Energy Efficient Power Allocation for Bidirectional Relaying with Imperfect Channel Estimation
A wireless network scenario of bidirectional relaying with imperfect channel side information (CSI) is considered, in which two source nodes intend to exchange information with the help of one relay. The power allocation problem is investigated to minimize the total transmit power subject to constra...
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2013-11-01
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Series: | International Journal of Distributed Sensor Networks |
Online Access: | https://doi.org/10.1155/2013/725459 |
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doaj-6990693cc3b14edd9d773d1964fc9dd52020-11-25T03:24:08ZengSAGE PublishingInternational Journal of Distributed Sensor Networks1550-14772013-11-01910.1155/2013/725459725459Energy Efficient Power Allocation for Bidirectional Relaying with Imperfect Channel EstimationSong Li0Yanjing Sun1Hongli Xu2Zhi Sun3Wenjuan Shi4 School of Information and Electrical Engineering, China University of Mining and Technology, Xuzhou 221113, China School of Information and Electrical Engineering, China University of Mining and Technology, Xuzhou 221113, China Department of Computer Science and Technology, University of Science and Technology of China, Hefei, Anhui 230027, China Department of Electrical Engineering, State University of New York (SUNY) at Buffalo, Buffalo, NY 14260, USA School of Information and Electrical Engineering, China University of Mining and Technology, Xuzhou 221113, ChinaA wireless network scenario of bidirectional relaying with imperfect channel side information (CSI) is considered, in which two source nodes intend to exchange information with the help of one relay. The power allocation problem is investigated to minimize the total transmit power subject to constraints on two source nodes' received signal-to-noise-ratios (SNRs). The best relay that minimizes the total transmit power is selected in a multiple relay network. We also present outage analysis when the proposed power allocation is adopted, and a close-form approximation of outage probability is obtained by shrinking the integral interval. Simulation results show that the total transmit power can be substantially decreased and the outage probability is significantly decreased by the proposed power allocation scheme when two source nodes have different QoS requirement.https://doi.org/10.1155/2013/725459 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Song Li Yanjing Sun Hongli Xu Zhi Sun Wenjuan Shi |
spellingShingle |
Song Li Yanjing Sun Hongli Xu Zhi Sun Wenjuan Shi Energy Efficient Power Allocation for Bidirectional Relaying with Imperfect Channel Estimation International Journal of Distributed Sensor Networks |
author_facet |
Song Li Yanjing Sun Hongli Xu Zhi Sun Wenjuan Shi |
author_sort |
Song Li |
title |
Energy Efficient Power Allocation for Bidirectional Relaying with Imperfect Channel Estimation |
title_short |
Energy Efficient Power Allocation for Bidirectional Relaying with Imperfect Channel Estimation |
title_full |
Energy Efficient Power Allocation for Bidirectional Relaying with Imperfect Channel Estimation |
title_fullStr |
Energy Efficient Power Allocation for Bidirectional Relaying with Imperfect Channel Estimation |
title_full_unstemmed |
Energy Efficient Power Allocation for Bidirectional Relaying with Imperfect Channel Estimation |
title_sort |
energy efficient power allocation for bidirectional relaying with imperfect channel estimation |
publisher |
SAGE Publishing |
series |
International Journal of Distributed Sensor Networks |
issn |
1550-1477 |
publishDate |
2013-11-01 |
description |
A wireless network scenario of bidirectional relaying with imperfect channel side information (CSI) is considered, in which two source nodes intend to exchange information with the help of one relay. The power allocation problem is investigated to minimize the total transmit power subject to constraints on two source nodes' received signal-to-noise-ratios (SNRs). The best relay that minimizes the total transmit power is selected in a multiple relay network. We also present outage analysis when the proposed power allocation is adopted, and a close-form approximation of outage probability is obtained by shrinking the integral interval. Simulation results show that the total transmit power can be substantially decreased and the outage probability is significantly decreased by the proposed power allocation scheme when two source nodes have different QoS requirement. |
url |
https://doi.org/10.1155/2013/725459 |
work_keys_str_mv |
AT songli energyefficientpowerallocationforbidirectionalrelayingwithimperfectchannelestimation AT yanjingsun energyefficientpowerallocationforbidirectionalrelayingwithimperfectchannelestimation AT honglixu energyefficientpowerallocationforbidirectionalrelayingwithimperfectchannelestimation AT zhisun energyefficientpowerallocationforbidirectionalrelayingwithimperfectchannelestimation AT wenjuanshi energyefficientpowerallocationforbidirectionalrelayingwithimperfectchannelestimation |
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1724603142920732672 |