The 4G/5G paradigm offers User Equipment (UE) simultaneous connectivity to aplurality of wireless Access Points (APs). We consider a UE communicating withits destination through multiple uplinks operating on orthogonal wirelesschannels with unequal bandwidth. The APs are connected via a tree-like backhaulnetwork with destination at the root and non-ideal link capacities. We developa power allocation scheme that achieves a near-optimal rate without explicitknowledge of the backhaul network topology at transmitter side. The proposedalgorithm waterfills a dynamic subset of uplinks using a low-overhead backhaulload feedback.
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