Improving the Reliability of WiDom in a Single Broadcast Domain

Nuno Pereira1, Bjorn Andersson1, Eduardo Tovar1, Paulo Carvalho2

Instituto Politécnico do Porto1
Porto, Portugal
E-mail: {npereira,emt,bandersson} at

Universidade do Minho2
Departamento de Informática
P-4710-057 Braga, Portugal

E-mail: pmc at


WiDom is a previously proposed prioritized medium access control protocol for wireless channels. We present a modification to this protocol in order to improve its reliability. This modification has similarities with cooperative relaying schemes, but, in our protocol, all nodes can relay a carrier wave. The preliminary evaluation shows that, under transmission errors, a significant reduction on the number of failed tournaments can be achieved.

in IEEE SIES 2009, EPFL, Lausanne, Switzerland, July 8-10, 2009