ISSN : 1796-2056
Volume : 3    Issue : 6    Date : June 2008

An Application-Specific Reliable Data Transfer Protocol in Wireless Sensor Networks
Damayanti Datta and Sukhamay Kundu
Page(s): 69-81
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We present a new protocol for reliable data transfer in time-critical applications with zero tolerance
for data loss in wireless sensor networks which uses less time and fewer messages in
comparison to an established protocol PSFQ. Two key features of our protocol are out-of-sequence
forwarding of packets with a priority order for sending different types of messages at nodes and
delaying the requests for missing packets. We present two methods for computation of the delay in
requesting missing packets.

Index Terms
sensor networks, reliable data transfer