IEICE TRANSACTIONS on Communications
Bit Error Rate and Power Allocation of Soft-Decision-and-Forward Cooperative Networks
Summary :
In this paper, the performance of the soft-decision-and-forward (SDF) protocol in the cooperative communication network with one source, one relay, and one destination, where each node has two transmit and receive antennas, is analyzed in terms of the bit error rate (BER) obtained from the pairwise error probability (PEP). Using the moment generating function and Q-function approximation, the PEP of SDF protocol is calculated and we confirm that the SDF with two antennas achieves the full diversity order. For the slow-varying Rayleigh fading channel, the optimal power allocation ratio can be determined so as to minimize the average PEP (or BER). Due to the difficulty of deriving the optimal value analytically, an alternative strategy of maximizing the product signal-to-noise ratio (SNR) of direct and relay links, which we call the suboptimal power allocation, is considered. Through a numerical analysis, we show that the performance gap between the suboptimal and optimal power allocation strategies is negligible in the high SNR region.
- Publication
- IEICE TRANSACTIONS on Communications Vol.E94-B No.1 pp.234-242
- Publication Date
- 2011/01/01
- Publicized
- Online ISSN
- 1745-1345
- DOI
- 10.1587/transcom.E94.B.234
- Type of Manuscript
- PAPER
- Category
- Wireless Communication Technologies
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Kyoung-Young SONG, Jong-Seon NO, Habong CHUNG, "Bit Error Rate and Power Allocation of Soft-Decision-and-Forward Cooperative Networks" in IEICE TRANSACTIONS on Communications,
vol. E94-B, no. 1, pp. 234-242, January 2011, doi: 10.1587/transcom.E94.B.234.
Abstract: In this paper, the performance of the soft-decision-and-forward (SDF) protocol in the cooperative communication network with one source, one relay, and one destination, where each node has two transmit and receive antennas, is analyzed in terms of the bit error rate (BER) obtained from the pairwise error probability (PEP). Using the moment generating function and Q-function approximation, the PEP of SDF protocol is calculated and we confirm that the SDF with two antennas achieves the full diversity order. For the slow-varying Rayleigh fading channel, the optimal power allocation ratio can be determined so as to minimize the average PEP (or BER). Due to the difficulty of deriving the optimal value analytically, an alternative strategy of maximizing the product signal-to-noise ratio (SNR) of direct and relay links, which we call the suboptimal power allocation, is considered. Through a numerical analysis, we show that the performance gap between the suboptimal and optimal power allocation strategies is negligible in the high SNR region.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.E94.B.234/_p
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@ARTICLE{e94-b_1_234,
author={Kyoung-Young SONG, Jong-Seon NO, Habong CHUNG, },
journal={IEICE TRANSACTIONS on Communications},
title={Bit Error Rate and Power Allocation of Soft-Decision-and-Forward Cooperative Networks},
year={2011},
volume={E94-B},
number={1},
pages={234-242},
abstract={In this paper, the performance of the soft-decision-and-forward (SDF) protocol in the cooperative communication network with one source, one relay, and one destination, where each node has two transmit and receive antennas, is analyzed in terms of the bit error rate (BER) obtained from the pairwise error probability (PEP). Using the moment generating function and Q-function approximation, the PEP of SDF protocol is calculated and we confirm that the SDF with two antennas achieves the full diversity order. For the slow-varying Rayleigh fading channel, the optimal power allocation ratio can be determined so as to minimize the average PEP (or BER). Due to the difficulty of deriving the optimal value analytically, an alternative strategy of maximizing the product signal-to-noise ratio (SNR) of direct and relay links, which we call the suboptimal power allocation, is considered. Through a numerical analysis, we show that the performance gap between the suboptimal and optimal power allocation strategies is negligible in the high SNR region.},
keywords={},
doi={10.1587/transcom.E94.B.234},
ISSN={1745-1345},
month={January},}
Copy
TY - JOUR
TI - Bit Error Rate and Power Allocation of Soft-Decision-and-Forward Cooperative Networks
T2 - IEICE TRANSACTIONS on Communications
SP - 234
EP - 242
AU - Kyoung-Young SONG
AU - Jong-Seon NO
AU - Habong CHUNG
PY - 2011
DO - 10.1587/transcom.E94.B.234
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E94-B
IS - 1
JA - IEICE TRANSACTIONS on Communications
Y1 - January 2011
AB - In this paper, the performance of the soft-decision-and-forward (SDF) protocol in the cooperative communication network with one source, one relay, and one destination, where each node has two transmit and receive antennas, is analyzed in terms of the bit error rate (BER) obtained from the pairwise error probability (PEP). Using the moment generating function and Q-function approximation, the PEP of SDF protocol is calculated and we confirm that the SDF with two antennas achieves the full diversity order. For the slow-varying Rayleigh fading channel, the optimal power allocation ratio can be determined so as to minimize the average PEP (or BER). Due to the difficulty of deriving the optimal value analytically, an alternative strategy of maximizing the product signal-to-noise ratio (SNR) of direct and relay links, which we call the suboptimal power allocation, is considered. Through a numerical analysis, we show that the performance gap between the suboptimal and optimal power allocation strategies is negligible in the high SNR region.
ER -
English
