1. NICT,Tokyo,Japan,184-8795
2. Nokia Bell Labs,Murray Hill,NJ,USA,07974
3. The University of Queensland,School of Inf. Technol. and Elec. Eng.,Brisbane,QLD,Australia,4072
4. Prysmian Group,Parc des Industries Artois Flandres,Haisnes,France,62092
5. Prysmian Group,Eindhoven,CA,The Netherlands,5651
6. University of Campinas,School of Electrical and Computer Engineering,Campinas,BR,13083-852