18. Authors' Addresses

Mikael Degermark Department of Computer Science and Electrical Engineering Lulea University of Technology SE-971 87 Lulea, Sweden

Phone: +46 920 91188 Fax: +46 920 72831 Mobile: +46 70 833 8933 EMail: [email protected]

Bjorn Nordgren CDT/Telia Research AB Aurorum 6 S-977 75 Lulea, Sweden

Phone: +46 920 75400 Fax: +46 920 75490 EMail: [email protected], [email protected]

Stephen Pink Department of Computer Science and Electrical Engineering Lulea University of Technology SE-971 87 Lulea, Sweden

Phone: +46 920 752 29 Fax: +46 920 728 31 Mobile: +46 70 532 0007 EMail: [email protected]