Opportunistic Decouple-and-Forward Relaying: Harnessing Distributed Antennas

Jaeyoung LEE; Hyundong SHIN; Jun HEO

doi:10.1587/transcom.E97.B.1148

Opportunistic Decouple-and-Forward Relaying: Harnessing Distributed Antennas

Jaeyoung LEE, Hyundong SHIN, Jun HEO

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In this paper, we consider decouple-and-forward (DCF) relaying, where the relay encodes and amplifies decoupled data using orthogonal space-time block codes (OSTBCs), to achieve the maximum diversity gain of multiple-input multiple-output (MIMO) amplify-and-forward (AF) relaying. Since the channel status of all antennas is generally unknown and time-varying for cooperation in multi-antenna multiple-relay systems, we investigate an opportunistic relaying scheme for DCF relaying to harness distributed antennas and minimize the cooperation overheads by not using the global channel state information (CSI). In addition, for realistic wireless channels which have spatial fading correlation due to closely-spaced antenna configurations and poor scattering environments, we analyze the exact and lower bound on the symbol error probability (SEP) of the opportunistic DCF relaying over spatially correlated MIMO Rayleigh fading channels. Numerical results show that, even in the presence of spatial fading correlation, the proposed opportunistic relaying scheme is efficient and achieves additional performance gain with low overhead.

Publication: IEICE TRANSACTIONS on Communications Vol.E97-B No.6 pp.1148-1156

Publication Date: 2014/06/01

Publicized

Online ISSN: 1745-1345

DOI: 10.1587/transcom.E97.B.1148

Type of Manuscript: PAPER

Category: Wireless Communication Technologies

Authors

Jaeyoung LEE
  Korea University
Hyundong SHIN
  Kyung Hee University
Jun HEO
  Korea University

Keyword

multiple-input multiple-output (MIMO), symbol error probability, orthogonal space-time block codes (OSTBCs), amplify-and-forward (AF) relaying

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Jaeyoung LEE, Hyundong SHIN, Jun HEO, "Opportunistic Decouple-and-Forward Relaying: Harnessing Distributed Antennas" in IEICE TRANSACTIONS on Communications, vol. E97-B, no. 6, pp. 1148-1156, June 2014, doi: 10.1587/transcom.E97.B.1148.
Abstract: In this paper, we consider decouple-and-forward (DCF) relaying, where the relay encodes and amplifies decoupled data using orthogonal space-time block codes (OSTBCs), to achieve the maximum diversity gain of multiple-input multiple-output (MIMO) amplify-and-forward (AF) relaying. Since the channel status of all antennas is generally unknown and time-varying for cooperation in multi-antenna multiple-relay systems, we investigate an opportunistic relaying scheme for DCF relaying to harness distributed antennas and minimize the cooperation overheads by not using the global channel state information (CSI). In addition, for realistic wireless channels which have spatial fading correlation due to closely-spaced antenna configurations and poor scattering environments, we analyze the exact and lower bound on the symbol error probability (SEP) of the opportunistic DCF relaying over spatially correlated MIMO Rayleigh fading channels. Numerical results show that, even in the presence of spatial fading correlation, the proposed opportunistic relaying scheme is efficient and achieves additional performance gain with low overhead.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.E97.B.1148/_p

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@ARTICLE{e97-b_6_1148,
author={Jaeyoung LEE, Hyundong SHIN, Jun HEO, },
journal={IEICE TRANSACTIONS on Communications},
title={Opportunistic Decouple-and-Forward Relaying: Harnessing Distributed Antennas},
year={2014},
volume={E97-B},
number={6},
pages={1148-1156},
abstract={In this paper, we consider decouple-and-forward (DCF) relaying, where the relay encodes and amplifies decoupled data using orthogonal space-time block codes (OSTBCs), to achieve the maximum diversity gain of multiple-input multiple-output (MIMO) amplify-and-forward (AF) relaying. Since the channel status of all antennas is generally unknown and time-varying for cooperation in multi-antenna multiple-relay systems, we investigate an opportunistic relaying scheme for DCF relaying to harness distributed antennas and minimize the cooperation overheads by not using the global channel state information (CSI). In addition, for realistic wireless channels which have spatial fading correlation due to closely-spaced antenna configurations and poor scattering environments, we analyze the exact and lower bound on the symbol error probability (SEP) of the opportunistic DCF relaying over spatially correlated MIMO Rayleigh fading channels. Numerical results show that, even in the presence of spatial fading correlation, the proposed opportunistic relaying scheme is efficient and achieves additional performance gain with low overhead.},
keywords={},
doi={10.1587/transcom.E97.B.1148},
ISSN={1745-1345},
month={June},}

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TY - JOUR
TI - Opportunistic Decouple-and-Forward Relaying: Harnessing Distributed Antennas
T2 - IEICE TRANSACTIONS on Communications
SP - 1148
EP - 1156
AU - Jaeyoung LEE
AU - Hyundong SHIN
AU - Jun HEO
PY - 2014
DO - 10.1587/transcom.E97.B.1148
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E97-B
IS - 6
JA - IEICE TRANSACTIONS on Communications
Y1 - June 2014
AB - In this paper, we consider decouple-and-forward (DCF) relaying, where the relay encodes and amplifies decoupled data using orthogonal space-time block codes (OSTBCs), to achieve the maximum diversity gain of multiple-input multiple-output (MIMO) amplify-and-forward (AF) relaying. Since the channel status of all antennas is generally unknown and time-varying for cooperation in multi-antenna multiple-relay systems, we investigate an opportunistic relaying scheme for DCF relaying to harness distributed antennas and minimize the cooperation overheads by not using the global channel state information (CSI). In addition, for realistic wireless channels which have spatial fading correlation due to closely-spaced antenna configurations and poor scattering environments, we analyze the exact and lower bound on the symbol error probability (SEP) of the opportunistic DCF relaying over spatially correlated MIMO Rayleigh fading channels. Numerical results show that, even in the presence of spatial fading correlation, the proposed opportunistic relaying scheme is efficient and achieves additional performance gain with low overhead.
ER -