Joint Wireless Information and Energy Transfer With Reduced Feedback in MIMO Interference Channels
File(s)manuscript.pdf (2.05 MB)
Accepted version
Author(s)
Park, J
Clerckx, B
Type
Journal Article
Abstract
To determine the transmission strategy for the joint wireless information and energy transfer (JWIET) in the MIMO interference channel (IFC), the information access point (IAP) and energy access point (EAP) require the channel state information (CSI) of their associated links to both the information-decoding (ID) mobile stations (MSs) and energy-harvesting (EH) MSs (so-called local CSI). In this paper, to reduce the feedback overhead of MSs for the JWIET in two-user MIMO IFC, we propose a Geodesic energy beamforming scheme that requires partial CSI at the EAP. Furthermore, in the two-user MIMO IFC, it is proved that the Geodesic energy beamforming is the optimal non-cooperative strategy under local CSIT assumption. By adding a rank-one constraint on the transmit signal covariance of IAP, we can further reduce the feedback overhead to IAP by exploiting Geodesic information beamforming. Under the rank-one constraint of IAP's transmit signal, we prove that Geodesic information/energy beamforming approach is the optimal non-cooperative strategy for JWIET in the two-user MIMO IFC. We also discuss the extension of the proposed rank-one Geodesic information/energy beamforming strategies to general K-user MIMO IFC. Finally, by analyzing the achievable rate-energy performance statistically under imperfect partial CSIT, we propose an adaptive bit allocation strategy for both EH MS and ID MS.
Date Issued
2015-01-13
Date Acceptance
2014-04-01
Citation
IEEE Journal on Selected Areas in Communications, 2015, 33 (8), pp.1563-1577
ISSN
1558-0008
Publisher
IEEE
Start Page
1563
End Page
1577
Journal / Book Title
IEEE Journal on Selected Areas in Communications
Volume
33
Issue
8
Copyright Statement
© 2015 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Subjects
Science & Technology
Technology
Engineering, Electrical & Electronic
Telecommunications
Engineering
Joint wireless information and energy transfer
MIMO interference channel
geodesic beamforming
limited feedback
POWER TRANSFER
ANTENNA SELECTION
SYSTEMS
ALGORITHM
Networking & Telecommunications
0906 Electrical And Electronic Engineering
1005 Communications Technologies
0805 Distributed Computing
Publication Status
Published