Joint Power Allocation and Beamforming in Amplify-and-Forward Relay Networks under Per-Node Power Constraint
Joint Authors
Azami, Farzin
Safavi Hemami, Seyed Mostafa
Akbarpour-Kasgari, Abbas
Source
Wireless Communications and Mobile Computing
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-05-28
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Information Technology and Computer Science
Abstract EN
Two-way relay networks (TWRN) have been intensively investigated over the past decade due to their ability to enhance the performance assessment of networks in terms of cellular coverage and spectral efficiency.
Yet, power control in such systems is a nontrivial issue, particularly in multirelay networks where relays are deployed to ensure a required Quality of Service (QoS).
In this paper, we envision to address this critical issue by minimizing the sum-power with respect to per-node power consumption and acceptable users’ rates.
To tackle this, we employ a variable transformation to turn the fractional quadratically constrained quadratic problem (QCQP) into semidefinite programming (SDP).
This algorithm is also extended to a distributed format.
Simulation results of deploying 10 relay stations reveal that the total power consumption will decrease to approximately 8 dBW for 6 bps/Hz sum-rate.
American Psychological Association (APA)
Azami, Farzin& Safavi Hemami, Seyed Mostafa& Akbarpour-Kasgari, Abbas. 2017. Joint Power Allocation and Beamforming in Amplify-and-Forward Relay Networks under Per-Node Power Constraint. Wireless Communications and Mobile Computing،Vol. 2017, no. 2017, pp.1-9.
https://search.emarefa.net/detail/BIM-1205976
Modern Language Association (MLA)
Azami, Farzin…[et al.]. Joint Power Allocation and Beamforming in Amplify-and-Forward Relay Networks under Per-Node Power Constraint. Wireless Communications and Mobile Computing No. 2017 (2017), pp.1-9.
https://search.emarefa.net/detail/BIM-1205976
American Medical Association (AMA)
Azami, Farzin& Safavi Hemami, Seyed Mostafa& Akbarpour-Kasgari, Abbas. Joint Power Allocation and Beamforming in Amplify-and-Forward Relay Networks under Per-Node Power Constraint. Wireless Communications and Mobile Computing. 2017. Vol. 2017, no. 2017, pp.1-9.
https://search.emarefa.net/detail/BIM-1205976
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1205976