Conference paper Open Access

Traffic adaptive formation of mmWave meshed backhaul networks

Ogawa, Hiroaki; Tran, Gia Khanh; Sakaguchi, Kei; Haustein, Thomas

MmWave meshed network is a promising
architecture for cost-efficient wireless backhaul
of millimeter-wave overlay heterogeneous network
(mmWave overlay HetNet). As user distribution in
practice is time-variant and spatially non-uniform,
mmWave meshed backhaul should be controlled adaptively.
This paper proposes a novel method to control
mmWave meshed backhaul for efficient operation of
mmWave overlay HetNet. Our algorithm is featured by
two functionalities, i.e. backhauling route multiplexing
for overloaded mmWave small cell base stations (SCBSs)
and mmWave SC-BSs’ ON/OFF status switching
for underloaded spot. Considering practical user
distribution, radio backhaul resources should be concentrated
on overloaded mmWave SC-BSs. Inversely,
underloaded mmWave SC-BSs should be deactivated
for saving power. The performance of mmWave meshed
backhaul controlled by the proposed algorithm is evaluated
by system level simulation. Numerical results show
that the proposed algorithm can cope with the locally
intensive traffic, network scalability, and can reduce
energy consumption.

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