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In mobile access networks, Base Station (BS) assignment mechanisms are mainly driven by radio conditions since it is generally assumed that the limiting factor is the air interface. This assumption has been proven to be very reasonable when circuit voice was the dominant service and backhaul capacity provisioning accounting for the peak rate at the BSs was an economically feasible option. However, as more efficient air interface technologies are introduced along with higher data rate services, a growing concern is that the transport part of the mobile network can also represent a bottleneck. In this paper, the authors analyze a BS assignment strategy that simultaneously exploits load balancing in both the radio interface and the transport backhaul links.
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