Introduction to algorithms
PSFQ: a reliable transport protocol for wireless sensor networks
WSNA '02 Proceedings of the 1st ACM international workshop on Wireless sensor networks and applications
Protocols and Architectures for Wireless Sensor Networks
Protocols and Architectures for Wireless Sensor Networks
IEEE Communications Magazine
Journal of Systems Architecture: the EUROMICRO Journal
Scalable redundancy for sensors-to-sink communication
IEEE/ACM Transactions on Networking (TON)
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Due to the high packet loss rate during multi-hop transmissions in wireless sensor networks, more reliable end-to-end data transmission is desirable. Because wireless sensor network applications require various levels of communication reliability (CR), the end-to-end data transmission should satisfy the desired CR of the applications. In this letter, we propose a flexible loss recovery mechanism for sensor network applications with various CRs. The proposed scheme caches data packets at intermediate nodes over routing paths computed by CR to retransmit lost packets during multi-hop transmissions. Because the proposed scheme presents a tradeoff between end-to-end delays and memory requirements dependent on CR, it can be used flexibly in various sensor network applications.