Abstract
CSMA is the predominant distributed access protocol for wireless mesh networks. Originally designed for singlehop settings, in multi-hop networks CSMA can exhibit severe performance problems in terms of stability and end-to-end throughput. To ensure a smoother flow of packets, we examine a new scheme referred to as extra back-off (EB) flow control. In this scheme a node remains silent for a certain extra back-off time (imposed on top of the usual back-off time that is part of CSMA) after it has transmitted a packet, so as to give both the downstream and upstream neighbors the opportunity to transmit. EB flow control entails only a small modification to CSMA, preserving its distributed character, yet considerably improving the network performance.
| Original language | English |
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| Title of host publication | Proceedings 8th International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks (WiOpt'10, Avignon, France, May 31-June 4, 2010) |
| Publisher | Institute of Electrical and Electronics Engineers |
| Pages | 122-131 |
| ISBN (Print) | 978-1-4244-7523-0 |
| Publication status | Published - 2010 |