/10.3390/s19102304

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