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Interaction engineering: taming of the CSMA by Vinay Kolar; Saquib Razak; Nael B. Abu-Ghazaleh is a scholarly article available to read on EtoBox.

What is Interaction engineering: taming of the CSMA about?

Carrier Sense Multiple Access (CSMA) protocols are unable to effectively arbitrate the medium in multi-hop wireless networks; problems such as hidden and exposed terminals occur frequently leading to collisions, poor performance and unfairness. CSMA networks can be optimized by careful tuning of transceiver parameters, such as transmission power and carrier sensing threshold, to maximize transmission concurrency while minimizing collisions. Existing approaches optimize these parameters by considering only some aspects of CSMA operation (e.g., considering only PHY parameters such as SINR), thus leading to suboptimal solutions. We present a new approach that leverages recent insights into the behavior of CSMA networks. Specifically, this recent work identifies that links interfere only in a few discrete interaction modes at the MAC-layer. Each interaction mode determines how the interacting links interfere with each other and leads to different performance and fairness behavior. The proposed methodology controls the transciever parameters to convert the destructive interactions into constructive ones; we call this approach Interaction Engineering. The global optimization problem is c

Author

Vinay Kolar; Saquib Razak; Nael B. Abu-Ghazaleh

Publisher

ACM

Published

2010

Language

EN