A Buffer Management Technique for Guaranteed Desired Communication Reliability and Low-Power in Wireless Sensor Networks

Dae-Young KIM  Jinsung CHO  Ben LEE  

IEICE TRANSACTIONS on Communications   Vol.E93-B   No.12   pp.3522-3525
Publication Date: 2010/12/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.E93.B.3522
Print ISSN: 0916-8516
Type of Manuscript: Special Section LETTER (Special Section on Wireless Distributed Networks)
buffer management,  reliable transmission,  loss recovery,  wireless sensor networks,  

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Reliable data transmission is desirable in wireless sensor networks due to the high packet loss rate during multi-hop transmissions. To reliably transmit data for event-driven applications, packet loss recovery mechanism is needed. For loss recovery, sensor nodes need to keep packets in their buffers until transmissions successfully complete. However, since sensor nodes have limited memory, packets cannot be buffered for a long period of time. This letter proposes an efficient buffer management technique that caches data packets for appropriate amount of time to minimize the resource requirements and at the same time provide reliable data transmission among sensor nodes.