Effective erasure codes for reliable computer communication protocols
ACM SIGCOMM Computer Communication Review
PSFQ: a reliable transport protocol for wireless sensor networks
WSNA '02 Proceedings of the 1st ACM international workshop on Wireless sensor networks and applications
Link-level measurements from an 802.11b mesh network
Proceedings of the 2004 conference on Applications, technologies, architectures, and protocols for computer communications
Understanding link-layer behavior in highly congested IEEE 802.11b wireless networks
Proceedings of the 2005 ACM SIGCOMM workshop on Experimental approaches to wireless network design and analysis
Improving loss resilience with multi-radio diversity in wireless networks
Proceedings of the 11th annual international conference on Mobile computing and networking
Packet combining in sensor networks
Proceedings of the 3rd international conference on Embedded networked sensor systems
Datalink streaming in wireless sensor networks
Proceedings of the 4th international conference on Embedded networked sensor systems
A fragment-based retransmission scheme with QoS considerations for wireless networks
IWCMC '07 Proceedings of the 2007 international conference on Wireless communications and mobile computing
PPR: partial packet recovery for wireless networks
Proceedings of the 2007 conference on Applications, technologies, architectures, and protocols for computer communications
Beyond the bits: cooperative packet recovery using physical layer information
Proceedings of the 13th annual ACM international conference on Mobile computing and networking
Cooperative wireless communications: a cross-layer approach
IEEE Wireless Communications
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In Wireless Sensor Networks (WSNs), the Bit-Error-Rate (BER) is so high that the receiver requests retransmission frequently. Packet recovery is an important technology to improve transmission performance. In this paper, we propose BPR, a Bit-level Packet Recovery scheme in WSNs. In BPR, if a packet is corrupted for two times, instead of request the whole packet, the receiver compares these two corrupted copies of the packets and determines which bit(s) should be retransmitted. BPR sits between MAC sub-layer and Logical Link Control (LLC) sub-layer and can be compatible with most of current packet recovery schemes and is very easy to implement. The analysis shows that BPR can yield a gain of 364% compared with Seda[1] and even more with 802.11 in high BER environments.