Nonlinear Precoding for XOR Physical Layer Network Coding in Bi-Directional MIMO Relay Systems

Lengchi CAO; Satoshi DENNO

doi:10.1587/transcom.2016EBP3236

Nonlinear Precoding for XOR Physical Layer Network Coding in Bi-Directional MIMO Relay Systems

Lengchi CAO, Satoshi DENNO

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This paper proposes novel nonlinear precoding for XOR-physical layer network coding (XOR-PNC) to improve the performance of bi-directional MIMO relay systems. The proposed precoder comprises a pre-equalizer and a nonlinear filter, which we also propose in the paper. We theoretically analyze the performance of the XOR-PNC with the proposed nonlinear precoding. As a result, it is shown that the proposed pre-equalizer improves the distribution of the received signals at relays, while the nonlinear precoder not only improves the transmission power efficiency but also simplifies the receiver at the relays. The performance is confirmed by computer simulation. The XOR-PNC with the proposed precoding achieves almost the lower bound in BER performance, which is much better than the amplify-and-forward physical layer network coding (AF-PNC).

Publication: IEICE TRANSACTIONS on Communications Vol.E100-B No.3 pp.440-448

Publication Date: 2017/03/01

Publicized: 2016/09/20

Online ISSN: 1745-1345

DOI: 10.1587/transcom.2016EBP3236

Type of Manuscript: PAPER

Category: Wireless Communication Technologies

Authors

Lengchi CAO
Okayama University
Satoshi DENNO
Okayama University

Keyword

physical layer network coding (PNC), nonlinear precoding, pre-equalizer, transmission power, relay

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Lengchi CAO, Satoshi DENNO, "Nonlinear Precoding for XOR Physical Layer Network Coding in Bi-Directional MIMO Relay Systems" in IEICE TRANSACTIONS on Communications, vol. E100-B, no. 3, pp. 440-448, March 2017, doi: 10.1587/transcom.2016EBP3236.
Abstract: This paper proposes novel nonlinear precoding for XOR-physical layer network coding (XOR-PNC) to improve the performance of bi-directional MIMO relay systems. The proposed precoder comprises a pre-equalizer and a nonlinear filter, which we also propose in the paper. We theoretically analyze the performance of the XOR-PNC with the proposed nonlinear precoding. As a result, it is shown that the proposed pre-equalizer improves the distribution of the received signals at relays, while the nonlinear precoder not only improves the transmission power efficiency but also simplifies the receiver at the relays. The performance is confirmed by computer simulation. The XOR-PNC with the proposed precoding achieves almost the lower bound in BER performance, which is much better than the amplify-and-forward physical layer network coding (AF-PNC).
URL: https://globals.ieice.org/en_transactions/communications/10.1587/transcom.2016EBP3236/_p

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@ARTICLE{e100-b_3_440,
author={Lengchi CAO, Satoshi DENNO, },
journal={IEICE TRANSACTIONS on Communications},
title={Nonlinear Precoding for XOR Physical Layer Network Coding in Bi-Directional MIMO Relay Systems},
year={2017},
volume={E100-B},
number={3},
pages={440-448},
abstract={This paper proposes novel nonlinear precoding for XOR-physical layer network coding (XOR-PNC) to improve the performance of bi-directional MIMO relay systems. The proposed precoder comprises a pre-equalizer and a nonlinear filter, which we also propose in the paper. We theoretically analyze the performance of the XOR-PNC with the proposed nonlinear precoding. As a result, it is shown that the proposed pre-equalizer improves the distribution of the received signals at relays, while the nonlinear precoder not only improves the transmission power efficiency but also simplifies the receiver at the relays. The performance is confirmed by computer simulation. The XOR-PNC with the proposed precoding achieves almost the lower bound in BER performance, which is much better than the amplify-and-forward physical layer network coding (AF-PNC).},
keywords={},
doi={10.1587/transcom.2016EBP3236},
ISSN={1745-1345},
month={March},}

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TY - JOUR
TI - Nonlinear Precoding for XOR Physical Layer Network Coding in Bi-Directional MIMO Relay Systems
T2 - IEICE TRANSACTIONS on Communications
SP - 440
EP - 448
AU - Lengchi CAO
AU - Satoshi DENNO
PY - 2017
DO - 10.1587/transcom.2016EBP3236
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E100-B
IS - 3
JA - IEICE TRANSACTIONS on Communications
Y1 - March 2017
AB - This paper proposes novel nonlinear precoding for XOR-physical layer network coding (XOR-PNC) to improve the performance of bi-directional MIMO relay systems. The proposed precoder comprises a pre-equalizer and a nonlinear filter, which we also propose in the paper. We theoretically analyze the performance of the XOR-PNC with the proposed nonlinear precoding. As a result, it is shown that the proposed pre-equalizer improves the distribution of the received signals at relays, while the nonlinear precoder not only improves the transmission power efficiency but also simplifies the receiver at the relays. The performance is confirmed by computer simulation. The XOR-PNC with the proposed precoding achieves almost the lower bound in BER performance, which is much better than the amplify-and-forward physical layer network coding (AF-PNC).
ER -