Please use this identifier to cite or link to this item: http://repositorio.ufla.br/jspui/handle/1/33451
Title: MAC-AHEAD: um protocolo cross-layer anycast assíncrono adaptável às condições do canal de comunicação
Other Titles: MAC-AHEAD: a cross-layer asynchronous protocol adaptive to the conditions of the communication channel
Authors: Heimfarth, Tales
Giacomin, João Carlos
Heimfarth, Tales
Giacomin, João Carlos
Correia, Luiz Henrique Andrade
Menezes, Luiz Filipe
Keywords: Protocolo MAC
Erros no canal de comunicação
Rede de sensores sem fio (RSSF)
Taxa de erros de pacote
Protocolos cross-layer
Protocolo MAC assíncrono
MAC Protocol
Communication channel errors
Wireless sensor network (WSN)
Packet Error Rate (PER)
Cross-layer protocols
Asynchronous MAC protocol
Issue Date: 4-Apr-2019
Publisher: Universidade Federal de Lavras
Citation: SOUZA, G. C. MAC-AHEAD: um protocolo cross-layer anycast assíncrono adaptável às condições do canal de comunicação. 2019. 78 p. Dissertação (Mestrado em Ciência da Computação)–Universidade Federal de Lavras, Lavras, 2019.
Abstract: This work presents the MAC-AHEAD, an asynchronous cross-layer anycast protocol for Wire-less Sensor Networks (WSNs). This protocol uses inactive/active duty cycle as a way to reduce power consumption and employs the anycast communication model to reduce the propagation time of data messages. A phased messaging method is responsible for reducing latency in data delivery. In the first phase, a sequence of RTS control messages is sent to discover the next hop on the route and to stagger its wake-up time. In the second phase, the DATA message is sent some hops after the RTS. Thus, RTS and DATA roam the route from source to destination simul-taneously, reducing latency without extra power consumption. To speed up the propagation of RTS, an anycast method is employed. A set of neighbors, called FCS (Forward Candidate Set), are chosen as good forwarders for the data message. The MAC-AHEAD protocol selects as the next router the FCS member that first responds to the RTS. The selection of FCS members is based on two parameters, the proximity of the destination node and the SINR (signal-to-noise/interference-ratio) perceived by the neighboring node when receiving the RTS message. In order to evaluate the performance of MAC-AHEAD, this was compared with the X-MAC and PAX-MAC protocols. The results of the simulations showed, for the scenarios tested, that the proposed protocol surpasses the other two in latency and energy consumption.
URI: http://repositorio.ufla.br/jspui/handle/1/33451
Appears in Collections:Ciência da Computação - Mestrado (Dissertações)



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