An Evaluation of Future Mobile Networks Backhaul Options

Mobile networks and services have grown dramatically since digital networks were introduced in the early nineties. Now operators want to provide broadband services over the Internet to mobile and wireless users. The pressure on the transport network will increase dramatically, and more cost effective solutions for the backhaul are urgently needed. This includes both physical layer and higher protocol levels of the network. This paper addresses backhaul transport layer issues from an operator's view. It addresses the most promising solutions, looks at emerging technology aspects, and provides cost estimates. The work has been performed within the Telenor Grouppsilas COmmoN TEchnology and STrategy (CONTEST) program.