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Performance Improvement of CSMA/CA for Data Gathering Scenarios in Wireless Sensor Networks

Bilel Nefzi 1 Ye-Qiong Song 1 
1 TRIO - Real time and interoperability
INRIA Lorraine, LORIA - Laboratoire Lorrain de Recherche en Informatique et ses Applications
Abstract : This article addresses the problem of performance degradation of wireless sensor networks for scenarios involving data gathering to a small number of node sinks; as the data travel toward a sink, its neighbor nodes experience high loads and congestion. Using CSMA/CA as the basic access protocol, we implemented CoSenS, a collecting and sending burst scheme, on the top of it to address these issues. The idea of CoSenS is that a router does not retransmit packets as they arrive. Instead, it collects data from its children and other neighbor routers and then sends them into a burst during a period of time that we call transmission period. The performance analysis shows that, as the load increases, our scheme maximizes the throughput and successful transmission rates while minimizing the end-to-end delay compared to CSMA/CA.
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Submitted on : Tuesday, December 7, 2010 - 10:50:58 AM
Last modification on : Friday, February 4, 2022 - 3:24:49 AM


  • HAL Id : inria-00544036, version 1



Bilel Nefzi, Ye-Qiong Song. Performance Improvement of CSMA/CA for Data Gathering Scenarios in Wireless Sensor Networks. The Second International Conference on Communications and Networking ComNet'2010, Nov 2010, Tozeur, Tunisia. ⟨inria-00544036⟩



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