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 dei.isep.ipp.pt

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

E-mail: pmc at di.uminho.pt

Abstract
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