期刊
ICT EXPRESS
卷 8, 期 3, 页码 419-423出版社
ELSEVIER
DOI: 10.1016/j.icte.2021.10.007
关键词
IoT networks; Physical-layer network coding (PNC); Two-way relay channel (TWRC); Bit-error rate (BER); Multiple antennas
资金
- Institute for Information & communications Technology Promotion (IITP) - Korea government (MSIT) [2019-0-00964]
This paper mathematically analyzes the bit-error rate (BER) and diversity order of physical-layer network coding (PNC) scheme in the two-way relay channel (TWRC) with multiple antennas at the relay node. The upper bound of BER at the multiple access (MA) phase and the exact BER performance at the broadcast (BC) phase are derived and validated through computer simulations.
In this paper, we mathematically analyze bit-error rate (BER) and diversity order of physical-layer network coding (PNC) scheme in the two-way relay channel (TWRC) under the assumption of multiple antennas at relay node. We assume the quadrature phase shift keying (QPSK) modulation for simple data transmission in IoT applications, and max-min transmit antenna selection (TAS) scheme in the broadcast (BC) phase for achieving full diversity gain. In particular, we obtain the upper bound of BER at the multiple access (MA) phase, while deriving the exact BER performance at the BC phase. To the best our knowledge, the mathematical analysis in this paper is the first analytical results in the literature. Through computer simulations, the analytical results are validated. (C) 2021 The Authors. Published by Elsevier B.V. on behalf of The Korean Institute of Communications and Information Sciences.
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