Adaptive Decode-and-Forward Cooperative Networks with Limited Feedback

Ha Nguyen VU; Hyung Yun KONG

doi:10.1587/transcom.E93.B.415

Adaptive Decode-and-Forward Cooperative Networks with Limited Feedback

Ha Nguyen VU, Hyung Yun KONG

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We analyze the performance of an adaptive communication scheme in which by employing limited feedback, the source will decide to transmit signal to the destination either by the direct link or by the direct and relaying links. Specifically, by using the instantaneous SNR as the metric, if the S-D link is better, the source will transmit to destination directly. Otherwise, the two-phase transmission mode will be triggered in which source cooperates with the relay or transmits twice within two time slots based on the quality of the received signal at the relay. Initially, the spectral efficiency is derived by calculating the probabilities of direct transmission and two-phase transmission mode. Subsequently, the BER performance for the adaptive cooperation schemes is analyzed by considering the BER routines of two events: the source transmits the signal alone or cooperates with the relay. Also, the optimum power allocation is studied based on the BER result. Finally, Monte-Carlo simulation results are presented to confirm the performance enhancement offered by the proposed scheme.

Publication: IEICE TRANSACTIONS on Communications Vol.E93-B No.2 pp.415-418

Publication Date: 2010/02/01

Publicized

Online ISSN: 1745-1345

DOI: 10.1587/transcom.E93.B.415

Type of Manuscript: LETTER

Category: Wireless Communication Technologies

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Ha Nguyen VU, Hyung Yun KONG, "Adaptive Decode-and-Forward Cooperative Networks with Limited Feedback" in IEICE TRANSACTIONS on Communications, vol. E93-B, no. 2, pp. 415-418, February 2010, doi: 10.1587/transcom.E93.B.415.
Abstract: We analyze the performance of an adaptive communication scheme in which by employing limited feedback, the source will decide to transmit signal to the destination either by the direct link or by the direct and relaying links. Specifically, by using the instantaneous SNR as the metric, if the S-D link is better, the source will transmit to destination directly. Otherwise, the two-phase transmission mode will be triggered in which source cooperates with the relay or transmits twice within two time slots based on the quality of the received signal at the relay. Initially, the spectral efficiency is derived by calculating the probabilities of direct transmission and two-phase transmission mode. Subsequently, the BER performance for the adaptive cooperation schemes is analyzed by considering the BER routines of two events: the source transmits the signal alone or cooperates with the relay. Also, the optimum power allocation is studied based on the BER result. Finally, Monte-Carlo simulation results are presented to confirm the performance enhancement offered by the proposed scheme.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.E93.B.415/_p

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@ARTICLE{e93-b_2_415,
author={Ha Nguyen VU, Hyung Yun KONG, },
journal={IEICE TRANSACTIONS on Communications},
title={Adaptive Decode-and-Forward Cooperative Networks with Limited Feedback},
year={2010},
volume={E93-B},
number={2},
pages={415-418},
abstract={We analyze the performance of an adaptive communication scheme in which by employing limited feedback, the source will decide to transmit signal to the destination either by the direct link or by the direct and relaying links. Specifically, by using the instantaneous SNR as the metric, if the S-D link is better, the source will transmit to destination directly. Otherwise, the two-phase transmission mode will be triggered in which source cooperates with the relay or transmits twice within two time slots based on the quality of the received signal at the relay. Initially, the spectral efficiency is derived by calculating the probabilities of direct transmission and two-phase transmission mode. Subsequently, the BER performance for the adaptive cooperation schemes is analyzed by considering the BER routines of two events: the source transmits the signal alone or cooperates with the relay. Also, the optimum power allocation is studied based on the BER result. Finally, Monte-Carlo simulation results are presented to confirm the performance enhancement offered by the proposed scheme.},
keywords={},
doi={10.1587/transcom.E93.B.415},
ISSN={1745-1345},
month={February},}

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TY - JOUR
TI - Adaptive Decode-and-Forward Cooperative Networks with Limited Feedback
T2 - IEICE TRANSACTIONS on Communications
SP - 415
EP - 418
AU - Ha Nguyen VU
AU - Hyung Yun KONG
PY - 2010
DO - 10.1587/transcom.E93.B.415
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E93-B
IS - 2
JA - IEICE TRANSACTIONS on Communications
Y1 - February 2010
AB - We analyze the performance of an adaptive communication scheme in which by employing limited feedback, the source will decide to transmit signal to the destination either by the direct link or by the direct and relaying links. Specifically, by using the instantaneous SNR as the metric, if the S-D link is better, the source will transmit to destination directly. Otherwise, the two-phase transmission mode will be triggered in which source cooperates with the relay or transmits twice within two time slots based on the quality of the received signal at the relay. Initially, the spectral efficiency is derived by calculating the probabilities of direct transmission and two-phase transmission mode. Subsequently, the BER performance for the adaptive cooperation schemes is analyzed by considering the BER routines of two events: the source transmits the signal alone or cooperates with the relay. Also, the optimum power allocation is studied based on the BER result. Finally, Monte-Carlo simulation results are presented to confirm the performance enhancement offered by the proposed scheme.
ER -