Error control systems for digital communication and storage
Error control systems for digital communication and storage
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
Fundamentals of wireless communication
Fundamentals of wireless communication
Robust rate adaptation for 802.11 wireless networks
Proceedings of the 12th annual international conference on Mobile computing and networking
Datalink streaming in wireless sensor networks
Proceedings of the 4th international conference on Embedded networked sensor systems
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
Efficient channel-aware rate adaptation in dynamic environments
Proceedings of the 6th international conference on Mobile systems, applications, and services
Symbol-level network coding for wireless mesh networks
Proceedings of the ACM SIGCOMM 2008 conference on Data communication
ZipTx: Harnessing Partial Packets in 802.11 Networks
Proceedings of the 14th ACM international conference on Mobile computing and networking
Design, implementation and evaluation of an efficient opportunistic retransmission protocol
Proceedings of the 15th annual international conference on Mobile computing and networking
Efficient error estimating coding: feasibility and applications
Proceedings of the ACM SIGCOMM 2010 conference
Predictable 802.11 packet delivery from wireless channel measurements
Proceedings of the ACM SIGCOMM 2010 conference
Maranello: practical partial packet recovery for 802.11
NSDI'10 Proceedings of the 7th USENIX conference on Networked systems design and implementation
LEAD: leveraging protocol signatures for improving wireless link performance
Proceeding of the 11th annual international conference on Mobile systems, applications, and services
Practical opportunistic routing in high-speed multi-rate wireless mesh networks
Proceedings of the fourteenth ACM international symposium on Mobile ad hoc networking and computing
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In wireless LANs, partial packets are often received which usually contain only a few errors. According to the current 802.11 standard, such packets have to be retransmitted. Much effort has been invested recently in repairing such packets without retransmitting the entire packet, e.g., by using error correction (EC) code or retransmitting only the corrupted blocks. In this paper, we revisit this problem, and propose Unite, a framework for more efficient partial packet recovery. Unite is motivated by two key observations. First, the two repair methods, i.e., the EC-based and block-based, are not mutually exclusive and can be combined to achieve higher performance. Second, the recently introduced error estimators can be utilized to determine the optimal repair method depending on the condition of each partial packet. The combined method should achieve better performance than each individual method; in addition, it should remain low in complexity because the EC-based and block-based method are both simple in nature. Unite uses AMPS, a recently proposed estimator, for error estimation. We implement Unite on the Madwifi open source driver, and our experiments show that Unite outperforms other recovery schemes.