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Title: Experimental energy consumption of frame slotted ALOHA and distributed queuing for data collection scenarios
Author: Tuset Peiró, Pere  
Vázquez Gallego, Francisco
Alonso Zarate, Jesús
Alonso Zarate, Luis
Vilajosana i Guillén, Xavier
Others: Centre Tecnològic de Telecomunicacions de Catalunya
Universitat Politècnica de Catalunya
Universitat Oberta de Catalunya. Internet Interdisciplinary Institute (IN3)
Keywords: medium access control
energy consumption
data collection
distributed queuing
frame slotted
Issue Date: 24-Jul-2014
Publisher: Sensors
Citation: Tuset Peiró, P., Vázquez Gallego, F., Alonso Zarate, J., Alonso, L. & Vilajosana, X. (2014). Experimental energy consumption of frame slotted ALOHA and distributed queuing for data collection scenarios. Sensors, 14(8), 13416-13436. doi: 10.3390/s140813416
Project identifier: info:eu-repo/grantAgreement/FP7-288879
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Abstract: Data collection is a key scenario for the Internet of Things because it enables gathering sensor data from distributed nodes that use low-power and long-range wireless technologies to communicate in a single-hop approach. In this kind of scenario, the network is composed of one coordinator that covers a particular area and a large number of nodes, typically hundreds or thousands, that transmit data to the coordinator upon request. Considering this scenario, in this paper we experimentally validate the energy consumption of two Medium Access Control (MAC) protocols, Frame Slotted ALOHA (FSA) and Distributed Queuing (DQ). We model both protocols as a state machine and conduct experiments to measure the average energy consumption in each state and the average number of times that a node has to be in each state in order to transmit a data packet to the coordinator. The results show that FSA is more energy efficient than DQ if the number of nodes is known a priori because the number of slots per frame can be adjusted accordingly. However, in such scenarios the number of nodes cannot be easily anticipated, leading to additional packet collisions and a higher energy consumption due to retransmissions. Contrarily, DQ does not require to know the number of nodes in advance because it is able to efficiently construct an ad hoc network schedule for each collection round. This kind of a schedule ensures that there are no packet collisions during data transmission, thus leading to an energy consumption reduction above 10% compared to FSA.
Language: English
ISSN: 1424-8220MIAR
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