Joint Relay–User Beamforming Design in a Full-Duplex Two-Way Relay Channel

A full-duplex (FD) two-way relay channel (TWRC) with multiple antennas is considered. For this three-node network, the beamforming design needs to suppress self-interference (SI). While a traditional way is to apply zero forcing (ZF) for SI mitigation, it may harm the desired signals. In this paper, a design that reserves a fraction of SI is proposed by solving a quality-of-service (QoS) constrained beamforming design problem. Since the problem is challenging due to the loop SI, a convergence-guaranteed alternating optimization (AO) algorithm is proposed to jointly design the relay-user beamformers. Numerical results show that the proposed scheme outperforms ZF method and achieves a transmit power value close to the ideal case.

• Record URL:
  https://doi.org/10.1109/TVT.2016.2583261
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00189545
• Supplemental Notes:
  • Copyright © 2017, IEEE.
• Authors:
  • Wen, Zhigang
  • Wang, Shuai
  • Liu, Xiaoqing
  • Zou, Junwei
• Publication Date: 2017-3

Language

• English

Media Info

• Media Type: Web
• Features: References;
• Pagination: pp 2874-2879
• Serial:
  • IEEE Transactions on Vehicular Technology
  • Volume: 66
  • Issue Number: 3
  • Publisher: Institute of Electrical and Electronics Engineers (IEEE)
  • ISSN: 0018-9545
  • Serial URL: http://ieeexplore.ieee.org/xpl/mostRecentIssue.jsp?punumber=25

Subject/Index Terms

• TRT Terms: Algorithms; Phased arrays; Programming (Mathematics); Radio relay systems; Transmission errors and interference
• Uncontrolled Terms: Quality of service (Communications)
• Subject Areas: Data and Information Technology; Highways;

Filing Info

• Accession Number: 01633468
• Record Type: Publication
• Files: TRIS
• Created Date: Mar 16 2017 11:16AM