NDLI: High-performance beamforming and spatial channel pairing schemes at relay station for AF-based multi-pair two-way relay networks

Content Provider	IEEE Xplore Digital Library
Author	Chen, Yu Shu, Feng Wang, Jin Gui, Linqing Tong, Juanjuan
Copyright Year	2014
Description	Author affiliation: School of Electronic and Optical Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China (Chen, Yu; Shu, Feng; Wang, Jin; Gui, Linqing; Tong, Juanjuan)
Abstract	This paper proposes a high-sum-rate maximum signal-to-interference and noise ratio (Max-SINR) plus maximum signal-to-leakage and noise ratio (Max-SLNR) beamforming per user (Max-SINR plus Max-SLNR per user) at the relay station (RS) for multi-pair two-way relay system with multi-antenna users. The proposed beamformer applies Max-SINR and Max-SLNR to uplink and downlink channels, respectively. It beam-forms all antennas per user together not individually (called Max-SINR plus Max-SLNR per antenna). Following this, three spatial channel pairing (SCP) schemes including maximum sum-rate (Max-SR), random and minimum sum-rate (Min-SR) at RS are developed. Simulation results show the proposed Max-SINR plus Max-SLNR per user achieves appreciable sum-rate gains over existing Max-SINR plus Max-SLNR per antenna, zero-forcing and block diagonalization beamformers while the proposed Max-SR-SCP achieves substantial sum-rate gains over Min-SR-SCP and random SCP.
Starting Page	1
Ending Page	4
File Size	10621162
Page Count	4
File Format	PDF
ISBN	9781479973392
DOI	10.1109/WCSP.2014.6992011
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-10-23
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Array signal processing Interference Downlink Vectors Relays Antennas Signal to noise ratio
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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