A control-theoretic approach to flow control
SIGCOMM '91 Proceedings of the conference on Communications architecture & protocols
Distributed Algorithms for Unidirectional Networks
SIAM Journal on Computing
A high-throughput path metric for multi-hop wireless routing
Proceedings of the 9th annual international conference on Mobile computing and networking
Understanding packet delivery performance in dense wireless sensor networks
Proceedings of the 1st international conference on Embedded networked sensor systems
Taming the underlying challenges of reliable multihop routing in sensor networks
Proceedings of the 1st international conference on Embedded networked sensor systems
Link-level measurements from an 802.11b mesh network
Proceedings of the 2004 conference on Applications, technologies, architectures, and protocols for computer communications
Comparison of routing metrics for static multi-hop wireless networks
Proceedings of the 2004 conference on Applications, technologies, architectures, and protocols for computer communications
A line in the sand: a wireless sensor network for target detection, classification, and tracking
Computer Networks: The International Journal of Computer and Telecommunications Networking - Special issue: Military communications systems and technologies
Kansei: a testbed for sensing at scale
Proceedings of the 5th international conference on Information processing in sensor networks
On accurate measurement of link quality in multi-hop wireless mesh networks
Proceedings of the 12th annual international conference on Mobile computing and networking
RBP: robust broadcast propagation in wireless networks
Proceedings of the 4th international conference on Embedded networked sensor systems
Understanding the causes of packet delivery success and failure in dense wireless sensor networks
Proceedings of the 4th international conference on Embedded networked sensor systems
DEAL: discover and exploit asymmetric links in dense wireless sensor networks
SECON'09 Proceedings of the 6th Annual IEEE communications society conference on Sensor, Mesh and Ad Hoc Communications and Networks
On link asymmetry and one-way estimation in wireless sensor networks
ACM Transactions on Sensor Networks (TOSN)
Reliable routing algorithm on wireless sensor network
ICACT'10 Proceedings of the 12th international conference on Advanced communication technology
DPLC: dynamic packet length control in wireless sensor networks
INFOCOM'10 Proceedings of the 29th conference on Information communications
Computer Networks: The International Journal of Computer and Telecommunications Networking
Enhanced statistics-based rate adaptation for 802.11 wireless networks
Journal of Network and Computer Applications
Exploiting asymmetric links in a convergecast routing protocol for wireless sensor networks
ADHOC-NOW'12 Proceedings of the 11th international conference on Ad-hoc, Mobile, and Wireless Networks
Data collection in heterogeneous wireless sensor networks
Proceedings of the Asian Internet Engineeering Conference
Asymmetric Geographic Forwarding: Exploiting Link Asymmetry in Location Aware Routing
International Journal of Embedded and Real-Time Communication Systems
Decentralized connectivity maintenance for cooperative control of mobile robotic systems
International Journal of Robotics Research
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A substantial percentage of links in wireless networks, especially low-power ones, is asymmetric. For the low-quality direction of asymmetric links, we observe based on testbed experiments that the reliability of synchronous acknowledgments is considerably higher than that of asynchronous messages. Thus the norm of estimating link quality in both directions via asynchronous beacons such as in ETX-based routing potentially underestimates the link reliability of asymmetric links. This leads us to investigate how to exploit asymmetric links in order to improve network functions such as convergecast routing in sensor networks via one-way link estimation. We propose a new one-way link metric ETF (for the expected number of transmissions over forward links) and present a local procedure for its estimation. We use ETF to identify high reliability forward links and use dynamic retransmission thresholding for error control and observe an improvement inconvergecast routing over ETX. This is quantified with experimental testbed results with respect to reliability, number of transmissions per packet, latency, duplicates and average hops. We also study the comparative performance improvement of ETF over ETX when no special mechanism is employed to discover asymmetric links.