Power Allocation and Performance Analysis for Incremental-Selective Decode-and-Forward Cooperative Communications over Nakagami-<I>m</I> Fading Channels

Rouhollah AGHAJANI; Reza SAADAT; Mohammad Reza AREF

doi:10.1587/transcom.E96.B.1531

Power Allocation and Performance Analysis for Incremental-Selective Decode-and-Forward Cooperative Communications over Nakagami-m Fading Channels

Rouhollah AGHAJANI, Reza SAADAT, Mohammad Reza AREF

Full Text Views

0

Share
Cite this

Summary :

The focus of this study is the performance of the relaying network with incremental selective decode-and-forward (ISDF) protocol in non-selective slow Nakagami-m fading channels. To enhance bandwidth efficiency, when the direct transmission is not successful the relay is used to retransmit a clean copy of the source signal. The proposed protocol achieves a significant reduction in the power consumption and an improvement in performance compared to the fixed decode-and-forward (DF). The exact symbol error rate (SER) of M-PSK modulation for the ISDF protocol over general fading channels is derived. However, as the exact SER analysis is very complicated, we provide an approximated SER expression. Based on this approximation, we provide an optimum power allocation coefficient where the aggregate transmit power constraint is imposed on the source and the relay. Our results show that at least 50% of total power must be used by the direct link, and the remaining may be used by the relay. Furthermore, power allocation in this protocol is independent of the quality of the source-destination channel and modulation constellation size. Numerical results show that the ISDF protocol can reduce the average transmit power with respect to the fixed DF protocol.

Publication: IEICE TRANSACTIONS on Communications Vol.E96-B No.6 pp.1531-1539

Publication Date: 2013/06/01

Publicized

Online ISSN: 1745-1345

DOI: 10.1587/transcom.E96.B.1531

Type of Manuscript: PAPER

Category: Wireless Communication Technologies

Authors

Rouhollah AGHAJANI
  Yazd University
Reza SAADAT
  Yazd University
Mohammad Reza AREF
  Sharif University of Technology

Keyword

incremental selective decode-and-forward, symbol error rate, Rayleigh fading

Cite this

Copy

Rouhollah AGHAJANI, Reza SAADAT, Mohammad Reza AREF, "Power Allocation and Performance Analysis for Incremental-Selective Decode-and-Forward Cooperative Communications over Nakagami-m Fading Channels" in IEICE TRANSACTIONS on Communications, vol. E96-B, no. 6, pp. 1531-1539, June 2013, doi: 10.1587/transcom.E96.B.1531.
Abstract: The focus of this study is the performance of the relaying network with incremental selective decode-and-forward (ISDF) protocol in non-selective slow Nakagami-m fading channels. To enhance bandwidth efficiency, when the direct transmission is not successful the relay is used to retransmit a clean copy of the source signal. The proposed protocol achieves a significant reduction in the power consumption and an improvement in performance compared to the fixed decode-and-forward (DF). The exact symbol error rate (SER) of M-PSK modulation for the ISDF protocol over general fading channels is derived. However, as the exact SER analysis is very complicated, we provide an approximated SER expression. Based on this approximation, we provide an optimum power allocation coefficient where the aggregate transmit power constraint is imposed on the source and the relay. Our results show that at least 50% of total power must be used by the direct link, and the remaining may be used by the relay. Furthermore, power allocation in this protocol is independent of the quality of the source-destination channel and modulation constellation size. Numerical results show that the ISDF protocol can reduce the average transmit power with respect to the fixed DF protocol.
URL: https://globals.ieice.org/en_transactions/communications/10.1587/transcom.E96.B.1531/_p

Copy

@ARTICLE{e96-b_6_1531,
author={Rouhollah AGHAJANI, Reza SAADAT, Mohammad Reza AREF, },
journal={IEICE TRANSACTIONS on Communications},
title={Power Allocation and Performance Analysis for Incremental-Selective Decode-and-Forward Cooperative Communications over Nakagami-m Fading Channels},
year={2013},
volume={E96-B},
number={6},
pages={1531-1539},
abstract={The focus of this study is the performance of the relaying network with incremental selective decode-and-forward (ISDF) protocol in non-selective slow Nakagami-m fading channels. To enhance bandwidth efficiency, when the direct transmission is not successful the relay is used to retransmit a clean copy of the source signal. The proposed protocol achieves a significant reduction in the power consumption and an improvement in performance compared to the fixed decode-and-forward (DF). The exact symbol error rate (SER) of M-PSK modulation for the ISDF protocol over general fading channels is derived. However, as the exact SER analysis is very complicated, we provide an approximated SER expression. Based on this approximation, we provide an optimum power allocation coefficient where the aggregate transmit power constraint is imposed on the source and the relay. Our results show that at least 50% of total power must be used by the direct link, and the remaining may be used by the relay. Furthermore, power allocation in this protocol is independent of the quality of the source-destination channel and modulation constellation size. Numerical results show that the ISDF protocol can reduce the average transmit power with respect to the fixed DF protocol.},
keywords={},
doi={10.1587/transcom.E96.B.1531},
ISSN={1745-1345},
month={June},}

Copy

TY - JOUR
TI - Power Allocation and Performance Analysis for Incremental-Selective Decode-and-Forward Cooperative Communications over Nakagami-m Fading Channels
T2 - IEICE TRANSACTIONS on Communications
SP - 1531
EP - 1539
AU - Rouhollah AGHAJANI
AU - Reza SAADAT
AU - Mohammad Reza AREF
PY - 2013
DO - 10.1587/transcom.E96.B.1531
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E96-B
IS - 6
JA - IEICE TRANSACTIONS on Communications
Y1 - June 2013
AB - The focus of this study is the performance of the relaying network with incremental selective decode-and-forward (ISDF) protocol in non-selective slow Nakagami-m fading channels. To enhance bandwidth efficiency, when the direct transmission is not successful the relay is used to retransmit a clean copy of the source signal. The proposed protocol achieves a significant reduction in the power consumption and an improvement in performance compared to the fixed decode-and-forward (DF). The exact symbol error rate (SER) of M-PSK modulation for the ISDF protocol over general fading channels is derived. However, as the exact SER analysis is very complicated, we provide an approximated SER expression. Based on this approximation, we provide an optimum power allocation coefficient where the aggregate transmit power constraint is imposed on the source and the relay. Our results show that at least 50% of total power must be used by the direct link, and the remaining may be used by the relay. Furthermore, power allocation in this protocol is independent of the quality of the source-destination channel and modulation constellation size. Numerical results show that the ISDF protocol can reduce the average transmit power with respect to the fixed DF protocol.
ER -