Joint beamforming and power management for nonregenerative MIMO two-way relaying channels

Chee Yen Leow; Zhiguo Ding; Kin K. Leung

doi:10.1109/TVT.2011.2172009

Joint beamforming and power management for nonregenerative MIMO two-way relaying channels

Chee Yen Leow, Zhiguo Ding, Kin K. Leung

Electrical Engineering

Research output: Contribution to journal › Article › peer-review

29 Scopus citations

Abstract

We consider multiple-input-multiple-output (MIMO) two-way relaying channels where a pair of multiantenna users wishes to exchange information with the help of a nonregenerative multiantenna relay. A low-complexity joint beamforming and power management scheme is proposed. The proposed beamformers first align the channel matrices of the user pair and then decompose the aligned channel into parallel subchannels. Two power management issues, i.e., power allocation and power control, are addressed in this paper. First, sum-rate optimizing power allocation is proposed to allocate power between all subchannels and nodes. Second, quality of service (QoS) satisfying power control is proposed to minimize the total transmission power in the network. Simulation results justify that the proposed joint beamforming and power management scheme delivers better sum-rate performance or consumes lower transmission power when compared with existing schemes.

Original language	British English
Article number	6056580
Pages (from-to)	4374-4383
Number of pages	10
Journal	IEEE Transactions on Vehicular Technology
Volume	60
Issue number	9
DOIs	https://doi.org/10.1109/TVT.2011.2172009
State	Published - Nov 2011

Keywords

Beamforming
convex optimization
power allocation
power control

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10.1109/TVT.2011.2172009

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title = "Joint beamforming and power management for nonregenerative MIMO two-way relaying channels",

abstract = "We consider multiple-input-multiple-output (MIMO) two-way relaying channels where a pair of multiantenna users wishes to exchange information with the help of a nonregenerative multiantenna relay. A low-complexity joint beamforming and power management scheme is proposed. The proposed beamformers first align the channel matrices of the user pair and then decompose the aligned channel into parallel subchannels. Two power management issues, i.e., power allocation and power control, are addressed in this paper. First, sum-rate optimizing power allocation is proposed to allocate power between all subchannels and nodes. Second, quality of service (QoS) satisfying power control is proposed to minimize the total transmission power in the network. Simulation results justify that the proposed joint beamforming and power management scheme delivers better sum-rate performance or consumes lower transmission power when compared with existing schemes.",

keywords = "Beamforming, convex optimization, power allocation, power control",

author = "Leow, {Chee Yen} and Zhiguo Ding and Leung, {Kin K.}",

note = "Funding Information: Manuscript received May 11, 2011; revised August 23, 2011; accepted October 2, 2011. Date of publication October 20, 2011; date of current version December 9, 2011. This work was supported by the U.S. Army Research Laboratory and the U.K. Ministry of Defence under Agreement W911NF-06-3-0001. The work of C. Y. Leow was supported by Universiti Teknologi Malaysia and the Ministry of Higher Education Malaysia. The work of Z. Ding was supported by the U.K. Engineering and Physical Sciences Research Council under Grant EP/I037423/1. This paper was presented in part at the IEEE International Conference on Communications, Kyoto, Japan, June 5–9, 2011. The review of this paper was coordinated by Prof. E. Bonek.",

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N2 - We consider multiple-input-multiple-output (MIMO) two-way relaying channels where a pair of multiantenna users wishes to exchange information with the help of a nonregenerative multiantenna relay. A low-complexity joint beamforming and power management scheme is proposed. The proposed beamformers first align the channel matrices of the user pair and then decompose the aligned channel into parallel subchannels. Two power management issues, i.e., power allocation and power control, are addressed in this paper. First, sum-rate optimizing power allocation is proposed to allocate power between all subchannels and nodes. Second, quality of service (QoS) satisfying power control is proposed to minimize the total transmission power in the network. Simulation results justify that the proposed joint beamforming and power management scheme delivers better sum-rate performance or consumes lower transmission power when compared with existing schemes.

AB - We consider multiple-input-multiple-output (MIMO) two-way relaying channels where a pair of multiantenna users wishes to exchange information with the help of a nonregenerative multiantenna relay. A low-complexity joint beamforming and power management scheme is proposed. The proposed beamformers first align the channel matrices of the user pair and then decompose the aligned channel into parallel subchannels. Two power management issues, i.e., power allocation and power control, are addressed in this paper. First, sum-rate optimizing power allocation is proposed to allocate power between all subchannels and nodes. Second, quality of service (QoS) satisfying power control is proposed to minimize the total transmission power in the network. Simulation results justify that the proposed joint beamforming and power management scheme delivers better sum-rate performance or consumes lower transmission power when compared with existing schemes.

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Joint beamforming and power management for nonregenerative MIMO two-way relaying channels

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Keywords

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