Title:
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LPDQ: a self-scheduled TDMA MAC protocol for one-hop dynamic low-power wireless networks
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Author:
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Tuset Peiró, Pere; Vázquez Gallego, Francisco; Alonso Zarate, Jesús; Alonso Zarate, Luis; Vilajosana i Guillén, Xavier
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Other authors:
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Centre Tecnològic de Telecomunicacions de Catalunya; Universitat Politècnica de Catalunya; Universitat Oberta de Catalunya. Internet Interdisciplinary Institute (IN3); University of California; Universitat Oberta de Catalunya (UOC) |
Abstract:
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Current Medium Access Control (MAC) protocols for data collection scenarios with a large number of nodes that generate bursty traffic are based on Low-Power Listening (LPL) for network synchronization and Frame Slotted ALOHA (FSA) as the channel access mechanism. However, FSA has an efficiency bounded to 36.8% due to contention effects, which reduces packet throughput and increases energy consumption. In this paper, we target such scenarios by presenting Low-Power Distributed Queuing (LPDQ), a highly efficient and low-power MAC protocol. LPDQ is able to self-schedule data transmissions, acting as a FSA MAC under light traffic and seamlessly converging to a Time Division Multiple Access (TDMA) MAC under congestion. The paper presents the design principles and the implementation details of LPDQ using low-power commercial radio transceivers. Experiments demonstrate an efficiency close to 99% that is independent of the number of nodes and is fair in terms of resource allocation. |
Subject(s):
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-internet de les coses -comunicacions màquina-màquina -control d'accés mitjà -frame Aloha ranurat -cua distribuïda -internet de las cosas -comunicaciones máquina a máquina -control de acceso medio -frame Aloha ranurado -colas distribuidas -internet of things -machine-to-machine communications -medium access control -frame slotted ALOHA -distributed queuing -Computer networks -Ordinadors, Xarxes d' -Ordenadores, Redes de |
Rights:
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(c) Author/s & (c) Journal
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Document type:
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Article Article - Draft |
Published by:
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Pervasive and Mobile Computing
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