PSFQ: a reliable transport protocol for wireless sensor networks
WSNA '02 Proceedings of the 1st ACM international workshop on Wireless sensor networks and applications
Information assurance in sensor networks
WSNA '03 Proceedings of the 2nd ACM international conference on Wireless sensor networks and applications
ReInForM: Reliable Information Forwarding Using Multiple Paths in Sensor Networks
LCN '03 Proceedings of the 28th Annual IEEE International Conference on Local Computer Networks
A scalable approach for reliable downstream data delivery in wireless sensor networks
Proceedings of the 5th ACM international symposium on Mobile ad hoc networking and computing
A wireless sensor network For structural monitoring
SenSys '04 Proceedings of the 2nd international conference on Embedded networked sensor systems
Multi-path-based Distributed TCP Caching for Wireless Sensor Networks
SNPD '07 Proceedings of the Eighth ACIS International Conference on Software Engineering, Artificial Intelligence, Networking, and Parallel/Distributed Computing - Volume 03
RCRT: rate-controlled reliable transport for wireless sensor networks
Proceedings of the 5th international conference on Embedded networked sensor systems
GARUDA: Achieving Effective Reliability for Downstream Communication in Wireless Sensor Networks
IEEE Transactions on Mobile Computing
Performance Evaluation of DTSN in Wireless Sensor Networks
Wireless Systems and Mobility in Next Generation Internet
TCP Dynamics and Adaptive MAC Retry-Limit Aware Link-Layer Adaptation over IEEE 802.11 WLAN
CNSR '09 Proceedings of the 2009 Seventh Annual Communication Networks and Services Research Conference
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Reliable transport protocols have traditionally been designed to perform end-to-end error control transparently to the intermediate nodes (e.g., TCP). However, the resource constraints featured by Wireless Sensor Network (WSN) require a different paradigm where intermediate nodes are able to cache packets, retransmitting them on-demand in order to avoid incurring on costly end-to-end retransmissions. This paper presents an analytical model of end-to-end delivery cost for WSN reliable transport with intermediate caching. The model calculates the cost as the total number of physical layer transmissions using a probabilistic formulation that has been validated through network simulation. Although the model is based on a specific transport protocol (DTSN), the addressed mechanisms are more generic, allowing it to be easily adapted to other WSN transport protocols that also feature intermediate caching. Numerical results confirm the improved efficiency introduced by a transport layer with intermediate caching in comparison with end-to-end approaches that are based exclusively on MAC layer reliability. Different cache partitioning policies were tested, and it is shown that cache partitioning policies should take into account the network conditions experienced by concurrent flows, namely the status of the radio links and the flow lengths.