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Self-Interference Suppression for the Full-Duplex Wireless Communication with Large-Scale Antenna

In this letter, we proposed a shared-antenna full-duplex massive MIMO model for the multiuser MIMO system. This model exploits a single antenna array at the base station (BS) to transmit and receive the signals simultaneously. It has the merits of both the full-duplex system and the time-division duplex (TDD) massive MIMO system, i.e., the high spectral efficiency and the channel reciprocity. We focus on the zero-forcing (ZF) and the maximal-ratio transmission/maximal-ratio combining (MRT/MRC) linear processing methods, which are commonly used in the massive MIMO system. As the main finding, we prove that the self-interference (SI) in a shared-antenna full-duplex massive MU-MIMO system can be suppressed in the completely dependent uplink and downlink channels when the number of antennas becomes large enough.

preprint2015arXivOpen access
Pengbo XingJu LiuChao ZhaiXinhua WangLina Zheng
Networking and Internet Architecturemath.ITInformation Theory
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Open access5 authors3 topics
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Pengbo XingJu LiuChao ZhaiXinhua WangLina Zheng

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