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CLC number: TN929.5
On-line Access: 2017-06-30
Received: 2017-01-15
Revision Accepted: 2017-04-06
Crosschecked: 2017-06-05
Cited: 1
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Interference coordination in full-duplex HetNet with large-scale antenna arrays
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Zhao-yang Zhang, Wei Lyu. Interference coordination in full-duplex HetNet with large-scale antenna arrays[J]. Frontiers of Information Technology & Electronic Engineering, 2017, 18(6): 830-840.
@article{title="Interference coordination in full-duplex HetNet with large-scale antenna arrays",
author="Zhao-yang Zhang, Wei Lyu",
journal="Frontiers of Information Technology & Electronic Engineering",
volume="18",
number="6",
pages="830-840",
year="2017",
publisher="Zhejiang University Press & Springer",
doi="10.1631/FITEE.1700047"
}
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Abstract: Massive multiple-input multiple-output (MIMO), small cell, and full-duplex are promising techniques for future 5G communication systems, where interference has become the most challenging issue to be addressed. In this paper, we provide an interference coordination framework for a two-tier heterogeneous network (HetNet) that consists of a massive-MIMO enabled macro-cell base station (MBS) and a number of full-duplex small-cell base stations (SBSs). To suppress the interferences and maximize the throughput, the full-duplex mode of each SBS at the wireless backhaul link (i.e., in-band or out-of-band), which has a different impact on the interference pattern, should be carefully selected. To address this problem, we propose two centralized algorithms, a genetic algorithm (GEA) and a greedy algorithm (GRA). To sufficiently reduce the computational overhead of the MBS, a distributed graph coloring algorithm (DGCA) based on price is further proposed. Numerical results demonstrate that the proposed algorithms significantly improve the system throughput.
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