“ coda” in INFCOR: Banca di dati di a lingua corsaīorrowed from Italian coda.Tinyos homepage.Available from http//:webs.cs./tos.From Vulgar Latin cōda, from Latin cauda.IEEE Transactions on Mobile Computing 1(3):192-207, July-September 2002. Supporting service differentiation for real-time and best effort traffic in stateless wireless ad hoc networks (swan). ![]() of the 21st International Annual Joint Conference of the IEEE Computer and Communications Societies (Infocom 2002), pages 1567-1576. ![]() An energy efficient mac protocol for wireless sensor networks. of the 7th Annual International Conference on Mobile Computing and Networking (Mobicom 2001), pages 70-84, July 2001. Geography-informed energy conservation for ad hoc routing. of the 7th Annual International Conference on Mobile Computing and Networking (Mobicom 2001), pages 221-235,July 2001. A transmission control scheme for media access in sensor networks. of First ACM International Workshop on Wireless Sensor Networks and Applications (WSNA 2002), pages 1-11.Atlanta, September 2002. Psfq: a reliable transport protocol for wireless sensor networks. of First ACM International Workshop on Wireless Sensor Networks and Applications (WSNA 2002), pages 49-58. Infrastructure tradeoffs for sensor networks. In Proceedings of SPIE 2001 Denver, August 2001. Reliable on-demand multicast routing with congestion control in wireless ad hoc networks. of the 5th Annual International Conference on Mobile Computing and Networking (Mobicom 1999). Wtcp: A reliable transport protocol for wireless wide-area networks. of the 4th ACM Symposium on Mobile Ad Hoc Networking & Computing (MobiHoc 2003), pages 177-188. Event-to-sin reliable transport in wireless sensor networks. Wireless integrated network sensors.Communications of the ACM 43(5):51-58, May 2000. of the Seventh Annual International Conference on Mobile Computing and Networking pages 61-69,July 2001. of the 6th Annual International Conference on Mobile Computing and Networking (Mobicom 2000), pages 56-67,August 2000. Directed diffusion: A scalable and robust communication paradigm for sensor networks. Support for Programming Languages and Operating Systems pages 93-104,November 2000. System arthitecture directions for network sensors.In Proc. Culler.Mica: A wireless platform for deeply embedded networks. of the 5th Annual International Conference on Mobile Computing and Networking (Mobicom 1999), pages 174-185,1999. Adaptive protocols for information dissemination in wireless sensor networks. of the 7th Annual International Conference on Mobile Computing and Networking (Mobicom 2001), pages 85-96, July 2001. ![]() An energy efficient coordination algorithm for topology maintenance in ad hoc wireless networks.In Proc. DATA NETWORKS, second edition Prentice Hall, Upper Saddle River, New Jersey,1992. We also demonstrate that CODA is capable of responding to a number of congestion scenarios that we believe will be prevalent as the deployment of these networks accelerates. Simulation results indicate that CODA significantly improves the performance of data dissemination applications such as directed diffusion by mitigating hotspots, and reducing the energy tax with low fidelity penalty on sensing applications. We discuss the performance benefits and practical engineering challenges of implementing CODA in an experimental sensor network testbed based on Berkeley motes using CSMA. We define two important performance metrics (i.e., energy tax and fidelity penalty) to evaluate the impact of CODA on the performance of sensing applications. We present the detailed design, implementation, and evaluation of CODA using simulation and experimentation. To address this challenge we propose an energy efficient congestion control scheme for sensor networks called CODA (COngestion Detection and Avoidance) that comprises three mechanisms: (i) receiver-based congestion detection (ii) open-loop hop-by-hop backpressure and (iii) closed-loop multi-source regulation. It is during these periods of event impulses that the likelihood of congestion is greatest and the information in transit of most importance to users. The transport of event impulses is likely to lead to varying degrees of congestion in the network depending on the sensing application. Event-driven sensor networks operate under an idle or light load and then suddenly become active in response to a detected or monitored event.
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