1. a Underground Communications Research Laboratory, UQAT, Val d'or, Canada, Department of Computer Science and Engineering, UQO, Gatineau, Canada;, Email: Ismail.Ben-Mabrouk@uqat.ca
2. b Underground Communications Research Laboratory, UQAT, Val d'or, Canada, Department of Computer Science and Engineering, UQO, Gatineau, Canada
3. c Underground Communications Research Laboratory, UQAT, Val d'or, Canada
4. d Communications Research Centre Canada, CRC, Ottawa, Canada