Machine Learning and Intelligent Communications. First International Conference, MLICOM 2016, Shanghai, China, August 27-28, 2016, Revised Selected Papers

Research Article

A Spectrum Access Scheme for MIMO Cognitive Networks with Beamforming Design

Download
160 downloads
  • @INPROCEEDINGS{10.1007/978-3-319-52730-7_12,
        author={Yanbing Wang and Weidang Lu and Hong Peng and Zhijiang Xu and Xin Liu},
        title={A Spectrum Access Scheme for MIMO Cognitive Networks with Beamforming Design},
        proceedings={Machine Learning and Intelligent Communications. First International Conference, MLICOM 2016, Shanghai, China, August 27-28, 2016, Revised Selected Papers},
        proceedings_a={MLICOM},
        year={2017},
        month={2},
        keywords={Cognitive network MIMO Beamforming Multi-antenna},
        doi={10.1007/978-3-319-52730-7_12}
    }
    
  • Yanbing Wang
    Weidang Lu
    Hong Peng
    Zhijiang Xu
    Xin Liu
    Year: 2017
    A Spectrum Access Scheme for MIMO Cognitive Networks with Beamforming Design
    MLICOM
    Springer
    DOI: 10.1007/978-3-319-52730-7_12
Yanbing Wang1,*, Weidang Lu1, Hong Peng1, Zhijiang Xu1, Xin Liu2
  • 1: Zhejiang University of Technology
  • 2: Dalian University of Technology
*Contact email: wangyanbing2016@gmail.com

Abstract

This paper studies a spectrum access scheme to increase the spectral utilization for the multi-antenna cognitive radio (CR) network. The network comprises of one transmitter-receiver pair for primary users (PUs) and another pair for secondary users (SUs) with secondary transmitter equipped with multi-antenna. We divide the transmission time into two equal time phases, the first for PUs to transmit signals and the second for SUs to relay and transmit self-information. We aim to maximize the data rate of the secondary system through designing the beamforming vectors and power scaling factors with zero-force beamforming (ZFBF) to eliminate the co-channel interference, under the condition that PUs can achieve the target rate. The simulation results demonstrate a higher spectral utilization and a performance gain with the proposed scheme.