Full-Duplex Cooperative Cognitive Radio Networks with Simultaneous Transmit and Receive Antennas in MIMO Channels

Sangwoo PARK  Iickho SONG  Seungwon LEE  Seokho YOON  

IEICE TRANSACTIONS on Communications   Vol.E101-B   No.8   pp.1903-1915
Publication Date: 2018/08/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.2017EBP3138
Type of Manuscript: PAPER
Category: Wireless Communication Technologies
beamforming,  cognitive radio,  cognitive spectrum sharing,  cooperation communication,  full-duplex,  multiple-input-multiple-output,  relay,  simultaneous transmission and reception,  

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We propose a cooperative cognitive radio network (CCRN) with secondary users (SUs) employing two simultaneous transmit and receive (STAR) antennas. In the proposed framework of full-duplex (FD) multiple-input-multiple-output (MIMO) CCRN, the region of achievable rate is expanded via FD communication among SUs enabled by the STAR antennas adopted for the SUs. The link capacity of the proposed framework is analyzed theoretically. It is shown through numerical analysis that the proposed FD MIMO-CCRN framework can provide a considerable performance gain over the conventional frameworks of CCRN and MIMO-CCRN.