Poster abstract : Energy-efficient rate adaptive MAC Protocol (RA-MAC) for long-lived sensor networks
Data(s) |
2009
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Resumo |
This paper introduces an energy-efficient Rate Adaptive MAC (RA-MAC) protocol for long-lived Wireless Sensor Networks (WSN). Previous research shows that the dynamic and lossy nature of wireless communication is one of the major challenges to reliable data delivery in a WSN. RA-MAC achieves high link reliability in such situations by dynamically trading off radio bit rate for signal processing gain. This extra gain reduces the packet loss rate which results in lower energy expenditure by reducing the number of retransmissions. RA-MAC selects the optimal data rate based on channel conditions with the aim of minimizing energy consumption. We have implemented RA-MAC in TinyOS on an off-the-shelf sensor platform (TinyNode), and evaluated its performance by comparing RA-MAC with state-ofthe- art WSN MAC protocol (SCP-MAC) by experiments. |
Formato |
application/pdf |
Identificador | |
Relação |
http://eprints.qut.edu.au/33768/1/33768.pdf http://ewsn09.v6testbed.net/index.html Chen, Quanjun, Hu, Wen, & Corke, Peter (2009) Poster abstract : Energy-efficient rate adaptive MAC Protocol (RA-MAC) for long-lived sensor networks. In 6th European Conference on Wireless Sensor Networks EWSN 2009, 11-13 February 2009, Clarion Hotel, Cork, Ireland. (Unpublished) |
Direitos |
Copyright 2009 [please consult author] |
Fonte |
Faculty of Built Environment and Engineering; School of Engineering Systems |
Palavras-Chave | #090600 ELECTRICAL AND ELECTRONIC ENGINEERING #wireless sensor networks #MAC protocol #RA-MAC |
Tipo |
Conference Paper |